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Area Codes > 410 > Central Office Codes

Exchange Rate Center State Operating Company
410-300 ELKRIDGE MD SPRINT SPECTRUM L.P.
410-301 MD
410-302 CATONSVL MD NEW CINGULAR WIRELESS PCS, LLC - DC
410-303 BALTIMORE MD CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
410-304 QUEENSTOWN MD IDT AMERICA, CORP. - MD
410-305 ODENTON MD VERIZON MARYLAND, INC.
410-306 ABERDEEN MD VERIZON MARYLAND, INC.
410-307 TOWSON MD VERIZON MARYLAND, INC.
410-308 TOWSON MD VERIZON MARYLAND, INC.
410-309 COLUMBIA MD VERIZON MARYLAND, INC.
410-310 EASTON MD CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
410-311 MD
410-312 COLUMBIA MD VERIZON MARYLAND, INC.
410-313 ELLICOTTCY MD VERIZON MARYLAND, INC.
410-314 ARBUTUS MD MCIMETRO, ATS, INC.
410-315 SEVERNA PK MD VERIZON MARYLAND, INC.
410-316 COCKEYSVL MD VERIZON MARYLAND, INC.
410-317 ARGRGBSNIS MD MCIMETRO, ATS, INC.
410-318 BALTIMORE MD VERIZON MARYLAND, INC.
410-319 BALTIMORE MD VERIZON MARYLAND, INC.
410-320 ANNAPOLIS MD NEXTEL COMMUNICATIONS, INC.
410-321 TOWSON MD VERIZON MARYLAND, INC.
410-322 BEL AIR MD NEW CINGULAR WIRELESS PCS, LLC - DC
410-323 BALTIMORE MD VERIZON MARYLAND, INC.
410-324 TOWSON MD VERIZON MARYLAND, INC.
410-325 BALTIMORE MD VERIZON MARYLAND, INC.
410-326 SOLOMONS MD VERIZON MARYLAND, INC.
410-327 BALTIMORE MD VERIZON MARYLAND, INC.
410-328 BALTIMORE MD VERIZON MARYLAND, INC.
410-329 COCKEYSVL MD VERIZON MARYLAND, INC.
410-330 CAMBRIDGE MD NEW CINGULAR WIRELESS PCS, LLC - DC
410-331 ELKRIDGE MD ARCH WIRELESS HOLDINGS, INC.
410-332 BALTIMORE MD VERIZON MARYLAND, INC.
410-333 BALTIMORE MD VERIZON MARYLAND, INC.
410-334 SALISBURY MD VERIZON MARYLAND, INC.
410-335 CHASE MD VERIZON MARYLAND, INC.
410-336 BALTIMORE MD NEW CINGULAR WIRELESS PCS, LLC - DC
410-337 TOWSON MD VERIZON MARYLAND, INC.
410-338 BALTIMORE MD VERIZON MARYLAND, INC.
410-339 TOWSON MD VERIZON MARYLAND, INC.
410-340 BALTIMORE MD NEW CINGULAR WIRELESS PCS, LLC - DC
410-341 SALISBURY MD VERIZON MARYLAND, INC.
410-342 BALTIMORE MD VERIZON MARYLAND, INC.
410-343 SPARKSGLNC MD VERIZON MARYLAND, INC.
410-344 CHASE MD VERIZON MARYLAND, INC.
410-345 PIKESVILLE MD VERIZON MARYLAND, INC.
410-346 SILVER RUN MD VERIZON MARYLAND, INC.
410-347 BALTIMORE MD VERIZON MARYLAND, INC.
410-348 STILL POND MD VERIZON MARYLAND, INC.
410-349 ANNAPOLIS MD VERIZON MARYLAND, INC.
410-350 BALTIMORE MD VERIZON MARYLAND, INC.
410-351 BALTIMORE MD ARCH WIRELESS HOLDINGS, INC.
410-352 BISHOPVL MD VERIZON MARYLAND, INC.
410-353 ANNAPOLIS MD CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
410-354 BALTIMORE MD VERIZON MARYLAND, INC.
410-355 BALTIMORE MD VERIZON MARYLAND, INC.
410-356 PIKESVILLE MD VERIZON MARYLAND, INC.
410-357 PARKTON MD VERIZON MARYLAND, INC.
410-358 BALTIMORE MD VERIZON MARYLAND, INC.
410-359 BALTIMORE MD VERIZON MARYLAND, INC.
410-360 ARGRGBSNIS MD VERIZON MARYLAND, INC.
410-361 BALTIMORE MD VERIZON MARYLAND, INC.
410-362 BALTIMORE MD VERIZON MARYLAND, INC.
410-363 PIKESVILLE MD VERIZON MARYLAND, INC.
410-364 HILLSBORO MD VERIZON MARYLAND, INC.
410-365 BALTIMORE MD NEXTEL COMMUNICATIONS, INC.
410-366 BALTIMORE MD VERIZON MARYLAND, INC.
410-367 BALTIMORE MD VERIZON MARYLAND, INC.
410-368 BALTIMORE MD VERIZON MARYLAND, INC.
410-369 BALTIMORE MD XSPEDIUS MANAGEMENT CO SWITCHES SERVICES, LLC - MD
410-370 CATONSVL MD NEW CINGULAR WIRELESS PCS, LLC - DC
410-371 BALTIMORE MD CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
410-372 TOWSON MD VERIZON MARYLAND, INC.
410-373 TOWSON MD ARCH WIRELESS HOLDINGS, INC.
410-374 HAMPSTEAD MD VERIZON MARYLAND, INC.
410-375 BALTIMORE MD CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
410-376 VIENNA MD VERIZON MARYLAND, INC.
410-377 TOWSON MD VERIZON MARYLAND, INC.
410-378 PT DEPOSIT MD VERIZON MARYLAND, INC.
410-379 ELKRIDGE MD VERIZON MARYLAND, INC.
410-380 SALISBURY MD REDI-CALL COMMUNICATIONS CO
410-381 COLUMBIA MD VERIZON MARYLAND, INC.
410-382 BALTIMORE MD CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
410-383 BALTIMORE MD VERIZON MARYLAND, INC.
410-384 SEVERNA PK MD VERIZON MARYLAND, INC.
410-385 BALTIMORE MD VERIZON MARYLAND, INC.
410-386 WESTMINSTR MD VERIZON MARYLAND, INC.
410-387 ARBUTUS MD ARCH WIRELESS HOLDINGS, INC.
410-388 SPARROWSPT MD VERIZON MARYLAND, INC.
410-389 BALTIMORE MD ARCH WIRELESS HOLDINGS, INC.
410-390 BALTIMORE MD ARCH WIRELESS HOLDINGS, INC.
410-391 ESSEX MD VERIZON MARYLAND, INC.
410-392 ELKTON MD VERIZON MARYLAND, INC.
410-393 BALTIMORE MD VERIZON MARYLAND, INC.
410-394 SOLOMONS MD VERIZON MARYLAND, INC.
410-395 ARBUTUS MD VERIZON MARYLAND, INC.
410-396 BALTIMORE MD VERIZON MARYLAND, INC.
410-397 WINGATE MD VERIZON MARYLAND, INC.
410-398 ELKTON MD VERIZON MARYLAND, INC.
410-399 BEL AIR MD VERIZON MARYLAND, INC.