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Information about Area Code 410
Maryland comprises the red and blue area of the map; the red area is covered by area codes 410 and 443
North American area codes 410 and 443 are state of Maryland telephone area codes which serve the communities of Baltimore, North East, Rising Sun, the state capital of Annapolis, and the Eastern Shore. Area code 410 was split from area code 301 on October 6, 1991. The overlay area code, 443, was introduced on June 1, 1997.
The counties and independent city served by these area codes include:
| State of Maryland Area Codes: 240, 301, 410, 443 |
|
North: 717, 484/610/835 |
|
| West: 301/240 |
area codes 410/443 |
East: 302 |
|
South: 757 |
|
| State of Delaware Area Code: 302 |
| Commonwealth of Pennsylvania Area Codes: 215, 267, 412, 484, 570, 610, 717, 724, 814, 835, 878 |
| Commonwealth of Virginia Area Codes: 276, 434, 540, 571/703, 757, 804 |
See also
Exchanges for Area Code 410-xxx-xxxx:
Easton - MCI WORLDCOM COMMUNICATIONS, INC. - MD
ODDBALL CODES -
- NATIONSLINE, INC.-MD
Ellicott City - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
OCEAN PINES - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
SALISBURY - AQUIS COMMUNICATIONS, INC.
-
Hanover - SPRINT SPECTRUM L.P.
Ocean City - VERIZON MARYLAND, INC.
Baltimore - GEOTEK COMMUNICATIONS, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Annapolis - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
SALISBURY - VERIZON MARYLAND, INC.
-
Cambridge - VERIZON MARYLAND, INC.
Glen Burnie - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Annapolis - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
OXFORD - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Cambridge - VERIZON MARYLAND, INC.
Cockeysville - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
HUNTINGTOWN - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
- ARCH WIRELESS HOLDINGS, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Baltimore - VERIZON MARYLAND, INC.
Essex - VERIZON MARYLAND, INC.
HAMPSTEAD - VERIZON MARYLAND, INC.
-
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
- MCI WORLDCOM COMMUNICATIONS, INC. - MD
Baltimore - VERIZON MARYLAND, INC.
PERRY HALL - VERIZON MARYLAND, INC.
Towson - VERIZON MARYLAND, INC.
OCEAN CITY - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Cockeysville - VERIZON MARYLAND, INC.
EASTON - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Baltimore - VERIZON MARYLAND, INC.
ARMIGER - VERIZON MARYLAND, INC.
PERRY HALL - VERIZON MARYLAND, INC.
NORTH BEACH - VERIZON MARYLAND, INC.
Hanover - SPRINT SPECTRUM L.P.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Annapolis - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Hanover - SPRINT SPECTRUM L.P.
Annapolis - VERIZON MARYLAND, INC.
Laurel - VERIZON MARYLAND, INC.
WOODLAWN - VERIZON MARYLAND, INC.
Annapolis - VERIZON MARYLAND, INC.
Annapolis - VERIZON MARYLAND, INC.
Annapolis - VERIZON MARYLAND, INC.
Annapolis - VERIZON MARYLAND, INC.
Salisbury - REDI-CALL COMMUNICATIONS CO
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
ABERDEEN - VERIZON MARYLAND, INC.
ABERDEEN - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
CECILTON - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
WOODLAWN - VERIZON MARYLAND, INC.
ABERDEEN - VERIZON MARYLAND, INC.
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Annapolis - VERIZON MARYLAND, INC.
WOODLAWN - VERIZON MARYLAND, INC.
Dundalk - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
Dundalk - VERIZON MARYLAND, INC.
Dundalk - VERIZON MARYLAND, INC.
NORTH BEACH - VERIZON MARYLAND, INC.
North East - VERIZON MARYLAND, INC.
Dundalk - VERIZON MARYLAND, INC.
Ocean City - VERIZON MARYLAND, INC.
Columbia - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Baltimore - PAETEC COMMUNICATIONS, INC. - MD
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Annapolis - VERIZON MARYLAND, INC.
Towson - VERIZON MARYLAND, INC.
ABERDEEN - VERIZON MARYLAND, INC.
WOODLAWN - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
- SPRINT SPECTRUM L.P.
-
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
-
ODENTON - VERIZON MARYLAND, INC.
ABERDEEN - VERIZON MARYLAND, INC.
Towson - VERIZON MARYLAND, INC.
Cockeysville - VERIZON MARYLAND, INC.
Columbia - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
-
Columbia - VERIZON MARYLAND, INC.
Ellicott City - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
Severna Park - VERIZON MARYLAND, INC.
Cockeysville - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
Pikesville - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Annapolis - NEXTEL COMMUNICATIONS
Towson - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Baltimore - VERIZON MARYLAND, INC.
Towson - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
SOLOMONS - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
MANOR - VERIZON MARYLAND, INC.
EASTON - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
- ARCH WIRELESS HOLDINGS, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
SALISBURY - VERIZON MARYLAND, INC.
CHASE - VERIZON MARYLAND, INC.
Columbia - AT&T WIRELESS SERVICES, INC.
Towson - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Towson - VERIZON MARYLAND, INC.
Columbia - AT&T WIRELESS SERVICES, INC.
SALISBURY - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
PARKTON - VERIZON MARYLAND, INC.
CHASE - VERIZON MARYLAND, INC.
Owings Mills - VERIZON MARYLAND, INC.
Westminster - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
STILL POND - VERIZON MARYLAND, INC.
SAINT MARGARETS - VERIZON MARYLAND, INC.
BROOKLYN - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
BISHOP - VERIZON MARYLAND, INC.
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
BROOKLYN - VERIZON MARYLAND, INC.
BROOKLYN - VERIZON MARYLAND, INC.
Owings Mills - VERIZON MARYLAND, INC.
PARKTON - VERIZON MARYLAND, INC.
Pikesville - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
ARMIGER - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Owings Mills - VERIZON MARYLAND, INC.
HILLSBORO - VERIZON MARYLAND, INC.
Baltimore - NEXTEL COMMUNICATIONS
Baltimore - VERIZON MARYLAND, INC.
BALTIMORE - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Laurel - XSPEDIUS MANAGEMENT CO SWITCHES SERVICES, LLC - MD
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Baltimore - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
HAMPSTEAD - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
VIENNA - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
BAINBRIDGE - VERIZON MARYLAND, INC.
ELKRIDGE - VERIZON MARYLAND, INC.
Salisbury - REDI-CALL COMMUNICATIONS CO
Columbia - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Baltimore - VERIZON MARYLAND, INC.
Severna Park - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
WESTMINSTER - VERIZON MARYLAND, INC.
- METROCALL
Sparrows Point - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
Pikesville - WEBLINK WIRELESS, INC.
Essex - VERIZON MARYLAND, INC.
Elkton - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
SOLOMONS - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
HONGA - VERIZON MARYLAND, INC.
Elkton - VERIZON MARYLAND, INC.
Bel Air - VERIZON MARYLAND, INC.
Hanover -
Baltimore - MCIMETRO, ATS, INC.
Baltimore - MCIMETRO, ATS, INC.
Baltimore - MCIMETRO, ATS, INC.
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
FORK - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
ELKRIDGE - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
-
-
Baltimore - MCIMETRO, ATS, INC.
Baltimore - MCIMETRO, ATS, INC.
Prince Frederick - VERIZON MARYLAND, INC.
Pikesville - VERIZON MARYLAND, INC.
Laurel - VERIZON MARYLAND, INC.
Ellicott City - VERIZON MARYLAND, INC.
Hanover - SPRINT SPECTRUM L.P.
Bel Air - VERIZON MARYLAND, INC.
Severna Park - VERIZON MARYLAND, INC.
SALISBURY - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Baltimore - TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD
Glen Burnie - VERIZON MARYLAND, INC.
SMITH ISLAND - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Reisterstown - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Severna Park - VERIZON MARYLAND, INC.
Severna Park - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
Baltimore - VERIZON MARYLAND, INC.
EDGEWOOD - VERIZON MARYLAND, INC.
ARMIGER - VERIZON MARYLAND, INC.
SUDLERSVILLE - VERIZON MARYLAND, INC.
ARMIGER - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Elkton - COMCAST CELLULAR COMMUNICATIONS - MARYLAND
GLENWOOD - VERIZON MARYLAND, INC.
- LEVEL 3 COMMUNICATIONS, LLC - MD
Baltimore - VERIZON MARYLAND, INC.
- METROCALL
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
- ARCH WIRELESS HOLDINGS, INC.
WOODLAWN - VERIZON MARYLAND, INC.
Pikesville - WEBLINK WIRELESS, INC.
Baltimore - VERIZON MARYLAND, INC.
CROFTON - VERIZON MARYLAND, INC.
CARDIFF - VERIZON MARYLAND, INC.
Cockeysville - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
Catonsville - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
DARLINGTON - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
- ARCH WIRELESS HOLDINGS, INC.
Ellicott City - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Baltimore - VERIZON MARYLAND, INC.
Ellicott City - VERIZON MARYLAND, INC.
BALTIMORE - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
ELKRIDGE - VERIZON MARYLAND, INC.
MANOR - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
- ARCH WIRELESS HOLDINGS, INC.
TRAPPE - VERIZON MARYLAND, INC.
Sparrows Point - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
Denton - VERIZON MARYLAND, INC.
Ellicott City - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
GREENSBORO - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Pikesville - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Pikesville - VERIZON MARYLAND, INC.
- MCI WORLDCOM COMMUNICATIONS, INC. - MD
Baltimore - VERIZON MARYLAND, INC.
GLENWOOD - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
- ARCH WIRELESS HOLDINGS, INC.
Hanover - SPRINT SPECTRUM L.P.
Towson - VERIZON MARYLAND, INC.
MUTUAL - VERIZON MARYLAND, INC.
Randallstown - VERIZON MARYLAND, INC.
Baltimore - COMCAST BUSINESS COMMUNICATIONS, INC. - MD
Hanover - CAVALIER TELEPHONE MID-ATLANTIC. LLC - MD
Hanover - SPRINT SPECTRUM L.P.
Fort Washington - VERIZON MARYLAND, INC.
Baltimore - LIGHTWAVE COMMUNICATIONS, LLC - MD
Baltimore - VERIZON MARYLAND, INC.
ELKRIDGE - VERIZON MARYLAND, INC.
Owings Mills - VERIZON MARYLAND, INC.
Columbia - VERIZON MARYLAND, INC.
Elkton - VERIZON MARYLAND, INC.
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Glen Burnie - VERIZON MARYLAND, INC.
Laurel - BALTIMORE-WASHINGTON TELEPHONE BWT
Baltimore - TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD
-
Towson - VERIZON MARYLAND, INC.
Baltimore - TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD
DORRS CORNER - VERIZON MARYLAND, INC.
BEL AIR - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Reisterstown - VERIZON MARYLAND, INC.
Severna Park - VERIZON MARYLAND, INC.
ODENTON - VERIZON MARYLAND, INC.
OCEAN CITY - VERIZON MARYLAND, INC.
Randallstown - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
OCEAN CITY - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Reisterstown - VERIZON MARYLAND, INC.
Cockeysville - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
PERRY HALL - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Clarksville - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Baltimore - VERIZON MARYLAND, INC.
Prince Frederick - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
EDGEWOOD - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
ELKRIDGE - VERIZON MARYLAND, INC.
Severna Park - VERIZON MARYLAND, INC.
BALTIMORE - VERIZON MARYLAND, INC.
SALISBURY - VERIZON MARYLAND, INC.
Severna Park - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
SALISBURY - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
SALISBURY - VERIZON MARYLAND, INC.
SYKESVILLE - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
ODENTON - VERIZON MARYLAND, INC.
SYKESVILLE - VERIZON MARYLAND, INC.
Glen Burnie - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
CHURCH HILL - VERIZON MARYLAND, INC.
JARRETTSVILLE - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD
Cockeysville - VERIZON MARYLAND, INC.
Cockeysville - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Baltimore - VERIZON MARYLAND, INC.
Baltimore - TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD
Laurel - XSPEDIUS MANAGEMENT CO SWITCHES SERVICES, LLC - MD
Baltimore - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
Baltimore - TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD
BEL AIR - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Annapolis - VERIZON MARYLAND, INC.
SALISBURY - VERIZON MARYLAND, INC.
Annapolis - VERIZON MARYLAND, INC.
Essex - VERIZON MARYLAND, INC.
ABERDEEN - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Owings Mills - VERIZON MARYLAND, INC.
BALTIMORE - VERIZON MARYLAND, INC.
ELKRIDGE - VERIZON MARYLAND, INC.
Pikesville - VERIZON MARYLAND, INC.
Owings Mills - VERIZON MARYLAND, INC.
Glen Burnie - VERIZON MARYLAND, INC.
Towson - VERIZON MARYLAND, INC.
Cockeysville - VERIZON MARYLAND, INC.
Pikesville - VERIZON MARYLAND, INC.
MUTUAL - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Bel Air - VERIZON MARYLAND, INC.
Laurel - XSPEDIUS MANAGEMENT CO SWITCHES SERVICES, LLC - MD
Glen Burnie - VERIZON MARYLAND, INC.
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
FORK - VERIZON MARYLAND, INC.
FORK - VERIZON MARYLAND, INC.
WOODLAWN - VERIZON MARYLAND, INC.
Laurel - XSPEDIUS MANAGEMENT CO SWITCHES SERVICES, LLC - MD
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
WOODLAWN - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
-
BALTIMORE - VERIZON MARYLAND, INC.
Pikesville - VERIZON MARYLAND, INC.
SALISBURY - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
STEVENSVILLE - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Beltsville - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
BROOKLYN - VERIZON MARYLAND, INC.
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
-
EDGEWOOD - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
- MCI WORLDCOM COMMUNICATIONS, INC. - MD
Baltimore - VERIZON MARYLAND, INC.
Salisbury - VERIZON MARYLAND, INC.
Laurel - VERIZON MARYLAND, INC.
Elkton - VERIZON MARYLAND, INC.
PRINCESS ANNE - VERIZON MARYLAND, INC.
EASTON - METROCALL
MARION - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Annapolis - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Cockeysville - VERIZON MARYLAND, INC.
BERLIN - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
Dundalk - VERIZON MARYLAND, INC.
SNOW HILL - VERIZON MARYLAND, INC.
Dundalk - VERIZON MARYLAND, INC.
HILLSBORO - VERIZON MARYLAND, INC.
NEW WINDSOR - VERIZON MARYLAND, INC.
BROOKLYN - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Bel Air - VERIZON MARYLAND, INC.
ROCK HALL - VERIZON MARYLAND, INC.
- METROCALL
BERLIN - VERIZON MARYLAND, INC.
BAINBRIDGE - VERIZON MARYLAND, INC.
ROMANCOKE - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
- MCI WORLDCOM COMMUNICATIONS, INC. - MD
Baltimore - VERIZON MARYLAND, INC.
Severna Park - VERIZON MARYLAND, INC.
GALENA - VERIZON MARYLAND, INC.
Baltimore - TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD
Baltimore - MCIMETRO, ATS, INC.
PRINCESS ANNE - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Pikesville - VERIZON MARYLAND, INC.
Owings Mills - VERIZON MARYLAND, INC.
Randallstown - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
RISING SUN - ARMSTRONG TELEPHONE CO. OF MARYLAND
Baltimore - VERIZON MARYLAND, INC.
-
Parkville - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Parkville - VERIZON MARYLAND, INC.
BALTIMORE - VERIZON MARYLAND, INC.
Parkville - VERIZON MARYLAND, INC.
Cockeysville - VERIZON MARYLAND, INC.
Cockeysville - VERIZON MARYLAND, INC.
Parkville - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
EDGEWOOD - VERIZON MARYLAND, INC.
Odenton - VERIZON MARYLAND, INC.
PRESTON - VERIZON MARYLAND, INC.
ODENTON - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
EDGEWOOD - VERIZON MARYLAND, INC.
SALISBURY - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
EDGEWOOD - VERIZON MARYLAND, INC.
Laurel - XSPEDIUS MANAGEMENT CO SWITCHES SERVICES, LLC - MD
- ARCH WIRELESS HOLDINGS, INC.
Essex - VERIZON MARYLAND, INC.
Cockeysville - VERIZON MARYLAND, INC.
BALT WA INTL ARPT - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Essex - VERIZON MARYLAND, INC.
Essex - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Baltimore - TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD
WYE MILLS - AT&T LOCAL
BALT WA INTL ARPT - VERIZON MARYLAND, INC.
JARRETTSVILLE - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
BALT WA INTL ARPT - VERIZON MARYLAND, INC.
Odenton - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
Baltimore - MCIMETRO, ATS, INC.
Baltimore - MCIMETRO, ATS, INC.
SALISBURY - SPRINT SPECTRUM L.P.
-
Baltimore - MCIMETRO, ATS, INC.
Baltimore - MCIMETRO, ATS, INC.
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Baltimore - MCIMETRO, ATS, INC.
Beltsville - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Baltimore - MCIMETRO, ATS, INC.
Baltimore -
-
Hanover - VERIZON MARYLAND, INC.
- LEVEL 3 COMMUNICATIONS, LLC - MD
EASTON - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Columbia - VERIZON MARYLAND, INC.
Towson - VERIZON MARYLAND, INC.
Laurel - XSPEDIUS MANAGEMENT CO SWITCHES SERVICES, LLC - MD
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Catonsville - VERIZON MARYLAND, INC.
Columbia - VERIZON MARYLAND, INC.
CROFTON - VERIZON MARYLAND, INC.
Beltsville - VERIZON MARYLAND, INC.
OCEAN CITY - VERIZON MARYLAND, INC.
Laurel - VERIZON MARYLAND, INC.
SALISBURY - SPRINT SPECTRUM L.P.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
DORRS CORNER - VERIZON MARYLAND, INC.
Columbia - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
Baltimore - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
CHURCHVILLE - VERIZON MARYLAND, INC.
Baltimore - CAVALIER EAST LLC - MD
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Beltsville - VERIZON MARYLAND, INC.
EASTON - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Columbia - VERIZON MARYLAND, INC.
UPPER MARLBORO - VERIZON MARYLAND, INC.
SALISBURY - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
Catonsville - VERIZON MARYLAND, INC.
SAINT MICHAELS - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Catonsville - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
SALISBURY - VERIZON MARYLAND, INC.
Ellicott City - VERIZON MARYLAND, INC.
WESTMINSTER - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
- MCI WORLDCOM COMMUNICATIONS, INC. - MD
Federalsburg - VERIZON MARYLAND, INC.
CECILTON - VERIZON MARYLAND, INC.
TANEYTOWN - VERIZON MARYLAND, INC.
SAINT MARGARETS - VERIZON MARYLAND, INC.
CENTREVILLE - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Glen Burnie - VERIZON MARYLAND, INC.
Glen Burnie - VERIZON MARYLAND, INC.
Glen Burnie - VERIZON MARYLAND, INC.
Easton - VERIZON MARYLAND, INC.
Pikesville - VERIZON MARYLAND, INC.
BALT WA INTL ARPT - VERIZON MARYLAND, INC.
Glen Burnie - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Glen Burnie - VERIZON MARYLAND, INC.
Towson - VERIZON MARYLAND, INC.
Easton - VERIZON MARYLAND, INC.
MANOR - VERIZON MARYLAND, INC.
Columbia - VERIZON MARYLAND, INC.
Cockeysville - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
UNION BRIDGE - VERIZON MARYLAND, INC.
Baltimore - TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD
Baltimore - MCIMETRO, ATS, INC.
Chestertown - VERIZON MARYLAND, INC.
Baltimore - WINSTAR COMMUNICATIONS, LLC - MD
Essex - VERIZON MARYLAND, INC.
SYKESVILLE - VERIZON MARYLAND, INC.
Hanover - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
DEAL ISLAND - VERIZON MARYLAND, INC.
Cockeysville - VERIZON MARYLAND, INC.
WOODLAWN - VERIZON MARYLAND, INC.
Glen Burnie - VERIZON MARYLAND, INC.
Catonsville - VERIZON MARYLAND, INC.
BROOKLYN - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Beltsville - VERIZON MARYLAND, INC.
Laurel - VERIZON MARYLAND, INC.
CROFTON - VERIZON MARYLAND, INC.
Laurel - XSPEDIUS MANAGEMENT CO SWITCHES SERVICES, LLC - MD
SYKESVILLE - VERIZON MARYLAND, INC.
ELKRIDGE - VERIZON MARYLAND, INC.
Laurel - VERIZON MARYLAND, INC.
MAYO - VERIZON MARYLAND, INC.
ELKRIDGE - VERIZON MARYLAND, INC.
Baltimore - NATIONSLINE, INC.-MD
Baltimore - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Bel Air - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Towson - TRI-STATE RADIO PAGING - MARYLAND
- ARCH WIRELESS HOLDINGS, INC.
Laurel - XSPEDIUS MANAGEMENT CO SWITCHES SERVICES, LLC - MD
Baltimore - NEXTEL COMMUNICATIONS
Bel Air - CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD
Chestertown - VERIZON MARYLAND, INC.
-
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Beltsville - VERIZON MARYLAND, INC.
Hanover -
Beltsville - VERIZON MARYLAND, INC.
Towson - VERIZON MARYLAND, INC.
FORK - VERIZON MARYLAND, INC.
Baltimore - TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD
Easton - VERIZON MARYLAND, INC.
Easton - VERIZON MARYLAND, INC.
Towson - VERIZON MARYLAND, INC.
Easton - VERIZON MARYLAND, INC.
Towson - VERIZON MARYLAND, INC.
Laurel - XSPEDIUS MANAGEMENT CO SWITCHES SERVICES, LLC - MD
Towson - VERIZON MARYLAND, INC.
Glen Burnie - VERIZON MARYLAND, INC.
QUEENSTOWN - VERIZON MARYLAND, INC.
Towson - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Towson - VERIZON MARYLAND, INC.
Salisbury - VERIZON MARYLAND, INC.
Towson - VERIZON MARYLAND, INC.
Reisterstown - VERIZON MARYLAND, INC.
Laurel - VERIZON MARYLAND, INC.
WILLARDS - VERIZON MARYLAND, INC.
Bel Air - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Bel Air - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
WESTMINSTER - VERIZON MARYLAND, INC.
Annapolis - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
Baltimore - TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD
Baltimore - VERIZON MARYLAND, INC.
SALISBURY - SPRINT SPECTRUM L.P.
Baltimore - MCIMETRO, ATS, INC.
Towson - VERIZON MARYLAND, INC.
WESTMINSTER - VERIZON MARYLAND, INC.
Annapolis - VERIZON MARYLAND, INC.
BALT WA INTL ARPT - VERIZON MARYLAND, INC.
Towson - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Towson - VERIZON MARYLAND, INC.
ODENTON - VERIZON MARYLAND, INC.
BALT WA INTL ARPT - VERIZON MARYLAND, INC.
Cockeysville - VERIZON MARYLAND, INC.
WESTMINSTER - VERIZON MARYLAND, INC.
Annapolis - VERIZON MARYLAND, INC.
BALT WA INTL ARPT - VERIZON MARYLAND, INC.
SALISBURY - VERIZON MARYLAND, INC.
Reisterstown - VERIZON MARYLAND, INC.
Laurel - VERIZON MARYLAND, INC.
Glen Burnie - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
BALT WA INTL ARPT - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
GALESVILLE - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Catonsville - VERIZON MARYLAND, INC.
- COMCAST PHONE OF NORTHERN MARYLAND, INC. - MD
WESTMINSTER - VERIZON MARYLAND, INC.
Columbia - VERIZON MARYLAND, INC.
NANTICOKE - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
WESTMINSTER - VERIZON MARYLAND, INC.
WESTMINSTER - VERIZON MARYLAND, INC.
Bel Air - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
CHURCHVILLE - VERIZON MARYLAND, INC.
Laurel - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
Parkville - VERIZON MARYLAND, INC.
SHARPTOWN - VERIZON MARYLAND, INC.
Columbia - VERIZON MARYLAND, INC.
CHESAPEAKE CITY - VERIZON MARYLAND, INC.
TILGHMAN - VERIZON MARYLAND, INC.
Towson - VERIZON MARYLAND, INC.
Laurel - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
- MCI WORLDCOM COMMUNICATIONS, INC. - MD
BALT WA INTL ARPT - VERIZON MARYLAND, INC.
Bel Air - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
Baltimore - VERIZON MARYLAND, INC.
Delmar - VERIZON MARYLAND, INC.
Annapolis - VERIZON MARYLAND, INC.
Beltsville - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
Baltimore - CTC COMMUNICATIONS - MD
Cambridge - VERIZON MARYLAND, INC.
Owings Mills - VERIZON MARYLAND, INC.
Hanover - SPRINT SPECTRUM L.P.
Baltimore - MCIMETRO, ATS, INC.
Hanover - SPRINT SPECTRUM L.P.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
Hanover - SPRINT SPECTRUM L.P.
- ARCH WIRELESS HOLDINGS, INC.
Bel Air - MCIMETRO, ATS, INC.
-
SALISBURY - CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Bel Air - CAVALIER TELEPHONE, LLC (MID-ATLANTIC) - MD
Laurel - PAETEC COMMUNICATIONS, INC. - MD
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Essex - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
Elkton - COMCAST CELLULAR COMMUNICATIONS - MARYLAND
Laurel - XSPEDIUS MANAGEMENT CO SWITCHES SERVICES, LLC - MD
Randallstown - VERIZON MARYLAND, INC.
DORRS CORNER - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Columbia - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Laurel - XSPEDIUS MANAGEMENT CO SWITCHES SERVICES, LLC - MD
MILLINGTON - VERIZON MARYLAND, INC.
Cockeysville - VERIZON MARYLAND, INC.
Laurel - R. F. COMMUNICATIONS
WHITE MARSH - VERIZON MARYLAND, INC.
- ARCH WIRELESS HOLDINGS, INC.
WHITE MARSH - VERIZON MARYLAND, INC.
Laurel - VERIZON MARYLAND, INC.
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Baltimore - VERIZON MARYLAND, INC.
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Towson - VERIZON MARYLAND, INC.
Havre De Grace - VERIZON MARYLAND, INC.
Baltimore - ATX TELECOMMUNICATIONS SERVICES, LTD
JARRETTSVILLE - VERIZON MARYLAND, INC.
Havre De Grace - VERIZON MARYLAND, INC.
HURLOCK - VERIZON MARYLAND, INC.
WOODLAWN - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Annapolis - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Baltimore - MCIMETRO, ATS, INC.
-
Baltimore - TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD
- CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Columbia - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
Baltimore - VERIZON MARYLAND, INC.
MAYO - VERIZON MARYLAND, INC.
POCOMOKE CITY - VERIZON MARYLAND, INC.
-
-
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Hanover - SPRINT SPECTRUM L.P.
Baltimore - VERIZON MARYLAND, INC.
Hanover - SPRINT SPECTRUM L.P.
Columbia - VERIZON MARYLAND, INC.
WOODLAWN - VERIZON MARYLAND, INC.
WOODLAWN - VERIZON MARYLAND, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Crisfield - VERIZON MARYLAND, INC.
Glen Burnie - VERIZON MARYLAND, INC.
Baltimore - MCIMETRO, ATS, INC.
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Baltimore - TELEPORT COMMUNICATIONS GROUP AMERICA, INC. - MD
- AQUIS COMMUNICATIONS, INC.
Annapolis - VERIZON MARYLAND, INC.
Severna Park - VERIZON MARYLAND, INC.
Laurel - BALTIMORE-WASHINGTON TELEPHONE BWT
Baltimore - NEXTEL COMMUNICATIONS
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Hanover - SOUTHWESTERN BELL MOBILE SYSTEMS, LLC - DC
Baltimore - GLOBAL NAPS, INC.
BALT WA INTL ARPT - VERIZON MARYLAND, INC.
Baltimore - QUANTUM TELECOMMUNICATIONS, INC. - MD
CARDIFF - VERIZON MARYLAND, INC.
Baltimore - NEXTEL COMMUNICATIONS
Laurel - BALTIMORE-WASHINGTON TELEPHONE BWT
Baltimore - VERIZON MARYLAND, INC.
DORRS CORNER - VERIZON MARYLAND, INC.
Clarksville - VERIZON MARYLAND, INC.
CHURCHVILLE - VERIZON MARYLAND, INC.
Annapolis - VERIZON MARYLAND, INC.
Windsor Mill - CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MD
Ellicott City - VERIZON MARYLAND, INC.
BALT WA INTL ARPT - VERIZON MARYLAND, INC.
ABERDEEN - VERIZON MARYLAND, INC.
Columbia - VERIZON MARYLAND, INC.
Elkton - VERIZON MARYLAND, INC.
Columbia - VERIZON MARYLAND, INC.
Owings Mills - VERIZON MARYLAND, INC.
Laurel - BALTIMORE-WASHINGTON TELEPHONE BWT
