Area Code 410 Location - Maryland
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Cities in Areacode 410
- Annapolis
- Arbutus
- Arnold
- Baltimore
- Bel Air North
- Bel Air South
- Carney
- Catonsville
- Columbia
- Crofton
- Dundalk
- Edgewood
- Eldersburg
- West Elkridge
- Ellicott City
- Essex
- Glen Burnie
- Lochearn
- Middle River
- Milford Mill
- Odenton
- Parkville
- Perry Hall
- Pikesville
- Randallstown
- Reisterstown
- Salisbury
- Severn
- Severna Park
- South Gate
- Towson
| PREFIX | USAGE | PRIMARY CITY | CARRIER |
|---|---|---|---|
| 410-776- | Landline | Bel Air | Teleport Communications America |
| 410-246- | Landline | Baltimore | Mci Worldcom Communications |
| 410-313- | Landline | Ellicott City | Verizon Maryland |
| 410-328- | Landline | Baltimore | Verizon Maryland |
| 410-847- | Landline | Towson | Verizon Maryland |
| 410-721- | Landline | Crofton | Verizon Maryland |
| 410-712- | Landline | Elkridge | Verizon Maryland |
| 410-888- | Landline | Laurel | Verizon Maryland |
| 410-728- | Landline | Baltimore | Verizon Maryland |
| 410-807- | Landline | Laurel | Tw Telecom Of Maryland LLC |
| 410-848- | Landline | Westminster | Verizon Maryland |
| 410-256- | Landline | Parkville | Verizon Maryland |
| 410-520- | Landline | Ocean City | Verizon Maryland |
| 410-883- | Landline | Rhodesdale | Verizon Maryland |
| 410-322- | Wireless | Bel Air | New Cingular Wireless PCS - DC |
| 410-755- | Landline | Warwick | Verizon Maryland |
| 410-242- | Landline | Arbutus | Verizon Maryland |
| 410-275- | Landline | Warwick | Verizon Maryland |
| 410-534- | Landline | Baltimore | Verizon Maryland |
| 410-547- | Landline | Baltimore | Verizon Maryland |
| 410-541- | Landline | Severna Park | Verizon Maryland |
| 410-951- | Landline | Baltimore | Teleport Communications America |
| 410-843- | Landline | Baltimore | Teleport Communications America |
| 410-588- | Landline | Bel Air | Verizon Maryland |
| 410-978- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-208- | Landline | Berlin | Verizon Maryland |
| 410-583- | Landline | Towson | Verizon Maryland |
| 410-358- | Landline | Baltimore | Verizon Maryland |
| 410-585- | Landline | Baltimore | Verizon Maryland |
| 410-737- | Landline | Arbutus | Verizon Maryland |
| 410-747- | Landline | Catonsville | Verizon Maryland |
| 410-315- | Landline | Severna Park | Verizon Maryland |
| 410-236- | Wireless | Towson | New Cingular Wireless PCS - DC |
| 410-644- | Landline | Baltimore | Verizon Maryland |
| 410-849- | Landline | Sherwood Forest | Verizon Maryland |
| 410-897- | Landline | Annapolis | Verizon Maryland |
| 410-371- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-941- | Landline | Jarrettsville | Verizon Maryland |
| 410-724- | Landline | Laurel | Verizon Maryland |
| 410-494- | Landline | Towson | Verizon Maryland |
| 410-431- | Landline | Severna Park | Verizon Maryland |
| 410-512- | Landline | Towson | Verizon Maryland |
| 410-734- | Landline | Churchville | Verizon Maryland |
| 410-451- | Landline | Crofton | Verizon Maryland |
| 410-655- | Landline | Randallstown | Verizon Maryland |
| 410-787- | Landline | Glen Burnie | Verizon Maryland |
| 410-222- | Landline | Severn | Verizon Maryland |
| 410-909- | Wireless | Elkridge | Usa Mobility Wireless |
| 410-495- | Landline | Port Republic | Verizon Maryland |
| 410-960- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-452- | Landline | Cardiff | Verizon Maryland |
| 410-519- | Landline | Severn | Verizon Maryland |
| 410-391- | Landline | Essex | Verizon Maryland |
| 410-482- | Landline | Greensboro | Verizon Maryland |
| 410-606- | Wireless | Beltsville | Verizon Maryland |
| 410-979- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-805- | Wireless | Towson | Sprint Spectrum L.p. |
| 410-413- | Landline | Baltimore | Mci Worldcom Communications |
| 410-910- | Landline | Baltimore | Mci Worldcom Communications |
| 410-991- | Wireless | Annapolis | Cellco Partnership DBA Verizon Wireless |
| 410-427- | Landline | Baltimore | Teleport Communications America |
| 410-973- | Landline | Berlin | Mcc Telephony Of The Mid-atlantic |
| 410-296- | Landline | Towson | Verizon Maryland |
| 410-581- | Landline | Pikesville | Verizon Maryland |
| 410-871- | Landline | Westminster | Verizon Maryland |
| 410-421- | Landline | Severna Park | Verizon Maryland |
| 410-908- | Wireless | Baltimore | Sprint Spectrum L.p. |
| 410-574- | Landline | Essex | Verizon Maryland |
| 410-304- | Landline | Queenstown | Idt America Corp |
| 410-350- | Landline | Baltimore | Verizon Maryland |
| 410-318- | Landline | Baltimore | Verizon Maryland |
| 410-640- | Wireless | Baltimore | Usa Mobility Wireless |
| 410-679- | Landline | Edgewood | Verizon Maryland |
| 410-636- | Landline | Brooklyn | Verizon Maryland |
| 410-565- | Landline | Arbutus | Tw Telecom Of Maryland LLC |
| 410-434- | Wireless | Towson | Usa Mobility Wireless |
| 410-320- | Wireless | Annapolis | Sprint Spectrum L.p. |
| 410-601- | Landline | Baltimore | Verizon Maryland |
| 410-253- | Wireless | Easton | New Cingular Wireless PCS - DC |
| 410-653- | Landline | Pikesville | Verizon Maryland |
| 410-576- | Landline | Baltimore | Verizon Maryland |
| 410-891- | Landline | Baltimore | Mci Worldcom Communications |
| 410-205- | Landline | Baltimore | Verizon Maryland |
| 410-336- | Wireless | Baltimore | New Cingular Wireless PCS - DC |
| 410-857- | Landline | Westminster | Verizon Maryland |
| 410-931- | Landline | Parkville | Verizon Maryland |
| 410-650- | Landline | Baltimore | Mci Worldcom Communications |
| 410-974- | Landline | Arnold | Verizon Maryland |
| 410-907- | Landline | Baltimore | Mci Worldcom Communications |
| 410-996- | Landline | Port Deposit | Verizon Maryland |
| 410-437- | Landline | Pasadena | Verizon Maryland |
| 410-218- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-923- | Landline | Millersville | Verizon Maryland |
| 410-241- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-268- | Landline | Annapolis | Verizon Maryland |
| 410-810- | Landline | Chestertown | Verizon Maryland |
| 410-400- | Landline | Baltimore | Cavalier Telephone Mid-atlantic |
| 410-223- | Landline | Baltimore | Verizon Maryland |
| 410-448- | Landline | Baltimore | Verizon Maryland |
| 410-595- | Landline | Laurel | Tw Telecom Of Maryland LLC |
| 410-472- | Landline | Sparks Glencoe | Verizon Maryland |
| 410-981- | Landline | Linthicum Heights | Verizon Maryland |
| 410-255- | Landline | Pasadena | Verizon Maryland |
| 410-778- | Landline | Chestertown | Verizon Maryland |
| 410-616- | Landline | Baltimore | Mci Worldcom Communications |
| 410-869- | Landline | Catonsville | Verizon Maryland |
| 410-914- | Landline | Churchville | Cavalier Telephone (mid-atlantic) |
| 410-818- | Landline | Baltimore | Teleport Communications America |
| 410-281- | Landline | Woodlawn | Verizon Maryland |
| 410-542- | Landline | Baltimore | Verizon Maryland |
| 410-226- | Landline | Oxford | Verizon Maryland |
| 410-765- | Landline | Linthicum Heights | Verizon Maryland |
| 410-814- | Landline | Baltimore | Cavalier Telephone Mid-atlantic |
| 410-429- | Landline | Reisterstown | Verizon Maryland |
| 410-329- | Landline | Cockeysville | Verizon Maryland |
| 410-830- | Landline | Towson | Verizon Maryland |
| 410-524- | Landline | Ocean City | Verizon Maryland |
| 410-704- | Landline | Baltimore | Mci Worldcom Communications |
| 410-764- | Landline | Baltimore | Verizon Maryland |
| 410-754- | Landline | Federalsburg | Verizon Maryland |
| 410-471- | Landline | Elkridge | Verizon Maryland |
| 410-723- | Landline | Ocean City | Verizon Maryland |
| 410-782- | Landline | Elkridge | Verizon Maryland |
| 410-418- | Landline | Ellicott City | Verizon Maryland |
| 410-900- | Landline | Baltimore | Ctc Communications Corp. |
| 410-987- | Landline | Severn | Verizon Maryland |
| 410-789- | Landline | Brooklyn | Verizon Maryland |
| 410-727- | Landline | Baltimore | Verizon Maryland |
| 410-829- | Wireless | Easton | Cellco Partnership DBA Verizon Wireless |
| 410-202- | Landline | Salisbury | Cellco Partnership DBA Verizon Wireless |
| 410-866- | Landline | Baltimore | Verizon Maryland |
| 410-263- | Landline | Annapolis | Verizon Maryland |
| 410-331- | Wireless | Elkridge | Usa Mobility Wireless |
| 410-393- | Landline | Cockeysville | Verizon Maryland |
| 410-662- | Landline | Baltimore | Verizon Maryland |
| 410-453- | Landline | Towson | Verizon Maryland |
| 410-757- | Landline | Annapolis | Verizon Maryland |
| 410-528- | Landline | Baltimore | Verizon Maryland |
| 410-790- | Wireless | Towson | New Cingular Wireless PCS - DC |
| 410-579- | Landline | Elkridge | Verizon Maryland |
| 410-569- | Landline | Edgewood | Verizon Maryland |
| 410-578- | Landline | Baltimore | Verizon Maryland |
| 410-886- | Landline | Tilghman | Verizon Maryland |
| 410-473- | Wireless | Towson | Usa Mobility Wireless |
| 410-465- | Landline | Ellicott City | Verizon Maryland |
| 410-233- | Landline | Baltimore | Verizon Maryland |
| 410-432- | Landline | Severna Park | Verizon Maryland |
| 410-496- | Landline | Randallstown | Verizon Maryland |
| 410-940- | Landline | Annapolis | Atx Telecommunications Services, Ltd |
| 410-680- | Landline | Laurel | Tw Telecom Of Maryland LLC |
| 410-797- | Landline | Laurel | Verizon Maryland |
| 410-988- | Landline | Columbia | Verizon Maryland |
| 410-401- | Landline | Baltimore | Mci Worldcom Communications |
| 410-564- | Landline | Baltimore | Teleport Communications America |
| 410-533- | Wireless | Annapolis | New Cingular Wireless PCS - DC |
| 410-282- | Landline | Dundalk | Verizon Maryland |
| 410-859- | Landline | Linthicum Heights | Verizon Maryland |
| 410-374- | Landline | Hampstead | Verizon Maryland |
| 410-685- | Landline | Baltimore | Verizon Maryland |
| 410-505- | Landline | Ellicott City | Verizon Maryland |
| 410-761- | Landline | Glen Burnie | Verizon Maryland |
| 410-240- | Wireless | Baltimore | Sprint Spectrum L.p. |
| 410-641- | Landline | Berlin | Verizon Maryland |
| 410-466- | Landline | Baltimore | Verizon Maryland |
| 410-663- | Landline | Parkville | Verizon Maryland |
| 410-912- | Landline | Salisbury | Cavalier Telephone (mid-atlantic) |
| 410-617- | Landline | Baltimore | Verizon Maryland |
| 410-558- | Landline | Baltimore | Verizon Maryland |
| 410-590- | Landline | Glen Burnie | Verizon Maryland |
| 410-436- | Landline | Edgewood | Verizon Maryland |
| 410-763- | Landline | Easton | Verizon Maryland |
| 410-492- | Wireless | Towson | Usa Mobility Wireless |
| 410-593- | Landline | Fork | Verizon Maryland |
| 410-984- | Wireless | Sykesville | Sprint Spectrum L.p. |
| 410-828- | Landline | Towson | Verizon Maryland |
| 410-850- | Landline | Linthicum Heights | Verizon Maryland |
| 410-924- | Wireless | Easton | Cellco Partnership DBA Verizon Wireless |
| 410-539- | Landline | Baltimore | Verizon Maryland |
| 410-605- | Landline | Baltimore | Verizon Maryland |
| 410-295- | Landline | Annapolis | Verizon Maryland |
| 410-245- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-349- | Landline | Annapolis | Verizon Maryland |
| 410-995- | Landline | Ellicott City | Verizon Maryland |
| 410-209- | Landline | Baltimore | Verizon Maryland |
| 410-881- | Landline | Sherwood Forest | Mci Worldcom Communications |
| 410-403- | Landline | Baltimore | Mci Worldcom Communications |
| 410-449- | Landline | Solomons | Bandwidth.com Clec |
| 410-896- | Landline | Delmar | Verizon Maryland |
| 410-955- | Landline | Baltimore | Verizon Maryland |
| 410-385- | Landline | Baltimore | Verizon Maryland |
| 410-845- | Wireless | Salisbury | Sprint Spectrum L.p. |
| 410-777- | Landline | Severna Park | Mci Worldcom Communications |
| 410-214- | Landline | Rising Sun | Core Communications |
| 410-510- | Landline | Fork | Teleport Communications America |
| 410-684- | Landline | Linthicum Heights | Verizon Maryland |
| 410-722- | Landline | Beltsville | Verizon Maryland |
| 410-697- | Landline | Millersville | Mci Worldcom Communications |
| 410-998- | Landline | Pikesville | Verizon Maryland |
| 410-637- | Landline | Baltimore | Verizon Maryland |
| 410-478- | Wireless | Elkridge | Usa Mobility Wireless |
| 410-686- | Landline | Essex | Verizon Maryland |
| 410-689- | Landline | Baltimore | Teleport Communications America |
| 410-824- | Landline | Laurel | Tw Telecom Of Maryland LLC |
| 410-538- | Landline | Edgewood | Verizon Maryland |
| 410-265- | Landline | Woodlawn | Verizon Maryland |
| 410-515- | Landline | Abingdon | Verizon Maryland |
| 410-930- | Wireless | Baltimore | Redi-call Communications Co |
| 410-708- | Wireless | Chestertown | Cellco Partnership DBA Verizon Wireless |
| 410-631- | Landline | Baltimore | Verizon Maryland |
| 410-766- | Landline | Glen Burnie | Verizon Maryland |
| 410-363- | Landline | Pikesville | Verizon Maryland |
| 410-844- | Landline | Baltimore | Peerless Network Of Maryland |
| 410-705- | Landline | Beltsville | Verizon Maryland |
| 410-267- | Landline | Annapolis | Verizon Maryland |
| 410-976- | Unknown | Baltimore-washington Telephone (bwt) | |
| 410-878- | Landline | Baltimore | Mci Worldcom Communications |
| 410-831- | Wireless | Salisbury | Halo Wireless Services |
| 410-698- | Landline | Fork | Mci Worldcom Communications |
| 410-980- | Landline | Annapolis | Cellco Partnership DBA Verizon Wireless |
| 410-713- | Landline | Salisbury | Level 3 Communications |
| 410-212- | Wireless | Annapolis | Sprint Spectrum L.p. |
| 410-795- | Landline | Sykesville | Verizon Maryland |
| 410-657- | Landline | Baltimore | Mci Worldcom Communications |
| 410-619- | Wireless | Laurel | Verizon Maryland |
| 410-522- | Landline | Baltimore | Verizon Maryland |
| 410-862- | Landline | Laurel | Verizon Maryland |
| 410-446- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-817- | Landline | Fork | Verizon Maryland |
| 410-675- | Landline | Baltimore | Verizon Maryland |
| 410-562- | Wireless | Annapolis | New Cingular Wireless PCS - DC |
| 410-526- | Landline | Reisterstown | Verizon Maryland |
| 410-877- | Landline | Fallston | Verizon Maryland |
| 410-545- | Landline | Baltimore | Verizon Maryland |
| 410-203- | Landline | Ellicott City | Verizon Maryland |
| 410-417- | Landline | Edgewood | Verizon Maryland |
| 410-258- | Wireless | Baltimore | Sprint Spectrum L.p. |
| 410-873- | Landline | Nanticoke | Verizon Maryland |
| 410-842- | Landline | Baltimore | Mci Worldcom Communications |
| 410-827- | Landline | Queenstown | Verizon Maryland |
| 410-435- | Landline | Baltimore | Verizon Maryland |
| 410-532- | Landline | Baltimore | Verizon Maryland |
| 410-476- | Landline | Trappe | Verizon Maryland |
| 410-938- | Landline | Towson | Verizon Maryland |
| 410-479- | Landline | Denton | Verizon Maryland |
| 410-750- | Landline | Ellicott City | Verizon Maryland |
| 410-792- | Landline | Laurel | Verizon Maryland |
| 410-670- | Landline | Edgewood | Mci Worldcom Communications |
| 410-409- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-802- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-490- | Wireless | Centreville | Cellco Partnership DBA Verizon Wireless |
| 410-276- | Landline | Baltimore | Verizon Maryland |
| 410-580- | Landline | Pikesville | Verizon Maryland |
| 410-855- | Landline | Linthicum Heights | Verizon Maryland |
| 410-571- | Landline | Annapolis | Verizon Maryland |
| 410-567- | Landline | Baltimore | Mci Worldcom Communications |
| 410-408- | Wireless | Towson | Usa Mobility Wireless |
| 410-507- | Wireless | Annapolis | Cellco Partnership DBA Verizon Wireless |
| 410-885- | Landline | Chesapeake City | Verizon Maryland |
| 410-975- | Landline | Severna Park | Verizon Maryland |
| 410-292- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-485- | Landline | Baltimore | Verizon Maryland |
| 410-207- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-794- | Landline | Laurel | Tw Telecom Of Maryland LLC |
| 410-994- | Landline | Aberdeen | Verizon Maryland |
| 410-501- | Landline | Arbutus | Lightwave Communications |
| 410-889- | Landline | Baltimore | Verizon Maryland |
| 410-285- | Landline | Dundalk | Verizon Maryland |
| 410-339- | Landline | Towson | Verizon Maryland |
| 410-540- | Landline | Elkridge | Verizon Maryland |
| 410-502- | Landline | Baltimore | Verizon Maryland |
| 410-846- | Landline | Baltimore | Mci Worldcom Communications |
| 410-785- | Landline | Cockeysville | Verizon Maryland |
| 410-291- | Landline | Baltimore | Verizon Maryland |
| 410-537- | Landline | Baltimore | Verizon Maryland |
| 410-649- | Landline | Baltimore | Teleport Communications America |
| 410-652- | Wireless | Bel Air | New Cingular Wireless PCS - DC |
| 410-381- | Landline | Columbia | Verizon Maryland |
| 410-992- | Landline | Columbia | Verizon Maryland |
| 410-397- | Landline | Crapo | Verizon Maryland |
| 410-714- | Wireless | Easton | New Cingular Wireless PCS - DC |
| 410-525- | Landline | Baltimore | Verizon Maryland |
| 410-487- | Landline | Baltimore | Mci Worldcom Communications |
| 410-677- | Landline | Salisbury | Verizon Maryland |
| 410-967- | Wireless | Towson | New Cingular Wireless PCS - DC |
| 410-895- | Landline | Baltimore | Verizon Maryland |
| 410-424- | Landline | Glen Burnie | Verizon Maryland |
| 410-247- | Landline | Arbutus | Verizon Maryland |
| 410-874- | Landline | Odenton | Mci Worldcom Communications |
| 410-791- | Wireless | Beltsville | Verizon Maryland |
| 410-444- | Landline | Baltimore | Verizon Maryland |
| 410-748- | Landline | Ellicott City | Usa Mobility Wireless |
| 410-570- | Wireless | Annapolis | New Cingular Wireless PCS - DC |
| 410-509- | Landline | Baltimore | Baltimore-washington Telephone (bwt) |
| 410-977- | Wireless | Baltimore | Sprint Spectrum L.p. |
| 410-326- | Landline | Solomons | Verizon Maryland |
| 410-608- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-671- | Landline | Edgewood | Verizon Maryland |
| 410-603- | Wireless | Salisbury | New Cingular Wireless PCS - DC |
| 410-838- | Landline | Bel Air | Verizon Maryland |
| 410-821- | Landline | Towson | Verizon Maryland |
| 410-628- | Landline | Cockeysville | Verizon Maryland |
| 410-394- | Landline | Solomons | Verizon Maryland |
| 410-701- | Landline | Baltimore | Mci Worldcom Communications |
| 410-929- | Landline | Baltimore | Bandwidth.com Clec |
| 410-360- | Landline | Pasadena | Verizon Maryland |
| 410-517- | Landline | Reisterstown | Verizon Maryland |
| 410-921- | Landline | Laurel | Tw Telecom Of Maryland LLC |
| 410-966- | Landline | Woodlawn | Verizon Maryland |
| 410-865- | Landline | Linthicum Heights | Verizon Maryland |
| 410-338- | Landline | Baltimore | Verizon Maryland |
| 410-876- | Landline | Westminster | Verizon Maryland |
| 410-660- | Wireless | Elkridge | Sprint Spectrum L.p. |
| 410-316- | Landline | Cockeysville | Verizon Maryland |
| 410-299- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-266- | Landline | Annapolis | Verizon Maryland |
| 410-796- | Landline | Elkridge | Verizon Maryland |
| 410-548- | Landline | Salisbury | Verizon Maryland |
| 410-300- | Wireless | Elkridge | Sprint Spectrum L.p. |
| 410-224- | Landline | Annapolis | Verizon Maryland |
| 410-527- | Landline | Cockeysville | Verizon Maryland |
| 410-395- | Wireless | Arbutus | Verizon Maryland |
| 410-213- | Landline | Ocean City | Verizon Maryland |
| 410-635- | Landline | New Windsor | Verizon Maryland |
| 410-947- | Landline | Baltimore | Verizon Maryland |
| 410-610- | Wireless | Prince Frederick | Cellco Partnership DBA Verizon Wireless |
| 410-717- | Landline | Laurel | Tw Telecom Of Maryland LLC |
| 410-963- | Wireless | Baltimore | Sprint Spectrum L.p. |
| 410-716- | Landline | Towson | Verizon Maryland |
| 410-901- | Landline | Cambridge | Verizon Maryland |
| 410-591- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-344- | Landline | White Marsh | Verizon Maryland |
| 410-999- | Landline | Baltimore | Baltimore-washington Telephone (bwt) |
| 410-688- | Wireless | Fallston | Cellco Partnership DBA Verizon Wireless |
| 410-462- | Landline | Baltimore | Verizon Maryland |
| 410-956- | Landline | Annapolis | Verizon Maryland |
| 410-972- | Landline | Annapolis | Teleport Communications America |
| 410-678- | Wireless | Elkridge | Usa Mobility Wireless |
| 410-491- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-943- | Landline | Hurlock | Verizon Maryland |
| 410-741- | Landline | North Beach | Verizon Maryland |
| 410-627- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-587- | Landline | Arbutus | Verizon Maryland |
| 410-551- | Landline | Severn | Verizon Maryland |
| 410-463- | Wireless | Trappe | Cellco Partnership DBA Verizon Wireless |
| 410-559- | Landline | Baltimore | Teleport Communications America |
| 410-416- | Wireless | Laurel | Verizon Maryland |
| 410-668- | Landline | Parkville | Verizon Maryland |
| 410-467- | Landline | Baltimore | Verizon Maryland |
| 410-676- | Landline | Edgewood | Verizon Maryland |
| 410-962- | Landline | Baltimore | Verizon Maryland |
| 410-518- | Landline | Severna Park | Verizon Maryland |
| 410-989- | Landline | Churchville | Verizon Maryland |
| 410-550- | Landline | Baltimore | Verizon Maryland |
| 410-404- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-364- | Landline | Queen Anne | Verizon Maryland |
| 410-793- | Landline | Crofton | Verizon Maryland |
| 410-324- | Landline | Towson | Verizon Maryland |
| 410-341- | Landline | Salisbury | Verizon Maryland |
| 410-345- | Landline | Pikesville | Verizon Maryland |
| 410-504- | Landline | Baltimore | Verizon Maryland |
| 410-260- | Landline | Annapolis | Verizon Maryland |
| 410-915- | Landline | Baltimore | Baltimore-washington Telephone (bwt) |
| 410-290- | Landline | Columbia | Verizon Maryland |
| 410-582- | Landline | Glen Burnie | Verizon Maryland |
| 410-922- | Landline | Randallstown | Verizon Maryland |
| 410-279- | Wireless | Annapolis | Cellco Partnership DBA Verizon Wireless |
| 410-927- | Landline | Laurel | Tw Telecom Of Maryland LLC |
| 410-836- | Landline | Bel Air | Verizon Maryland |
| 410-879- | Landline | Bel Air | Verizon Maryland |
| 410-232- | Wireless | Baltimore | Usa Mobility Wireless |
| 410-752- | Landline | Baltimore | Verizon Maryland |
| 410-259- | Wireless | Westminster | Cellco Partnership DBA Verizon Wireless |
| 410-622- | Wireless | Salisbury | Mci Worldcom Communications |
| 410-365- | Wireless | Baltimore | Sprint Spectrum L.p. |
| 410-460- | Wireless | Elkridge | Usa Mobility Wireless |
| 410-312- | Landline | Columbia | Verizon Maryland |
| 410-993- | Landline | Linthicum Heights | Verizon Maryland |
| 410-957- | Landline | Pocomoke | Verizon Maryland |
| 410-654- | Landline | Pikesville | Verizon Maryland |
| 410-884- | Landline | Columbia | Verizon Maryland |
| 410-309- | Landline | Columbia | Verizon Maryland |
| 410-751- | Landline | Westminster | Verizon Maryland |
| 410-392- | Landline | Elkton | Verizon Maryland |
| 410-772- | Landline | Columbia | Verizon Maryland |
| 410-904- | Landline | Baltimore | Mci Worldcom Communications |
| 410-768- | Landline | Glen Burnie | Verizon Maryland |
| 410-441- | Wireless | Elkton | New Cingular Wireless PCS - DC |
| 410-783- | Landline | Baltimore | Verizon Maryland |
| 410-234- | Landline | Baltimore | Verizon Maryland |
| 410-377- | Landline | Towson | Verizon Maryland |
| 410-383- | Landline | Baltimore | Verizon Maryland |
| 410-340- | Wireless | Baltimore | New Cingular Wireless PCS - DC |
| 410-803- | Landline | Bel Air | Verizon Maryland |
| 410-406- | Landline | Baltimore | Mci Worldcom Communications |
| 410-664- | Landline | Baltimore | Verizon Maryland |
| 410-592- | Landline | Fork | Verizon Maryland |
| 410-621- | Landline | Princess Anne | Verizon Maryland |
| 410-572- | Landline | Salisbury | Verizon Maryland |
| 410-200- | Landline | Easton | Mci Worldcom Communications |
| 410-906- | Landline | Baltimore | Verizon Maryland |
| 410-474- | Wireless | Prince Frederick | Cellco Partnership DBA Verizon Wireless |
| 410-825- | Landline | Towson | Verizon Maryland |
| 410-323- | Landline | Baltimore | Verizon Maryland |
| 410-439- | Landline | Pasadena | Verizon Maryland |
| 410-357- | Landline | Parkton | Verizon Maryland |
| 410-946- | Landline | Annapolis | Verizon Maryland |
| 410-499- | Wireless | Baltimore | Sprint Spectrum L.p. |
| 410-613- | Landline | Baltimore | Verizon Maryland |
| 410-280- | Landline | Annapolis | Verizon Maryland |
| 410-283- | Wireless | Towson | Usa Mobility Wireless |
| 410-238- | Landline | Essex | Verizon Maryland |
| 410-354- | Landline | Baltimore | Verizon Maryland |
| 410-277- | Landline | Woodlawn | Verizon Maryland |
| 410-804- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-633- | Landline | Baltimore | Verizon Maryland |
| 410-573- | Landline | Annapolis | Verizon Maryland |
| 410-808- | Wireless | Fallston | Sprint Spectrum L.p. |
| 410-530- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-835- | Landline | Willards | Verizon Maryland |
| 410-880- | Landline | Laurel | Verizon Maryland |
| 410-206- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-986- | Landline | Baltimore | Verizon Maryland |
| 410-237- | Landline | Baltimore | Verizon Maryland |
| 410-597- | Landline | Woodlawn | Verizon Maryland |
| 410-952- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-308- | Landline | Towson | Verizon Maryland |
| 410-965- | Landline | Woodlawn | Verizon Maryland |
| 410-809- | Landline | Bel Air | Cavalier Telephone (mid-atlantic) |
| 410-220- | Wireless | Elkridge | Sprint Spectrum L.p. |
| 410-298- | Landline | Woodlawn | Verizon Maryland |
| 410-217- | Wireless | Baltimore | Verizon Maryland |
| 410-651- | Landline | Princess Anne | Verizon Maryland |
| 410-736- | Landline | Baltimore | Verizon Maryland |
| 410-709- | Landline | Baltimore | Mci Worldcom Communications |
| 410-882- | Landline | Parkville | Verizon Maryland |
| 410-949- | Landline | Baltimore | Mci Worldcom Communications |
| 410-822- | Landline | Easton | Verizon Maryland |
| 410-774- | Landline | Crofton | Mci Worldcom Communications |
| 410-337- | Landline | Towson | Verizon Maryland |
| 410-735- | Landline | Baltimore | Cavalier Telephone Mid-atlantic |
| 410-455- | Landline | Catonsville | Verizon Maryland |
| 410-780- | Landline | Essex | Verizon Maryland |
| 410-594- | Landline | Woodlawn | Verizon Maryland |
| 410-861- | Landline | Reisterstown | Verizon Maryland |
| 410-343- | Landline | Parkton | Verizon Maryland |
| 410-402- | Landline | Baltimore | Mci Worldcom Communications |
| 410-928- | Landline | Millington | Verizon Maryland |
| 410-948- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-673- | Landline | Preston | Verizon Maryland |
| 410-953- | Landline | Columbia | Verizon Maryland |
| 410-461- | Landline | Ellicott City | Verizon Maryland |
| 410-405- | Landline | Fork | Verizon Maryland |
| 410-422- | Wireless | Salisbury | New Cingular Wireless PCS - DC |
| 410-414- | Landline | Prince Frederick | Verizon Maryland |
| 410-426- | Landline | Baltimore | Verizon Maryland |
| 410-682- | Landline | Essex | Verizon Maryland |
| 410-823- | Landline | Towson | Verizon Maryland |
| 410-618- | Wireless | Salisbury | Idt America Corp |
| 410-745- | Landline | Saint Michaels | Verizon Maryland |
| 410-367- | Landline | Baltimore | Verizon Maryland |
| 410-707- | Wireless | Columbia | Cellco Partnership DBA Verizon Wireless |
| 410-506- | Landline | Elkton | Verizon Maryland |
| 410-389- | Wireless | Baltimore | Usa Mobility Wireless |
| 410-535- | Landline | Port Republic | Verizon Maryland |
| 410-546- | Landline | Salisbury | Verizon Maryland |
| 410-560- | Landline | Towson | Verizon Maryland |
| 410-600- | Landline | Berlin | Sprint Communications Company, L.p. |
| 410-733- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-729- | Landline | Severn | Verizon Maryland |
| 410-898- | Landline | Beltsville | Verizon Maryland |
| 410-629- | Landline | Berlin | Verizon Maryland |
| 410-968- | Landline | Crisfield | Verizon Maryland |
| 410-305- | Landline | Odenton | Verizon Maryland |
| 410-288- | Landline | Dundalk | Verizon Maryland |
| 410-293- | Landline | Annapolis | Paetec Communications |
| 410-773- | Landline | Cockeysville | Verizon Maryland |
| 410-347- | Landline | Baltimore | Verizon Maryland |
| 410-771- | Landline | Cockeysville | Verizon Maryland |
| 410-868- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-376- | Landline | Mardela Springs | Verizon Maryland |
| 410-513- | Landline | Baltimore | Teleport Communications America |
| 410-278- | Landline | Aberdeen | Verizon Maryland |
| 410-626- | Landline | Annapolis | Verizon Maryland |
| 410-440- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-529- | Landline | Parkville | Verizon Maryland |
| 410-412- | Landline | Baltimore | Mci Worldcom Communications |
| 410-454- | Landline | Baltimore | Mci Worldcom Communications |
| 410-561- | Landline | Cockeysville | Verizon Maryland |
| 410-543- | Landline | Salisbury | Verizon Maryland |
| 410-563- | Landline | Baltimore | Verizon Maryland |
| 410-839- | Wireless | Towson | Usa Mobility Wireless |
| 410-856- | Landline | Cockeysville | Verizon Maryland |
| 410-314- | Landline | Baltimore | Mci Worldcom Communications |
| 410-742- | Landline | Salisbury | Verizon Maryland |
| 410-468- | Landline | Baltimore | Verizon Maryland |
| 410-867- | Landline | West River | Verizon Maryland |
| 410-423- | Landline | Baltimore | Teleport Communications America |
| 410-738- | Wireless | Beltsville | Verizon Maryland |
| 410-939- | Landline | Havre De Grace | Verizon Maryland |
| 410-442- | Landline | Glenwood | Verizon Maryland |
| 410-890- | Wireless | Towson | Usa Mobility Wireless |
| 410-250- | Landline | Ocean City | Verizon Maryland |
| 410-933- | Landline | Parkville | Verizon Maryland |
| 410-544- | Landline | Severna Park | Verizon Maryland |
| 410-681- | Wireless | Towson | Usa Mobility Wireless |
| 410-327- | Landline | Baltimore | Verizon Maryland |
| 410-334- | Landline | Salisbury | Verizon Maryland |
| 410-902- | Landline | Pikesville | Verizon Maryland |
| 410-270- | Wireless | Salisbury | Redi-call Communications Co |
| 410-813- | Landline | Beltsville | Verizon Maryland |
| 410-687- | Landline | Essex | Verizon Maryland |
| 410-477- | Landline | Sparrows Point | Verizon Maryland |
| 410-415- | Landline | Pikesville | Verizon Maryland |
| 410-696- | Landline | Baltimore | Mci Worldcom Communications |
| 410-699- | Wireless | Chestertown | Sprint Spectrum L.p. |
| 410-332- | Landline | Baltimore | Verizon Maryland |
| 410-388- | Landline | Sparrows Point | Verizon Maryland |
| 410-443- | Landline | Easton | Level 3 Communications |
| 410-756- | Landline | Taneytown | Verizon Maryland |
| 410-289- | Landline | Ocean City | Verizon Maryland |
| 410-352- | Landline | Bishopville | Verizon Maryland |
| 410-378- | Landline | Port Deposit | Verizon Maryland |
| 410-484- | Landline | Pikesville | Verizon Maryland |
| 410-892- | Wireless | Linthicum Heights | Verizon Maryland |
| 410-853- | Landline | Towson | Verizon Maryland |
| 410-647- | Landline | Severna Park | Verizon Maryland |
| 410-854- | Landline | Odenton | Verizon Maryland |
| 410-486- | Landline | Pikesville | Verizon Maryland |
| 410-620- | Landline | Elkton | Verizon Maryland |
| 410-604- | Landline | Stevensville | Verizon Maryland |
| 410-614- | Landline | Baltimore | Verizon Maryland |
| 410-257- | Landline | North Beach | Verizon Maryland |
| 410-970- | Landline | Sykesville | Mci Worldcom Communications |
| 410-225- | Landline | Baltimore | Verizon Maryland |
| 410-428- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-642- | Landline | Perryville | Verizon Maryland |
| 410-749- | Landline | Salisbury | Verizon Maryland |
| 410-833- | Landline | Reisterstown | Verizon Maryland |
| 410-990- | Landline | Annapolis | Verizon Maryland |
| 410-227- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-971- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-556- | Landline | Church Hill | Verizon Maryland |
| 410-497- | Landline | Baltimore | Comcast Phone Of Northern Maryland |
| 410-503- | Wireless | Elkridge | Verizon Maryland |
| 410-801- | Wireless | Baltimore | Verizon Maryland |
| 410-244- | Landline | Baltimore | Verizon Maryland |
| 410-369- | Landline | Baltimore | Tw Telecom Of Maryland LLC |
| 410-430- | Wireless | Salisbury | Cellco Partnership DBA Verizon Wireless |
| 410-945- | Landline | Baltimore | Verizon Maryland |
| 410-373- | Wireless | Towson | Usa Mobility Wireless |
| 410-306- | Landline | Aberdeen | Verizon Maryland |
| 410-858- | Landline | Annapolis | Verizon Maryland |
| 410-798- | Landline | Edgewater | Verizon Maryland |
| 410-359- | Wireless | Baltimore | Verizon Maryland |
| 410-659- | Landline | Baltimore | Verizon Maryland |
| 410-609- | Landline | Brooklyn | Verizon Maryland |
| 410-598- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-658- | Landline | Rising Sun | Armstrong Telephone Co. Of Maryland |
| 410-333- | Landline | Baltimore | Verizon Maryland |
| 410-872- | Landline | Columbia | Verizon Maryland |
| 410-230- | Landline | Baltimore | Verizon Maryland |
| 410-925- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-586- | Landline | Port Republic | Verizon Maryland |
| 410-834- | Landline | Laurel | Verizon Maryland |
| 410-489- | Landline | Glenwood | Verizon Maryland |
| 410-458- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-942- | Landline | Havre De Grace | Verizon Maryland |
| 410-800- | Landline | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-607- | Wireless | Towson | Usa Mobility Wireless |
| 410-231- | Wireless | Solomons | New Cingular Wireless PCS - DC |
| 410-330- | Wireless | Cambridge | New Cingular Wireless PCS - DC |
| 410-669- | Landline | Baltimore | Verizon Maryland |
| 410-433- | Landline | Baltimore | Verizon Maryland |
| 410-307- | Landline | Towson | Verizon Maryland |
| 410-731- | Wireless | Annapolis | Usa Mobility Wireless |
| 410-221- | Landline | Cambridge | Verizon Maryland |
| 410-602- | Landline | Pikesville | Verizon Maryland |
| 410-493- | Wireless | Baltimore | Sprint Spectrum L.p. |
| 410-983- | Landline | Fork | Verizon Maryland |
| 410-384- | Landline | Severna Park | Verizon Maryland |
| 410-271- | Wireless | Annapolis | Cellco Partnership DBA Verizon Wireless |
| 410-934- | Wireless | Annapolis | New Cingular Wireless PCS - DC |
| 410-469- | Landline | Baltimore | Verizon Maryland |
| 410-325- | Landline | Baltimore | Verizon Maryland |
| 410-913- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-450- | Landline | Baltimore | Verizon Maryland |
| 410-251- | Wireless | Salisbury | Cellco Partnership DBA Verizon Wireless |
| 410-694- | Landline | Linthicum Heights | Verizon Maryland |
| 410-243- | Landline | Baltimore | Verizon Maryland |
| 410-488- | Landline | Baltimore | Verizon Maryland |
| 410-837- | Landline | Baltimore | Verizon Maryland |
| 410-639- | Landline | Rock Hall | Verizon Maryland |
| 410-286- | Landline | North Beach | Verizon Maryland |
| 410-863- | Landline | Glen Burnie | Verizon Maryland |
| 410-297- | Landline | Aberdeen | Verizon Maryland |
| 410-964- | Landline | Columbia | Verizon Maryland |
| 410-781- | Landline | Sykesville | Verizon Maryland |
| 410-826- | Wireless | Glen Burnie | Verizon Maryland |
| 410-407- | Wireless | Elkridge | Verizon Maryland |
| 410-816- | Wireless | Towson | Verizon Maryland |
| 410-743- | Wireless | Baltimore | Usa Mobility Wireless |
| 410-500- | Landline | Baltimore | Verizon Maryland |
| 410-531- | Landline | Columbia | Verizon Maryland |
| 410-248- | Landline | Parkville | Verizon Maryland |
| 410-372- | Landline | Towson | Verizon Maryland |
| 410-287- | Landline | North East | Verizon Maryland |
| 410-379- | Landline | Elkridge | Verizon Maryland |
| 410-310- | Wireless | Easton | Cellco Partnership DBA Verizon Wireless |
| 410-820- | Landline | Easton | Verizon Maryland |
| 410-342- | Landline | Baltimore | Verizon Maryland |
| 410-351- | Wireless | Baltimore | Usa Mobility Wireless |
| 410-899- | Wireless | Towson | Usa Mobility Wireless |
| 410-249- | Wireless | Towson | Verizon Maryland |
| 410-905- | Wireless | Baltimore | Sprint Spectrum L.p. |
| 410-645- | Landline | Baltimore | Mci Worldcom Communications |
| 410-932- | Wireless | Elkridge | Usa Mobility Wireless |
| 410-447- | Wireless | Columbia | Usa Mobility Wireless |
| 410-480- | Landline | Ellicott City | Verizon Maryland |
| 410-269- | Landline | Annapolis | Verizon Maryland |
| 410-523- | Landline | Baltimore | Verizon Maryland |
| 410-630- | Landline | Baltimore | Mci Worldcom Communications |
| 410-399- | Landline | Bel Air | Verizon Maryland |
| 410-646- | Landline | Baltimore | Verizon Maryland |
| 410-514- | Landline | Severn | Verizon Maryland |
| 410-786- | Landline | Woodlawn | Verizon Maryland |
| 410-536- | Landline | Arbutus | Verizon Maryland |
| 410-643- | Landline | Stevensville | Verizon Maryland |
| 410-725- | Wireless | Easton | Sprint Spectrum L.p. |
| 410-841- | Landline | Annapolis | Verizon Maryland |
| 410-301- | Wireless | Baltimore | Sprint Spectrum L.p. |
| 410-272- | Landline | Aberdeen | Verizon Maryland |
| 410-361- | Landline | Baltimore | Verizon Maryland |
| 410-667- | Landline | Cockeysville | Verizon Maryland |
| 410-860- | Landline | Salisbury | Verizon Maryland |
| 410-356- | Landline | Pikesville | Verizon Maryland |
| 410-982- | Landline | Baltimore | Quantum Telecommunications |
| 410-568- | Landline | Baltimore | Teleport Communications America |
| 410-718- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-703- | Wireless | Annapolis | Cellco Partnership DBA Verizon Wireless |
| 410-516- | Landline | Baltimore | Verizon Maryland |
| 410-615- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-370- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-920- | Wireless | Elkton | New Cingular Wireless PCS - DC |
| 410-985- | Landline | Jessup | Baltimore-washington Telephone (bwt) |
| 410-375- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-770- | Landline | Easton | Verizon Maryland |
| 410-584- | Landline | Cockeysville | Verizon Maryland |
| 410-552- | Landline | Sykesville | Verizon Maryland |
| 410-935- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-815- | Wireless | Beltsville | Verizon Maryland |
| 410-819- | Landline | Easton | Verizon Maryland |
| 410-806- | Wireless | Towson | Usa Mobility Wireless |
| 410-894- | Wireless | Towson | Usa Mobility Wireless |
| 410-767- | Landline | Baltimore | Verizon Maryland |
| 410-740- | Landline | Columbia | Verizon Maryland |
| 410-625- | Landline | Baltimore | Verizon Maryland |
| 410-916- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-216- | Landline | Annapolis | Verizon Maryland |
| 410-557- | Landline | Jarrettsville | Verizon Maryland |
| 410-632- | Landline | Snow Hill | Verizon Maryland |
| 410-769- | Landline | Towson | Verizon Maryland |
| 410-623- | Landline | Marion | Verizon Maryland |
| 410-317- | Landline | Baltimore | Mci Worldcom Communications |
| 410-589- | Landline | Brooklyn | Tw Telecom Of Maryland LLC |
| 410-648- | Landline | Galena | Verizon Maryland |
| 410-321- | Landline | Towson | Verizon Maryland |
| 410-261- | Landline | Baltimore | Verizon Maryland |
| 410-554- | Landline | Baltimore | Verizon Maryland |
| 410-508- | Landline | Glen Burnie | Verizon Maryland |
| 410-521- | Landline | Randallstown | Verizon Maryland |
| 410-252- | Landline | Towson | Verizon Maryland |
| 410-788- | Landline | Catonsville | Verizon Maryland |
| 410-575- | Landline | Aberdeen | Verizon Maryland |
| 410-355- | Landline | Baltimore | Verizon Maryland |
| 410-661- | Landline | Parkville | Verizon Maryland |
| 410-903- | Wireless | Baltimore | Sprint Spectrum L.p. |
| 410-852- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-665- | Landline | Parkville | Verizon Maryland |
| 410-445- | Wireless | Baltimore | Usa Mobility Wireless |
| 410-319- | Landline | Baltimore | Verizon Maryland |
| 410-706- | Landline | Baltimore | Verizon Maryland |
| 410-553- | Landline | Glen Burnie | Verizon Maryland |
| 410-387- | Wireless | Arbutus | Broadview Networks |
| 410-470- | Landline | Baltimore | Verizon Maryland |
| 410-273- | Landline | Aberdeen | Verizon Maryland |
| 410-419- | Wireless | Baltimore | Sprint Spectrum L.p. |
| 410-302- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-719- | Landline | Catonsville | Verizon Maryland |
| 410-368- | Landline | Baltimore | Verizon Maryland |
| 410-758- | Landline | Centreville | Verizon Maryland |
| 410-624- | Landline | Baltimore | Verizon Maryland |
| 410-254- | Landline | Baltimore | Verizon Maryland |
| 410-457- | Landline | Darlington | Verizon Maryland |
| 410-969- | Landline | Severn | Verizon Maryland |
| 410-666- | Landline | Cockeysville | Verizon Maryland |
| 410-715- | Landline | Columbia | Verizon Maryland |
| 410-353- | Wireless | Annapolis | Cellco Partnership DBA Verizon Wireless |
| 410-638- | Landline | Bel Air | Verizon Maryland |
| 410-656- | Landline | North East | Armstrong Telecommunications |
| 410-875- | Landline | Westminster | Verizon Maryland |
| 410-577- | Landline | Baltimore | Verizon Maryland |
| 410-917- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-832- | Landline | Towson | Verizon Maryland |
| 410-464- | Landline | Baltimore | Verizon Maryland |
| 410-730- | Landline | Columbia | Verizon Maryland |
| 410-870- | Landline | Parkville | Comcast Phone Of Northern Maryland |
| 410-851- | Wireless | Towson | Verizon Maryland |
| 410-235- | Landline | Baltimore | Verizon Maryland |
| 410-382- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-456- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-887- | Landline | Towson | Verizon Maryland |
| 410-215- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-386- | Landline | Westminster | Verizon Maryland |
| 410-753- | Landline | Baltimore | Mci Worldcom Communications |
| 410-396- | Landline | Baltimore | Verizon Maryland |
| 410-498- | Landline | Baltimore | Cavalier Telephone Mid-atlantic |
| 410-997- | Landline | Columbia | Verizon Maryland |
| 410-919- | Landline | Annapolis | Mci Worldcom Communications |
| 410-926- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-566- | Landline | Baltimore | Verizon Maryland |
| 410-918- | Landline | Essex | Verizon Maryland |
| 410-726- | Wireless | Salisbury | Cellco Partnership DBA Verizon Wireless |
| 410-459- | Wireless | Fallston | Cellco Partnership DBA Verizon Wireless |
| 410-710- | Wireless | Baltimore | Omnipoint Communications Cap Operations |
| 410-693- | Wireless | Annapolis | New Cingular Wireless PCS - DC |
| 410-775- | Landline | Union Bridge | Verizon Maryland |
| 410-425- | Landline | Ewell | Verizon Maryland |
| 410-961- | Wireless | Baltimore | Sprint Spectrum L.p. |
| 410-759- | Wireless | Baltimore | Verizon Maryland |
| 410-840- | Landline | Westminster | Verizon Maryland |
| 410-720- | Landline | Ellicott City | Verizon Maryland |
| 410-864- | Landline | Baltimore | Mci Worldcom Communications |
| 410-274- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-549- | Landline | Sykesville | Verizon Maryland |
| 410-380- | Wireless | Salisbury | Redi-call Communications Co |
| 410-672- | Landline | Odenton | Verizon Maryland |
| 410-690- | Landline | Wye Mills | AT&T Local |
| 410-739- | Wireless | Centreville | New Cingular Wireless PCS - DC |
| 410-599- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-229- | Landline | Cockeysville | Verizon Maryland |
| 410-239- | Landline | Hampstead | Verizon Maryland |
| 410-362- | Landline | Baltimore | Verizon Maryland |
| 410-420- | Landline | Bel Air | Verizon Maryland |
| 410-264- | Wireless | Laurel | Verizon Maryland |
| 410-303- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-262- | Wireless | Baltimore | Sprint Spectrum L.p. |
| 410-612- | Landline | Edgewood | Verizon Maryland |
| 410-691- | Landline | Linthicum Heights | Verizon Maryland |
| 410-746- | Wireless | Baltimore | Cellco Partnership DBA Verizon Wireless |
| 410-762- | Landline | Glen Burnie | Verizon Maryland |
| 410-732- | Landline | Baltimore | Verizon Maryland |
| 410-784- | Landline | Deal Island | Verizon Maryland |
| 410-692- | Landline | Jarrettsville | Verizon Maryland |
| 410-475- | Wireless | Towson | Usa Mobility Wireless |
| 410-390- | Landline | Ocean City | Teleport Communications America |
| 410-893- | Landline | Bel Air | Verizon Maryland |
| 410-937- | Wireless | Fallston | Cellco Partnership DBA Verizon Wireless |
| 410-799- | Landline | Elkridge | Verizon Maryland |
| 410-398- | Landline | Elkton | Verizon Maryland |
| 410-438- | Landline | Barclay | Verizon Maryland |
| 410-284- | Landline | Dundalk | Verizon Maryland |
| 410-744- | Landline | Catonsville | Verizon Maryland |
| 410-483- | Landline | Baltimore | Verizon Maryland |
| 410-219- | Landline | Salisbury | Verizon Maryland |
| 410-695- | Landline | Odenton | Verizon Maryland |
| 410-596- | Wireless | Westminster | Cellco Partnership DBA Verizon Wireless |
| 410-210- | Wireless | Salisbury | Aquis Communications |
| 410-634- | Landline | Ridgely | Verizon Maryland |
| 410-683- | Landline | Cockeysville | Verizon Maryland |
| 410-346- | Landline | Westminster | Verizon Maryland |
| 410-779- | Landline | Baltimore | Level 3 Communications |
| 410-674- | Landline | Odenton | Verizon Maryland |
| 410-702- | Landline | Reisterstown | Mci Worldcom Communications |
| 410-366- | Landline | Baltimore | Verizon Maryland |
| 410-335- | Landline | White Marsh | Verizon Maryland |
| 410-760- | Landline | Glen Burnie | Verizon Maryland |
| 410-204- | Landline | Arbutus | Verizon Maryland |
| 410-812- | Wireless | Towson | New Cingular Wireless PCS - DC |
| 410-944- | Landline | Woodlawn | Verizon Maryland |
| 410-228- | Landline | Cambridge | Verizon Maryland |
| 410-294- | Wireless | Catonsville | New Cingular Wireless PCS - DC |
| 410-348- | Landline | Still Pond | Verizon Maryland |
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