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443 Area Code

State: Maryland
Major City: Baltimore
Timezone: Eastern
Current Time: 12:24pm
Short URL: allareacodes.com/443

Area Code 443 Map

Where is area code 443?

Area code 443 is located in eastern Maryland and covers Baltimore, Columbia, Glen Burnie, Ellicott City, and Dundalk. It is an overlay for area code 410 and serves the same area.

What time zone is area code 443?

The 443 area code is located in the Eastern timezone. The Eastern time zone is also known as America/New_York. As of the last time this page was loaded, the current time is 12:24pm.

History

443 was first put in service June 1, 1997. It was created from area code 410. In 2012, area code 667 was created from 443.

Nearby Area Codes

202 (District of Columbia)
223/717 (Lancaster, PA)
240/301 (Germantown, MD)
302 (Delaware)
410/443/667 (Baltimore, MD)
434 (Lynchburg, VA)
484/610 (Allentown, PA)
540 (Roanoke, VA)
571/703 (Arlington, VA)
757 (Virginia Beach, VA)
804 (Richmond, VA)
814 (Erie, PA)
856 (Camden, NJ)

Top 16 Counties in Area Code 443

CountyTotal Population% of 443% of County
Baltimore, MD805,0299%100%
Baltimore, MD620,9611%100%
Anne Arundel, MD537,6567%93%
Harford, MD244,8267%100%
Howard, MD287,0853%76%
Carroll, MD167,1346%96%
Cecil, MD101,1086%100%
Wicomico, MD98,7335%100%
Calvert, MD88,7374%92%
Queen Anne's, MD47,7987%100%
Worcester, MD51,4548%84%
Talbot, MD37,7826%100%
Caroline, MD33,0664%100%
Dorchester, MD32,61811%87%
Somerset, MD26,4708%100%
Kent, MD20,1976%100%

Top 50 Cities in Area Code 443

CityTotal Population% of 443% of City
Baltimore, MD620,9611%100%
Columbia, MD99,6150%93%
Glen Burnie, MD67,6390%100%
Ellicott City, MD65,8340%100%
Dundalk, MD63,5970%100%
Towson, MD55,1970%100%
Bel Air South, MD47,7090%100%
Severn, MD44,2310%100%
Catonsville, MD41,5670%100%
Essex, MD39,2620%100%
Annapolis, MD38,3940%100%
Woodlawn, MD37,8790%100%
Severna Park, MD37,6340%100%
Odenton, MD37,1320%100%
Randallstown, MD32,4300%100%
Pikesville, MD30,7640%100%
Parkville, MD30,7340%100%
Owings Mills, MD30,6220%100%
Bel Air North, MD30,5680%100%
Eldersburg, MD30,5311%100%
Salisbury, MD30,3430%100%
Carney, MD29,9410%100%
Milford Mill, MD29,0420%100%
Perry Hall, MD28,4740%100%
Crofton, MD27,3480%100%
Reisterstown, MD25,9680%100%
Edgewood, MD25,5620%100%
Lochearn, MD25,3330%100%
Middle River, MD25,1910%100%
Pasadena, MD24,2870%100%
Ilchester, MD23,4760%100%
Arnold, MD23,1060%100%
Cockeysville, MD20,7760%100%
Arbutus, MD20,4830%100%
Lake Shore, MD19,4770%100%
Rosedale, MD19,2570%100%
Westminster, MD18,5900%100%
Ferndale, MD16,7460%100%
Easton, MD15,9450%100%
Parole, MD15,9220%100%
Elkridge, MD15,5930%100%
Elkton, MD15,4430%100%
Rossville, MD15,1470%100%
Aberdeen, MD14,9590%100%
Brooklyn Park, MD14,3730%100%
Havre de Grace, MD12,9520%100%
Riviera Beach, MD12,6770%100%
Joppatowne, MD12,6160%100%
Cambridge, MD12,3260%100%
Overlea, MD12,2750%100%

Largest Telephone Carriers

Landline

Prefixes Carrier
7%Verizon
7%Cavalier Telephone Mid-atlantic
6%Global Crossing Local Services
5%Xo
5%Teleport America
4%Ctc
3%Level 3
26%Other

Wireless

Prefixes Carrier
14%Verizon Wireless
9%Sprint
6%Cingular
4%Omnipoint Cap Operations
2%Cricket Comm
1%Halo Wireless Services
1%Us Lec
1%Other

Prefixes

Assigned

Usage


Prefix
Usage
Primary City
Carrier
Introduced
(443) 200-
Baltimore
Allegiance Telecom
02/21/2001
(443) 201-
Westminster
Cellco Partnership DBA Verizon Wireless
12/01/2011
(443) 202-
Baltimore
Cellco Partnership DBA Verizon Wireless
01/09/2012
(443) 203-
West River
Verizon Maryland
03/03/2001
(443) 204-
Pikesville
New Cingular Wireless PCS - DC
05/15/2003
(443) 205-
Cambridge
Sprint Spectrum
01/20/2004
(443) 206-
Perryville
Cellco Partnership DBA Verizon Wireless
01/14/2000
(443) 207-
Elkton
Omnipoint Communications Enterprises,
08/14/1998
(443) 208-
Essex
Sprint Spectrum
02/01/2011
(443) 209-
Havre De Grace
Cavalier Telephone (mid-atlantic)
02/27/1999
(443) 210-
Aberdeen
Sprint Spectrum
09/30/2011
(443) 212-
Sparks Glencoe
Us Lec Of Maryland
08/14/1998
(443) 213-
Baltimore
Verizon Maryland
05/18/1998
(443) 214-
Annapolis
New Cingular Wireless PCS - DC
10/11/2011
(443) 215-
Chestertown
Core Communications
01/14/2000
(443) 216-
Dundalk
Cavalier Telephone Mid-atlantic
10/13/1999
(443) 217-
Annapolis
Core Communications
01/14/2000
(443) 218-
Reisterstown
Global Crossing Local Services-md
07/22/1999
(443) 219-
Baltimore
Level 3 Communications
05/18/1998
(443) 220-
Baltimore
Verizon Maryland
11/20/1998
(443) 221-
Annapolis
Level 3 Communications
08/20/2000
(443) 222-
Reisterstown
Xo Maryland
01/14/2000
(443) 223-
Annapolis
Cellco Partnership DBA Verizon Wireless
10/13/1999
(443) 224-
Baltimore
Mci Worldcom Communications
05/10/1999
(443) 225-
Cambridge
Sprint Spectrum
01/20/2004
(443) 226-
Baltimore
Sprint Spectrum
08/14/1998
(443) 227-
Port Deposit
Ctc Communications Corp.
01/14/2000
(443) 228-
Middle River
Us Lec Of Maryland
06/30/2001
(443) 229-
Severna Park
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 230-
Odenton
Ctc Communications Corp.
01/14/2000
(443) 231-
Baltimore
AT&T Local
08/14/1998
(443) 232-
Willards
Cavalier Telephone (mid-atlantic)
11/20/1998
(443) 233-
Mardela Springs
Cavalier Telephone (mid-atlantic)
11/20/1998
(443) 234-
Snow Hill
Cavalier Telephone (mid-atlantic)
11/20/1998
(443) 235-
Salisbury
Cellco Partnership DBA Verizon Wireless
10/13/1999
(443) 236-
Cardiff
Core Communications
01/14/2000
(443) 237-
North Beach
Core Communications
01/14/2000
(443) 238-
Parkton
Ctc Communications Corp.
01/14/2000
(443) 239-
Easton
New Cingular Wireless PCS - DC
01/20/2004
(443) 240-
Baltimore
New Cingular Wireless PCS - DC
01/27/2012
(443) 241-
Westminster
Global Naps South
01/14/2000
(443) 242-
Sparrows Point
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 243-
Fallston
Cellco Partnership DBA Verizon Wireless
10/13/1999
(443) 244-
Westminster
Level 3 Communications
10/13/1999
(443) 245-
Elkton
Cavalier Telephone (mid-atlantic)
02/27/1999
(443) 246-
Elkton
Core Communications
01/14/2000
(443) 247-
Union Bridge
Ctc Communications Corp.
01/14/2000
(443) 248-
Catonsville
Cellco Partnership DBA Verizon Wireless
01/15/2007
(443) 249-
Stevensville
Verizon Maryland
07/22/1999
(443) 250-
Baltimore
Sprint Spectrum
08/14/1998
(443) 251-
Chestertown
Local Access LLC
08/16/2013
(443) 252-
Perryville
Cellco Partnership DBA Verizon Wireless
09/08/2009
(443) 253-
Baltimore
New Cingular Wireless PCS - DC
08/14/1998
(443) 254-
Annapolis
Omnipoint Communications Cap Operations
06/13/2000
(443) 255-
Baltimore
New Cingular Wireless PCS - DC
07/22/1999
(443) 256-
North East
Ctc Communications Corp.
01/14/2000
(443) 257-
Baltimore
Cellco Partnership DBA Verizon Wireless
08/14/1998
(443) 258-
Easton
New Cingular Wireless PCS - DC
07/22/1999
(443) 259-
Columbia
Verizon Maryland
08/14/1998
(443) 260-
Salisbury
Verizon Maryland
07/22/1999
(443) 261-
Severna Park
Mci Worldcom Communications
06/13/2000
(443) 262-
Centreville
Verizon Maryland
01/14/2000
(443) 263-
Baltimore
Verizon Maryland
07/22/1999
(443) 264-
Pikesville
Xo Maryland
01/14/2000
(443) 265-
Fork
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 266-
Glenwood
Global Crossing Local Services-md
07/22/1999
(443) 267-
Darlington
Teleport Communications America
02/27/1999
(443) 268-
Baltimore
Core Communications
01/14/2000
(443) 269-
Towson
Xo Maryland
01/14/2000
(443) 270-
Baltimore
Paetec Communications
10/13/1999
(443) 271-
Baltimore
Sprint Spectrum
10/21/2002
(443) 272-
Baltimore
Teleport Communications America
08/14/1998
(443) 273-
Reisterstown
Teleport Communications America
08/14/1998
(443) 274-
Severn
Verizon Maryland
10/13/1999
(443) 275-
Baltimore
Comcast Phone Of Northern Maryland
05/18/1998
(443) 276-
Baltimore
Allegiance Telecom
06/13/2000
(443) 277-
Sykesville
Sprint Spectrum
07/22/1999
(443) 278-
Baltimore
Vdl DBA Global Telecom Brokers
10/02/2003
(443) 279-
Baltimore
Allegiance Telecom
10/13/1999
(443) 280-
Sykesville
New Cingular Wireless PCS - DC
08/14/1998
(443) 281-
Baltimore
Allegiance Telecom
06/13/2000
(443) 282-
Chestertown
Sprint Spectrum
10/04/2004
(443) 283-
Baltimore
Paetec Communications
10/13/1999
(443) 284-
Jessup
Xo Maryland
01/14/2000
(443) 285-
Columbia
Verizon Maryland
10/13/1999
(443) 286-
Baltimore
Cellco Partnership DBA Verizon Wireless
08/14/1998
(443) 287-
Baltimore
Verizon Maryland
07/22/1999
(443) 288-
Baltimore
Allegiance Telecom
06/13/2000
(443) 289-
Westminster
Mci Worldcom Communications
05/16/2011
(443) 290-
Parkville
Tw Telecom Of Maryland LLC
10/13/1999
(443) 291-
Hampstead
Global Crossing Local Services-md
07/22/1999
(443) 292-
Laurel
Level 3 Communications
10/13/1999
(443) 293-
Westminster
Global Crossing Local Services-md
07/22/1999
(443) 294-
West River
Global Crossing Local Services-md
07/22/1999
(443) 295-
Prince Frederick
Level 3 Communications
10/13/1999
(443) 296-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 297-
Arbutus
Teleport Communications America
08/14/1998
(443) 298-
Easton
New Cingular Wireless PCS - DC
11/15/2002
(443) 299-
Fallston
Global Crossing Local Services-md
07/22/1999
(443) 300-
Sykesville
Broadwing Communications. LLC
08/20/2000
(443) 301-
Baltimore
New Cingular Wireless PCS - DC
04/05/2012
(443) 302-
Crofton
Global Crossing Local Services-md
07/22/1999
(443) 303-
Aberdeen
Global Crossing Local Services-md
07/22/1999
(443) 304-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 305-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 306-
Baltimore
Sprint Spectrum
08/14/1998
(443) 307-
Bel Air
Global Crossing Local Services-md
07/22/1999
(443) 308-
Baltimore
Allegiance Telecom
06/13/2000
(443) 309-
Elkton
Sprint Spectrum
11/20/1998
(443) 310-
Baltimore
New Cingular Wireless PCS - DC
10/31/2000
(443) 312-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 313-
Fork
Global Crossing Local Services-md
07/22/1999
(443) 314-
Baltimore
Sprint Spectrum
02/01/2011
(443) 315-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 316-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 317-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 318-
Cockeysville
Cavalier Telephone (mid-atlantic)
11/20/1998
(443) 319-
Columbia
Cavalier Telephone (mid-atlantic)
11/20/1998
(443) 320-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 321-
Annapolis
Paetec Communications
06/13/2000
(443) 322-
Towson
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 323-
Rhodesdale
Cavalier Telephone (mid-atlantic)
11/20/1998
(443) 324-
Baltimore
Sprint Spectrum
07/22/1999
(443) 325-
Ellicott City
Cavalier Telephone Mid-atlantic
11/20/1998
(443) 326-
Baltimore
New Cingular Wireless PCS - DC
02/21/2001
(443) 327-
Aberdeen
Cavalier Telephone Mid-atlantic
03/03/2001
(443) 328-
Sykesville
Ctc Communications Corp.
01/14/2000
(443) 329-
Jessup
Global Crossing Local Services-md
02/27/1999
(443) 330-
Baltimore
Cavalier Telephone Mid-atlantic
05/18/1998
(443) 331-
Taneytown
Ctc Communications Corp.
01/14/2000
(443) 332-
Crofton
Cavalier Telephone Mid-atlantic
05/09/2001
(443) 333-
Annapolis
Leap Wireless Intl DBA Cricket Comm
02/13/2009
(443) 334-
Towson
Allegiance Telecom
03/14/2001
(443) 335-
Brooklyn
Xo Maryland
01/14/2000
(443) 336-
Annapolis
Sprint Spectrum
05/10/1999
(443) 337-
Sparrows Point
Xo Maryland
01/14/2000
(443) 338-
Sparks Glencoe
Ctc Communications Corp.
01/14/2000
(443) 339-
Sherwood Forest
Ctc Communications Corp.
01/14/2000
(443) 340-
Westminster
Cellco Partnership DBA Verizon Wireless
10/13/1999
(443) 341-
Baltimore
Level 3 Communications
05/18/1998
(443) 342-
Solomons
Ctc Communications Corp.
01/14/2000
(443) 343-
Millersville
Teleport Communications America
02/27/1999
(443) 344-
Severna Park
Core Communications
01/14/2000
(443) 345-
Aberdeen
Level 3 Communications
10/13/1999
(443) 346-
Severna Park
Xo Maryland
01/14/2000
(443) 347-
Cardiff
Ctc Communications Corp.
01/14/2000
(443) 348-
Baltimore
Teleport Communications America
08/14/1998
(443) 349-
Westminster
Core Communications
01/14/2000
(443) 350-
Elkton
Cellco Partnership DBA Verizon Wireless
08/20/2000
(443) 351-
Columbia
Us Lec Of Maryland
06/13/2000
(443) 352-
Baltimore
AT&T Local
11/20/1998
(443) 353-
Cockeysville
Verizon Maryland
03/19/2004
(443) 354-
Baltimore
Level 3 Communications
07/22/1999
(443) 355-
Baltimore
Level 3 Communications
07/22/1999
(443) 356-
Bel Air
Level 3 Communications
07/22/1999
(443) 357-
Pikesville
Verizon Maryland
10/13/1999
(443) 358-
Salisbury
Ymax Communications Corp.
02/17/2011
(443) 359-
Delmar
Cellco Partnership DBA Verizon Wireless
06/13/2000
(443) 360-
Aberdeen
Teleport Communications America
08/14/1998
(443) 361-
Sykesville
Core Communications
01/14/2000
(443) 362-
Easton
Omnipoint Communications Cap Operations
06/13/2000
(443) 363-
Severn
Xo Maryland
01/14/2000
(443) 364-
Baltimore
Teleport Communications America
08/14/1998
(443) 365-
Salisbury
Omnipoint Communications Cap Operations
06/13/2000
(443) 366-
Salisbury
Sprint Spectrum
04/17/2001
(443) 367-
Columbia
Verizon Maryland
06/13/2000
(443) 368-
Westminster
Core Communications
01/14/2000
(443) 369-
Bel Air
Core Communications
01/14/2000
(443) 370-
Annapolis
New Cingular Wireless PCS - DC
10/31/2000
(443) 371-
Bel Air
Broadwing Communications. LLC
10/31/2000
(443) 372-
Edgewood
Us Lec Of Maryland
03/19/2001
(443) 373-
Ocean City
Sprint Spectrum
10/31/2000
(443) 374-
Aberdeen
Cavalier Telephone (mid-atlantic)
02/27/1999
(443) 375-
Hampstead
Sprint Spectrum
08/20/2000
(443) 376-
Baltimore
Teleport Communications America
08/14/1998
(443) 377-
Towson
Cellco Partnership DBA Verizon Wireless
06/09/2010
(443) 378-
Baltimore
Sprint Spectrum
07/27/2004
(443) 379-
Pikesville
Comcast Phone Of Northern Maryland
02/23/2007
(443) 380-
Baltimore
Level 3 Communications
05/18/1998
(443) 381-
Reisterstown
Xo Maryland
01/14/2000
(443) 382-
Cambridge
Core Communications
01/14/2000
(443) 383-
Westminster
Ctc Communications Corp.
01/14/2000
(443) 384-
Parkville
Cavalier Telephone Mid-atlantic
10/13/1999
(443) 385-
Easton
Core Communications
01/14/2000
(443) 386-
Baltimore
Cellco Partnership DBA Verizon Wireless
02/27/1999
(443) 387-
Pocomoke
Core Communications
01/14/2000
(443) 388-
Baltimore
Cellco Partnership DBA Verizon Wireless
04/13/2006
(443) 389-
Salisbury
Core Communications
01/14/2000
(443) 390-
Churchville
Global Crossing Local Services-md
07/22/1999
(443) 391-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 392-
Baltimore
AT&T Local
05/10/1999
(443) 393-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 394-
Pikesville
Verizon Maryland
11/20/1998
(443) 395-
Aberdeen
Verizon Maryland
08/13/2009
(443) 396-
Odenton
Global Crossing Local Services-md
07/22/1999
(443) 397-
Salisbury
Cellco Partnership DBA Verizon Wireless
04/06/2009
(443) 398-
Sykesville
Sprint Spectrum
03/15/2001
(443) 399-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 400-
Baltimore
Xo Maryland
10/31/2000
(443) 401-
Baltimore
Cellco Partnership DBA Verizon Wireless
10/17/2011
(443) 402-
Edgewood
Teleport Communications America
02/27/1999
(443) 403-
Aberdeen
Broadwing Communications. LLC
06/20/2001
(443) 404-
Solomons
Sprint Spectrum
10/31/2000
(443) 405-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 406-
Elkton
Teleport Communications America
02/27/1999
(443) 407-
Baltimore
Allegiance Telecom
06/13/2000
(443) 408-
Baltimore
Xo Maryland
10/31/2000
(443) 409-
Edgewood
Cavalier Telephone Mid-atlantic
10/31/2000
(443) 410-
Baltimore
Centurylink Communications LLC
06/21/2013
(443) 412-
Churchville
Teleport Communications America
02/27/1999
(443) 413-
Baltimore
Sprint Spectrum
05/10/1999
(443) 414-
Baltimore
Sprint Spectrum
05/10/1999
(443) 415-
Baltimore
Sprint Spectrum
05/10/1999
(443) 416-
Baltimore
Sprint Spectrum
05/10/1999
(443) 417-
Fallston
Teleport Communications America
02/27/1999
(443) 418-
Baltimore
Sprint Spectrum
05/10/1999
(443) 419-
Glenwood
Cavalier Telephone Mid-atlantic
10/31/2000
(443) 420-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 421-
Fork
New Cingular Wireless PCS - DC
08/14/1998
(443) 422-
Glen Burnie
Leap Wireless Intl DBA Cricket Comm
02/13/2009
(443) 423-
Baltimore
Broadwing Communications. LLC
10/13/1999
(443) 424-
Cardiff
Teleport Communications America
02/27/1999
(443) 425-
Baltimore
AT&T Local
08/14/1998
(443) 426-
Baltimore
Paetec Communications
06/30/2001
(443) 427-
Princess Anne
Core Communications
01/14/2000
(443) 428-
Cockeysville
Core Communications
01/14/2000
(443) 429-
Woodlawn
Cavalier Telephone Mid-atlantic
10/13/1999
(443) 430-
Baltimore
Xo Maryland
05/18/2001
(443) 431-
Randallstown
Xo Maryland
01/14/2000
(443) 432-
Prince Frederick
Ctc Communications Corp.
01/14/2000
(443) 433-
Annapolis
Xo Maryland
02/21/2001
(443) 434-
Federalsburg
Comcast Phone Of Northern Maryland
11/01/2004
(443) 435-
Baltimore
Sprint Spectrum
02/01/2011
(443) 436-
Woodlawn
Verizon Maryland
11/20/1998
(443) 437-
Pocomoke
Teleport Communications America
11/01/2004
(443) 438-
Baltimore
Cellco Partnership DBA Verizon Wireless
10/08/2008
(443) 439-
Trappe
Cellco Partnership DBA Verizon Wireless
11/01/2004
(443) 440-
Annapolis
Verizon Maryland
03/03/2001
(443) 441-
Glenwood
Teleport Communications America
02/27/1999
(443) 442-
Parkville
Cavalier Telephone Mid-atlantic
05/09/2001
(443) 444-
Baltimore
Verizon Maryland
10/13/2005
(443) 445-
Elkridge
Verizon Maryland
06/30/2001
(443) 446-
Queenstown
Mci Worldcom Communications
11/01/2004
(443) 447-
Baltimore
Leap Wireless Intl DBA Cricket Comm
12/15/2008
(443) 448-
Denton
Comcast Phone Of Northern Maryland
11/01/2004
(443) 449-
Baltimore
Broadview Networks
03/28/2007
(443) 450-
Baltimore
Level 3 Communications
05/10/1999
(443) 451-
Baltimore
Paetec Communications
10/13/1999
(443) 452-
Baltimore
Us Lec Of Maryland
09/07/2005
(443) 453-
Baltimore
Neutral Tandem-maryland
10/12/2007
(443) 454-
Annapolis
Omnipoint Communications Cap Operations
03/03/2001
(443) 455-
Baltimore
Verizon Maryland
03/09/2006
(443) 456-
Edgewood
AT&T Local
03/03/2001
(443) 457-
Baltimore
Teleport Communications America
08/14/1998
(443) 458-
Annapolis
Allegiance Telecom
03/03/2001
(443) 459-
Baltimore
Paetec Communications
03/03/2001
(443) 460-
Baltimore
Allegiance Telecom
06/13/2000
(443) 461-
Parkville
Us Lec Of Maryland
06/13/2000
(443) 462-
Baltimore
Cellco Partnership DBA Verizon Wireless
11/06/2008
(443) 463-
Baltimore
Sprint Spectrum
02/27/1999
(443) 464-
Churchville
Broadview Networks
03/16/2010
(443) 465-
Towson
Cellco Partnership DBA Verizon Wireless
06/13/2000
(443) 466-
Elkton
Sprint Spectrum
05/10/1999
(443) 467-
Baltimore
Leap Wireless Intl DBA Cricket Comm
03/20/2009
(443) 468-
Baltimore
Sprint Spectrum
04/04/2007
(443) 469-
Baltimore
Leap Wireless Intl DBA Cricket Comm
03/20/2009
(443) 470-
Towson
Us Lec Of Maryland
04/29/2008
(443) 471-
Columbia
Us Lec Of Maryland
06/13/2000
(443) 472-
Baltimore
Level 3 Communications
01/14/2000
(443) 473-
Baltimore
Sprint Spectrum
03/28/2007
(443) 474-
Catonsville
New Cingular Wireless PCS - DC
02/27/1999
(443) 475-
Baltimore
Mci Worldcom Communications
06/01/2011
(443) 476-
Annapolis
Verizon Maryland
11/20/1998
(443) 477-
Cambridge
Cellco Partnership DBA Verizon Wireless
01/13/2007
(443) 478-
Baltimore
Cellco Partnership DBA Verizon Wireless
03/06/2009
(443) 479-
Laurel
Verizon Maryland
11/20/1998
(443) 480-
Chestertown
Cellco Partnership DBA Verizon Wireless
08/20/2000
(443) 481-
Annapolis
Us Lec Of Maryland
06/30/2001
(443) 482-
Annapolis
Verizon Maryland
11/20/1998
(443) 483-
Cardiff
Broadwing Communications. LLC
08/20/2000
(443) 484-
Edgewood
Broadwing Communications. LLC
08/20/2000
(443) 485-
Elkton
Broadwing Communications. LLC
08/20/2000
(443) 486-
Prince Frederick
Broadwing Communications. LLC
08/20/2000
(443) 487-
Westminster
Broadwing Communications. LLC
08/20/2000
(443) 488-
Baltimore
Leap Wireless Intl DBA Cricket Comm
06/23/2010
(443) 489-
Baltimore
Teleport Communications America
02/27/1999
(443) 490-
Edgewood
Global Crossing Local Services-md
07/22/1999
(443) 491-
Parkton
Global Crossing Local Services-md
07/22/1999
(443) 492-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 493-
Delmar
Cellco Partnership DBA Verizon Wireless
03/06/2009
(443) 494-
Millersville
Global Crossing Local Services-md
07/22/1999
(443) 495-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 496-
Easton
Sprint Spectrum
08/14/1998
(443) 497-
Salisbury
Sprint Spectrum
08/14/1998
(443) 498-
Baltimore
Allegiance Telecom
06/13/2000
(443) 499-
Jarrettsville
Global Crossing Local Services-md
07/22/1999
(443) 500-
Baltimore
Leap Wireless Intl DBA Cricket Comm
03/20/2009
(443) 501-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 502-
Havre De Grace
Teleport Communications America
02/27/1999
(443) 503-
Baltimore
Xo Maryland
10/31/2000
(443) 504-
Fallston
Cavalier Telephone Mid-atlantic
10/31/2000
(443) 505-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 506-
Baltimore
Sprint Spectrum
06/13/2000
(443) 507-
Hampstead
Teleport Communications America
02/27/1999
(443) 508-
Hampstead
Cavalier Telephone Mid-atlantic
10/31/2000
(443) 509-
Baltimore
Cellco Partnership DBA Verizon Wireless
02/10/2009
(443) 510-
Annapolis
Cellco Partnership DBA Verizon Wireless
12/04/2007
(443) 512-
Edgewood
Verizon Maryland
07/22/1999
(443) 513-
Berlin
New Cingular Wireless PCS - DC
10/31/2000
(443) 514-
Columbia
Us Lec Of Maryland
06/13/2000
(443) 515-
Cambridge
Cellco Partnership DBA Verizon Wireless
06/08/2009
(443) 516-
Sykesville
Global Crossing Local Services-md
07/22/1999
(443) 517-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 518-
Columbia
Verizon Maryland
12/16/2008
(443) 519-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 520-
Catonsville
New Cingular Wireless PCS - DC
02/27/1999
(443) 521-
Cambridge
Cellco Partnership DBA Verizon Wireless
01/14/2000
(443) 522-
Reisterstown
Paetec Communications
06/30/2001
(443) 523-
Salisbury
Verizon Maryland
08/20/2000
(443) 524-
Baltimore
Allegiance Telecom
10/13/1999
(443) 525-
Baltimore
Leap Wireless Intl DBA Cricket Comm
03/20/2009
(443) 526-
Havre De Grace
Ctc Communications Corp.
01/14/2000
(443) 527-
Baltimore
Omnipoint Communications Cap Operations
03/19/2001
(443) 528-
Bel Air
Sprint Spectrum
08/20/2000
(443) 529-
Baltimore
Omnipoint Communications Cap Operations
07/22/2008
(443) 530-
Baltimore
Paetec Communications
06/30/2001
(443) 531-
Baltimore
Leap Wireless Intl DBA Cricket Comm
03/20/2009
(443) 532-
Prince Frederick
Sprint Spectrum
08/20/2000
(443) 533-
Jarrettsville
Teleport Communications America
02/27/1999
(443) 534-
Annapolis
Cellco Partnership DBA Verizon Wireless
01/15/2001
(443) 535-
Columbia
Verizon Maryland
02/27/1999
(443) 536-
Westminster
Sprint Spectrum
08/20/2000
(443) 537-
Columbia
Verizon Maryland
05/22/2009
(443) 538-
Columbia
Omnipoint Communications Cap Operations
06/20/2001
(443) 539-
Columbia
Us Lec Of Maryland
01/14/2000
(443) 540-
Baltimore
New Cingular Wireless PCS - DC
03/03/2001
(443) 541-
Baltimore
Paetec Communications
10/13/1999
(443) 542-
Columbia
Comcast Phone Of Northern Maryland
06/30/2001
(443) 543-
Arbutus
Verizon Maryland
05/10/1999
(443) 544-
Pikesville
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 545-
Columbia
Broadwing Communications. LLC
05/18/2001
(443) 546-
Baltimore
Verizon Maryland
05/18/1998
(443) 547-
Westminster
Cellco Partnership DBA Verizon Wireless
05/07/2009
(443) 548-
Baltimore
Allegiance Telecom
10/13/1999
(443) 549-
Dundalk
Us Lec Of Maryland
01/14/2000
(443) 550-
North Beach
Level 3 Communications
06/30/2001
(443) 551-
Baltimore
Level 3 Communications
01/14/2000
(443) 552-
Baltimore
Verizon Maryland
06/13/2000
(443) 553-
Elkton
Cellco Partnership DBA Verizon Wireless
05/10/1999
(443) 554-
Middle River
Omnipoint Communications Cap Operations
07/23/2001
(443) 556-
Cockeysville
Verizon Maryland
08/14/1998
(443) 557-
Baltimore
Allegiance Telecom
06/13/2000
(443) 558-
Aberdeen
Xo Maryland
01/15/2001
(443) 559-
Essex
Comcast Phone Of Northern Maryland
06/30/2001
(443) 560-
Baltimore
Sprint Spectrum
07/18/2011
(443) 561-
Columbia
Us Lec Of Maryland
01/14/2000
(443) 562-
Baltimore
New Cingular Wireless PCS - DC
01/14/2000
(443) 563-
Baltimore
Sprint Spectrum
11/14/2006
(443) 564-
Baltimore
Level 3 Communications
10/13/1999
(443) 565-
Randallstown
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 566-
Chesapeake City
Cellco Partnership DBA Verizon Wireless
09/16/2004
(443) 567-
Bel Air
Level 3 Communications
10/13/1999
(443) 568-
Arbutus
Allegiance Telecom
06/13/2000
(443) 569-
Annapolis
Level 3 Communications
10/13/1999
(443) 570-
Baltimore
Omnipoint Communications Cap Operations
06/13/2000
(443) 571-
Baltimore
Cellco Partnership DBA Verizon Wireless
12/06/2011
(443) 572-
Glen Burnie
Verizon Maryland
05/18/1998
(443) 573-
Columbia
Us Lec Of Maryland
01/14/2000
(443) 574-
Ellicott City
Us Lec Of Maryland
01/14/2000
(443) 575-
Arbutus
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 576-
Baltimore
Allegiance Telecom
02/21/2001
(443) 577-
Columbia
Us Lec Of Maryland
06/13/2000
(443) 578-
Baltimore
Xo Maryland
06/30/2001
(443) 579-
Essex
Us Lec Of Maryland
01/14/2000
(443) 580-
Baltimore
Sprint Spectrum
08/25/2011
(443) 581-
Middle River
Xo Maryland
01/14/2000
(443) 582-
Churchville
Ctc Communications Corp.
01/14/2000
(443) 583-
Columbia
Ctc Communications Corp.
01/14/2000
(443) 584-
Crofton
Ctc Communications Corp.
01/14/2000
(443) 585-
Darlington
Ctc Communications Corp.
01/14/2000
(443) 586-
Dundalk
Xo Maryland
01/14/2000
(443) 587-
Edgewood
Ctc Communications Corp.
01/14/2000
(443) 588-
Baltimore
Allegiance Telecom
10/13/1999
(443) 589-
Cockeysville
Us Lec Of Maryland
03/03/2001
(443) 590-
Reisterstown
Global Crossing Local Services-md
07/22/1999
(443) 591-
Glen Burnie
Cellco Partnership DBA Verizon Wireless
05/07/2009
(443) 592-
Elkridge
Xo Maryland
01/14/2000
(443) 593-
Elkton
Ctc Communications Corp.
01/14/2000
(443) 594-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 595-
Sparks Glencoe
Global Crossing Local Services-md
07/22/1999
(443) 596-
Essex
Xo Maryland
01/14/2000
(443) 597-
Severna Park
Global Crossing Local Services-md
07/22/1999
(443) 598-
Sherwood Forest
Global Crossing Local Services-md
07/22/1999
(443) 599-
Baltimore
Global Crossing Local Services-md
07/22/1999
(443) 600-
Essex
Omnipoint Communications Cap Operations
07/23/2001
(443) 601-
Fallston
Ctc Communications Corp.
01/14/2000
(443) 602-
Catonsville
Cellco Partnership DBA Verizon Wireless
02/15/2007
(443) 603-
Annapolis
Paetec Communications
05/18/1998
(443) 604-
Baltimore
Cellco Partnership DBA Verizon Wireless
02/27/1999
(443) 605-
Westminster
Cavalier Telephone Mid-atlantic
10/31/2000
(443) 606-
Fork
Ctc Communications Corp.
01/14/2000
(443) 607-
West River
Cavalier Telephone Mid-atlantic
10/31/2000
(443) 608-
Towson
Leap Wireless Intl DBA Cricket Comm
02/27/2009
(443) 609-
Sykesville
Cavalier Telephone Mid-atlantic
10/31/2000
(443) 610-
Baltimore
Cellco Partnership DBA Verizon Wireless
10/13/1999
(443) 612-
Catonsville
Verizon Maryland
08/14/1998
(443) 613-
Towson
Leap Wireless Intl DBA Cricket Comm
02/27/2009
(443) 614-
Salisbury
Cellco Partnership DBA Verizon Wireless
07/23/2001
(443) 615-
Catonsville
Cellco Partnership DBA Verizon Wireless
05/10/2007
(443) 616-
Bel Air
Cavalier Telephone Mid-atlantic
10/31/2000
(443) 617-
Fallston
Cellco Partnership DBA Verizon Wireless
04/11/2005
(443) 618-
Glen Burnie
Cellco Partnership DBA Verizon Wireless
06/13/2000
(443) 619-
Bel Air
Cellco Partnership DBA Verizon Wireless
06/05/2009
(443) 620-
Baltimore
Teleport Communications America
08/14/1998
(443) 621-
Baltimore
Sprint Spectrum
02/27/1999
(443) 622-
Baltimore
Sprint Spectrum
02/27/1999
(443) 623-
Glen Burnie
Sprint Spectrum
08/20/2002
(443) 624-
Prince Frederick
Cellco Partnership DBA Verizon Wireless
03/06/2002
(443) 625-
Fork
Broadwing Communications. LLC
02/21/2001
(443) 626-
Middle River
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 627-
Baltimore
Verizon Maryland
09/26/2006
(443) 628-
Glen Burnie
Xo Maryland
01/14/2000
(443) 629-
Baltimore
Sprint Spectrum
08/14/1998
(443) 630-
Baltimore
Cellco Partnership DBA Verizon Wireless
05/08/2008
(443) 631-
Catonsville
New Cingular Wireless PCS - DC
08/16/2005
(443) 632-
Towson
Us Lec Of Maryland
01/14/2000
(443) 633-
Baltimore
Sprint Spectrum
07/18/2011
(443) 634-
Odenton
Verizon Maryland
11/09/2011
(443) 635-
Baltimore
Leap Wireless Intl DBA Cricket Comm
10/14/2009
(443) 636-
Catonsville
Omnipoint Communications Cap Operations
06/25/2005
(443) 637-
Baltimore
Xo Maryland
02/21/2001
(443) 638-
Ellicott City
Global Naps South
01/14/2000
(443) 639-
Hampstead
Ctc Communications Corp.
01/14/2000
(443) 640-
Bel Air
Us Lec Of Maryland
05/18/2001
(443) 641-
Pikesville
Broadwing Communications. LLC
05/18/2001
(443) 642-
Baltimore
Cellco Partnership DBA Verizon Wireless
11/08/2006
(443) 643-
Bel Air
Verizon Maryland
10/13/1999
(443) 644-
Jarrettsville
Ctc Communications Corp.
01/14/2000
(443) 645-
Millersville
Ctc Communications Corp.
01/14/2000
(443) 646-
North Beach
Ctc Communications Corp.
01/14/2000
(443) 647-
New Windsor
Ctc Communications Corp.
01/14/2000
(443) 648-
Baltimore
Teleport Communications America
08/14/1998
(443) 649-
Sparrows Point
Us Lec Of Maryland
06/20/2001
(443) 650-
Reisterstown
Allegiance Telecom
02/20/2001
(443) 651-
Baltimore
Cellco Partnership DBA Verizon Wireless
07/08/2011
(443) 652-
Towson
Verizon Maryland
05/28/2002
(443) 653-
Baltimore
Omnipoint Communications Cap Operations
05/18/2001
(443) 654-
Jessup
Verizon Maryland
08/28/2008
(443) 655-
Bel Air
New Cingular Wireless PCS - DC
10/13/1999
(443) 656-
Columbia
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 657-
Randallstown
Tw Telecom Of Maryland LLC
10/13/1999
(443) 658-
Woodlawn
Global Naps South
01/14/2000
(443) 659-
West River
Global Naps South
01/14/2000
(443) 660-
Baltimore
Comcast Phone Of Northern Maryland
06/30/2001
(443) 661-
Jessup
Cavalier Telephone Mid-atlantic
10/13/1999
(443) 662-
Sparks Glencoe
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 663-
Woodlawn
Verizon Maryland
06/30/2001
(443) 664-
Ocean City
Cavalier Telephone (mid-atlantic)
11/20/1998
(443) 665-
Nanticoke
Cavalier Telephone (mid-atlantic)
11/20/1998
(443) 666-
Chestertown
Level 3 Communications
05/23/2012
(443) 668-
Catonsville
New Cingular Wireless PCS - DC
01/15/2001
(443) 669-
Delmar
Cavalier Telephone (mid-atlantic)
11/20/1998
(443) 670-
Catonsville
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 671-
New Windsor
Teleport Communications America
02/27/1999
(443) 672-
Parkton
Teleport Communications America
02/27/1999
(443) 673-
Brooklyn
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 674-
North East
Teleport Communications America
02/27/1999
(443) 675-
Randallstown
Cavalier Telephone (mid-atlantic)
11/20/1998
(443) 676-
Baltimore
New Cingular Wireless PCS - DC
06/20/2001
(443) 677-
Baltimore
Sprint Spectrum
03/15/2001
(443) 678-
Parkville
Verizon Maryland
08/20/2000
(443) 679-
Baltimore
Teleport Communications America
08/14/1998
(443) 680-
Baltimore
Sprint Spectrum
09/27/2010
(443) 681-
Baltimore
Cellco Partnership DBA Verizon Wireless
06/05/2009
(443) 682-
Baltimore
Cellco Partnership DBA Verizon Wireless
12/19/2006
(443) 683-
Baltimore
Cellco Partnership DBA Verizon Wireless
04/09/2007
(443) 684-
Prince Frederick
Cellco Partnership DBA Verizon Wireless
10/08/2008
(443) 685-
Severn
Cavalier Telephone (mid-atlantic)
11/20/1998
(443) 686-
Fallston
Sprint Spectrum
05/10/2005
(443) 687-
Baltimore
Cellco Partnership DBA Verizon Wireless
09/08/2009
(443) 688-
Severn
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 689-
Cockeysville
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 690-
Baltimore
Cellco Partnership DBA Verizon Wireless
06/13/2000
(443) 691-
Baltimore
New Cingular Wireless PCS - DC
01/15/2001
(443) 692-
Baltimore
Allegiance Telecom
06/13/2000
(443) 693-
Perryville
Teleport Communications America
02/27/1999
(443) 694-
Severna Park
Sprint Spectrum
04/20/2001
(443) 695-
Baltimore
Cellco Partnership DBA Verizon Wireless
01/14/2000
(443) 696-
Dundalk
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 697-
Catonsville
Global Naps South
01/14/2000
(443) 698-
Odenton
Teleport Communications America
08/14/1998
(443) 699-
Annapolis
Cellco Partnership DBA Verizon Wireless
08/10/2011
(443) 701-
Arbutus
Xo Maryland
10/31/2000
(443) 702-
Pasadena
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 703-
Baltimore
Xo Maryland
10/31/2000
(443) 704-
Odenton
Cavalier Telephone Mid-atlantic
05/10/2001
(443) 705-
Cockeysville
Xo Maryland
01/14/2000
(443) 706-
Crisfield
Cavalier Telephone (mid-atlantic)
11/20/1998
(443) 707-
Local Access LLC
06/11/2014
(443) 708-
Baltimore
Tw Telecom Of Maryland LLC
08/20/2000
(443) 709-
Arbutus
Cavalier Telephone Mid-atlantic
10/13/1999
(443) 710-
Baltimore
Xo Maryland
10/31/2000
(443) 712-
Reisterstown
Cavalier Telephone Mid-atlantic
10/31/2000
(443) 713-
Columbia
Peerless Network Of Maryland
09/19/2012
(443) 714-
Columbia
Sprint Spectrum
09/30/2011
(443) 715-
North East
Cavalier Telephone (mid-atlantic)
02/27/1999
(443) 716-
Annapolis
Cavalier Telephone Mid-atlantic
10/31/2000
(443) 717-
Baltimore
Cellco Partnership DBA Verizon Wireless
09/14/2005
(443) 718-
Columbia
Us Lec Of Maryland
03/05/2008
(443) 719-
Jarrettsville
Cavalier Telephone Mid-atlantic
10/31/2000
(443) 720-
Elkton
Xo Maryland
11/27/2012
(443) 721-
Baltimore
Cellco Partnership DBA Verizon Wireless
07/06/2009
(443) 722-
Baltimore
Omnipoint Communications Cap Operations
03/09/2001
(443) 723-
Brooklyn
Sprint Spectrum
10/06/2011
(443) 724-
Easton
Cavalier Telephone (mid-atlantic)
11/20/1998
(443) 725-
Baltimore
Paetec Communications
01/14/2000
(443) 726-
Towson
Sprint Spectrum
10/06/2011
(443) 727-
Bishopville
Cavalier Telephone (mid-atlantic)
11/20/1998
(443) 728-
Berlin
Cavalier Telephone (mid-atlantic)
11/20/1998
(443) 729-
Baltimore
Paetec Communications
01/14/2000
(443) 730-
Baltimore
Paetec Communications
01/14/2000
(443) 731-
Port Deposit
Teleport Communications America
02/27/1999
(443) 732-
Westminster
Teleport Communications America
02/27/1999
(443) 733-
Baltimore
AT&T Local
10/31/2001
(443) 734-
Severn
Verizon Maryland
05/10/1999
(443) 735-
Salisbury
New Cingular Wireless PCS - DC
02/27/1999
(443) 736-
Salisbury
New Cingular Wireless PCS - DC
11/20/1998
(443) 737-
Baltimore
Paetec Communications
10/31/2001
(443) 738-
Baltimore
Paetec Communications
01/14/2000
(443) 739-
Baltimore
Omnipoint Communications Cap Operations
07/23/2001
(443) 740-
Baltimore
Telcove Operations
02/03/2005
(443) 741-
Columbia
Mci Worldcom Communications
03/29/2011
(443) 742-
Baltimore
New Cingular Wireless PCS - DC
08/20/2000
(443) 743-
Baltimore
Cellco Partnership DBA Verizon Wireless
04/07/2008
(443) 744-
Reisterstown
Sprint Spectrum
07/02/2002
(443) 745-
Columbia
Cellco Partnership DBA Verizon Wireless
11/20/1998
(443) 746-
Easton
Level 3 Communications
02/22/2002
(443) 747-
Port Deposit
Core Communications
02/22/2002
(443) 748-
Millersville
Cavalier Telephone Mid-atlantic
05/11/2001
(443) 749-
Baltimore
Cavalier Telephone Mid-atlantic
03/03/2001
(443) 750-
Baltimore
Cellco Partnership DBA Verizon Wireless
06/08/2010
(443) 751-
Woodlawn
Cavalier Telephone Mid-atlantic
05/11/2001
(443) 752-
Bel Air
Cellco Partnership DBA Verizon Wireless
10/17/2001
(443) 753-
Jessup
Allegiance Telecom
10/31/2000
(443) 754-
Salisbury
Cellco Partnership DBA Verizon Wireless
06/09/2010
(443) 755-
Elkridge
Verizon Maryland
02/27/1999
(443) 756-
Baltimore
New Cingular Wireless PCS - DC
08/20/2000
(443) 757-
Elkridge
Cavalier Telephone Mid-atlantic
05/11/2001
(443) 758-
Annapolis
AT&T Local
08/14/1998
(443) 759-
Baltimore
Cellco Partnership DBA Verizon Wireless
10/29/2007
(443) 760-
Aberdeen
AT&T Local
08/14/1998
(443) 761-
Towson
Omnipoint Communications Cap Operations
05/28/2008
(443) 762-
Baltimore
Sprint Spectrum
01/10/2001
(443) 763-
Baltimore
Omnipoint Communications Cap Operations
05/18/1998
(443) 764-
Glen Burnie
Omnipoint Communications Cap Operations
08/21/2008
(443) 765-
Catonsville
New Cingular Wireless PCS - DC
07/23/2001
(443) 766-
Columbia
Us Lec Of Maryland
05/18/2005
(443) 767-
Reisterstown
Cavalier Telephone Mid-atlantic
05/11/2001
(443) 768-
Baltimore
Sprint Spectrum
05/18/2001
(443) 769-
Baltimore
Omnipoint Communications Cap Operations
09/16/2008
(443) 770-
Pasadena
Verizon Maryland
03/03/2001
(443) 771-
Prince Frederick
Cellco Partnership DBA Verizon Wireless
09/08/2010
(443) 772-
Essex
Cavalier Telephone Mid-atlantic
07/23/2001
(443) 773-
Baltimore
Allegiance Telecom
08/20/2000
(443) 774-
Baltimore
Global Naps South
08/20/2000
(443) 776-
Baltimore
Bandwidth.com Clec
01/17/2014
(443) 777-
Essex
Verizon Maryland
08/20/2000
(443) 778-
Laurel
Verizon Maryland
05/18/1998
(443) 779-
Aberdeen
Xo Maryland
06/30/2001
(443) 780-
Columbia
Us Lec Of Maryland
07/23/2001
(443) 781-
Pasadena
Xo Maryland
01/14/2000
(443) 782-
Annapolis
Xo Maryland
01/14/2000
(443) 783-
Salisbury
Cellco Partnership DBA Verizon Wireless
02/27/1999
(443) 784-
Baltimore
Teleport Communications America
02/27/1999
(443) 785-
Arbutus
Global Naps South
01/14/2000
(443) 786-
Easton
Cellco Partnership DBA Verizon Wireless
06/13/2000
(443) 787-
Bel Air
Ctc Communications Corp.
01/14/2000
(443) 788-
Aberdeen
Xo Maryland
01/14/2000
(443) 789-
Westminster
New Cingular Wireless PCS - DC
08/20/2000
(443) 790-
Glen Burnie
Sprint Spectrum
11/19/2001
(443) 791-
Towson
New Cingular Wireless PCS - DC
08/20/2000
(443) 792-
Brooklyn
Verizon Maryland
10/18/2007
(443) 793-
Baltimore
Xo Maryland
10/31/2000
(443) 794-
Baltimore
New Cingular Wireless PCS - DC
01/14/2000
(443) 795-
Baltimore
Xo Maryland
10/31/2000
(443) 796-
Baltimore
Xo Maryland
10/31/2000
(443) 797-
Baltimore
Xo Maryland
10/31/2000
(443) 798-
Towson
Tw Telecom Of Maryland LLC
05/10/1999
(443) 799-
Baltimore
New Cingular Wireless PCS - DC
07/23/2001
(443) 800-
Baltimore
Sprint Spectrum
01/31/2011
(443) 801-
Baltimore
Sprint Spectrum
07/22/1999
(443) 802-
Baltimore
Sprint Spectrum
07/22/1999
(443) 803-
Baltimore
Sprint Spectrum
07/22/1999
(443) 804-
Baltimore
Sprint Spectrum
07/22/1999
(443) 805-
Glen Burnie
Omnipoint Communications Cap Operations
07/24/2008
(443) 806-
Baltimore
Sprint Spectrum
03/08/2006
(443) 807-
Fallston
Sprint Spectrum
08/20/2000
(443) 808-
Annapolis
Bandwidth.com Clec
04/04/2014
(443) 809-
Level 3 Communications
06/13/2014
(443) 810-
Baltimore
Sprint Spectrum
09/04/2008
(443) 812-
Columbia
Cellco Partnership DBA Verizon Wireless
01/15/2001
(443) 813-
Baltimore
Cellco Partnership DBA Verizon Wireless
09/14/2007
(443) 814-
Baltimore
Cellco Partnership DBA Verizon Wireless
06/15/2010
(443) 815-
Baltimore
Xo Maryland
10/31/2000
(443) 816-
Severna Park
Allegiance Telecom
10/31/2000
(443) 817-
Baltimore
Allegiance Telecom
10/31/2000
(443) 818-
Pasadena
Level 3 Communications
12/30/2005
(443) 820-
Baltimore
Paetec Communications
05/18/1998
(443) 821-
Westminster
Sprint Spectrum
07/13/2010
(443) 822-
Annapolis
Sprint Spectrum
08/14/1998
(443) 823-
Towson
Cellco Partnership DBA Verizon Wireless
07/13/2006
(443) 824-
Towson
Omnipoint Communications Cap Operations
05/18/2001
(443) 825-
Baltimore
Omnipoint Communications Cap Operations
11/29/2006
(443) 826-
Baltimore
Cellco Partnership DBA Verizon Wireless
06/25/2010
(443) 827-
Baltimore
Cellco Partnership DBA Verizon Wireless
11/20/1998
(443) 828-
Ellicott City
Cavalier Telephone Mid-atlantic
05/11/2001
(443) 829-
Baltimore
Sprint Spectrum
06/13/2000
(443) 830-
Catonsville
Cavalier Telephone Mid-atlantic
08/21/2001
(443) 831-
Baltimore
New Cingular Wireless PCS - DC
11/20/1998
(443) 832-
Baltimore
Level 3 Communications
07/22/1999
(443) 833-
Arbutus
Us Lec Of Maryland
03/03/2001
(443) 834-
Towson
Cavalier Telephone Mid-atlantic
10/13/1999
(443) 835-
Baltimore
Cellco Partnership DBA Verizon Wireless
12/11/2008
(443) 836-
Baltimore
Xo Maryland
01/14/2000
(443) 837-
Annapolis
Us Lec Of Maryland
09/24/2001
(443) 838-
Baltimore
New Cingular Wireless PCS - DC
07/22/1999
(443) 839-
Baltimore
Omnipoint Communications Cap Operations
04/17/2006
(443) 840-
Catonsville
New Cingular Wireless PCS - DC
05/04/2005
(443) 841-
Baltimore
Verizon Maryland
07/22/1999
(443) 842-
Baltimore
Cellco Partnership DBA Verizon Wireless
03/10/2011
(443) 843-
Havre De Grace
Verizon Maryland
07/22/1999
(443) 844-
Baltimore
Cellco Partnership DBA Verizon Wireless
02/13/2006
(443) 845-
Baltimore
Cellco Partnership DBA Verizon Wireless
02/27/1999
(443) 846-
Towson
New Cingular Wireless PCS - DC
03/03/2001
(443) 847-
Towson
Cellco Partnership DBA Verizon Wireless
10/12/2006
(443) 848-
Baltimore
Sprint Spectrum
03/03/2001
(443) 849-
Towson
Verizon Maryland
05/18/2001
(443) 850-
Baltimore
Omnipoint Communications Cap Operations
09/24/2001
(443) 851-
Catonsville
Omnipoint Communications Cap Operations
08/21/2001
(443) 852-
Annapolis
New Cingular Wireless PCS - DC
08/21/2001
(443) 853-
Baltimore
Cellco Partnership DBA Verizon Wireless
07/27/2010
(443) 854-
Baltimore
Omnipoint Communications Cap Operations
11/19/2001
(443) 855-
Aberdeen
Lightwave Communications
05/20/2005
(443) 856-
Ocean City
Core Communications
07/02/2002
(443) 857-
Baltimore
Omnipoint Communications Cap Operations
06/13/2000
(443) 858-
Baltimore
Omnipoint Communications Cap Operations
06/13/2000
(443) 859-
Salisbury
Omnipoint Communications Cap Operations
06/13/2000
(443) 860-
Catonsville
New Cingular Wireless PCS - DC
05/04/2005
(443) 861-
Aberdeen
Verizon Maryland
08/13/2009
(443) 862-
Towson
Cellco Partnership DBA Verizon Wireless
10/07/2011
(443) 863-
Baltimore
Cellco Partnership DBA Verizon Wireless
08/09/2010
(443) 864-
Columbia
Sprint Spectrum
12/19/2001
(443) 865-
Baltimore
Sprint Spectrum
04/19/2002
(443) 866-
Bel Air
Sprint Spectrum
07/02/2002
(443) 867-
Glen Burnie
Paetec Communications
10/13/1999
(443) 868-
Baltimore
Verizon Maryland
07/22/1999
(443) 869-
Baltimore
Cellco Partnership DBA Verizon Wireless
06/12/2006
(443) 870-
Pikesville
Tw Telecom Of Maryland LLC
05/10/1999
(443) 871-
Annapolis
Sprint Spectrum
11/20/1998
(443) 872-
Baltimore
Cavalier Telephone Mid-atlantic
03/03/2001
(443) 873-
Pikesville
Broadvox-clec
02/23/2010
(443) 874-
Baltimore
Cavalier Telephone Mid-atlantic
03/03/2001
(443) 875-
Annapolis
New Cingular Wireless PCS - DC
03/03/2001
(443) 876-
Bel Air
Sprint Spectrum
03/03/2001
(443) 877-
North East
Level 3 Communications
10/13/1999
(443) 878-
Baltimore
Cellco Partnership DBA Verizon Wireless
03/03/2001
(443) 879-
Baltimore
Verizon Maryland
03/03/2001
(443) 880-
Salisbury
AT&T Local
11/20/1998
(443) 881-
Reisterstown
Sprint Spectrum
09/26/2006
(443) 882-
Baltimore
Sprint Spectrum
02/01/2011
(443) 883-
Baltimore
AT&T Local
08/14/1998
(443) 884-
Baltimore
Cavalier Telephone Mid-atlantic
03/03/2001
(443) 885-
Baltimore
Verizon Maryland
08/14/1998
(443) 886-
Baltimore
AT&T Local
08/14/1998
(443) 887-
Harmans
Cavalier Telephone Mid-atlantic
05/05/2010
(443) 888-
Princess Anne
Cavalier Telephone (mid-atlantic)
01/06/2011
(443) 889-
Glen Burnie
Omnipoint Communications Cap Operations
04/20/2001
(443) 890-
Baltimore
Cellco Partnership DBA Verizon Wireless
08/10/2011
(443) 891-
Baltimore
Xo Maryland
10/31/2000
(443) 892-
New Windsor
Bandwidth.com Clec
08/11/2011
(443) 893-
Baltimore
Xo Maryland
10/31/2000
(443) 894-
Baltimore
Sprint Spectrum
06/30/2011
(443) 895-
Towson
Cellco Partnership DBA Verizon Wireless
04/09/2007
(443) 896-
Baltimore
AT&T Local
08/14/1998
(443) 897-
Baltimore
Leap Wireless Intl DBA Cricket Comm
04/12/2011
(443) 898-
Pikesville
Level 3 Communications
12/08/2005
(443) 899-
Elkridge
Broadwing Communications. LLC
03/03/2001
(443) 900-
Towson
Cellco Partnership DBA Verizon Wireless
05/23/2012
(443) 901-
Towson
Cavalier Telephone Mid-atlantic
08/21/2001
(443) 902-
Baltimore
Cellco Partnership DBA Verizon Wireless
01/06/2011
(443) 903-
Bel Air
Cellco Partnership DBA Verizon Wireless
09/07/2011
(443) 904-
Baltimore
Cellco Partnership DBA Verizon Wireless
10/17/2001
(443) 905-
Annapolis
Sprint Spectrum
08/12/2011
(443) 906-
Severna Park
Peerless Network Of Maryland
09/20/2012
(443) 907-
Elkton
Cellco Partnership DBA Verizon Wireless
04/20/2001
(443) 908-
Baltimore
Cellco Partnership DBA Verizon Wireless
06/29/2011
(443) 909-
Baltimore
Cellco Partnership DBA Verizon Wireless
08/09/2006
(443) 910-
Bel Air
New Cingular Wireless PCS - DC
04/20/2001
(443) 912-
Towson
Core Communications
07/02/2002
(443) 913-
Baltimore
Sprint Spectrum
06/30/2011
(443) 914-
Reisterstown
Teleport Communications America
02/27/1999
(443) 915-
Baltimore
Cellco Partnership DBA Verizon Wireless
09/07/2011
(443) 916-
Baltimore
Sprint Spectrum
08/22/2011
(443) 917-
Columbia
Broadvox-clec
10/07/2011
(443) 918-
Taneytown
Teleport Communications America
02/27/1999
(443) 919-
Baltimore
Cavalier Telephone Mid-atlantic
03/03/2001
(443) 920-
Sykesville
Teleport Communications America
02/27/1999
(443) 921-
Baltimore
Paetec Communications
10/13/1999
(443) 922-
Edgewood
Atx Telecommunications Services, Ltd
02/07/2006
(443) 923-
Baltimore
Cavalier Telephone Mid-atlantic
05/11/2001
(443) 924-
Annapolis
Cellco Partnership DBA Verizon Wireless
07/06/2009
(443) 925-
Baltimore
Omnipoint Communications Cap Operations
02/24/2006
(443) 926-
Annapolis
Broadwing Communications. LLC
08/20/2000
(443) 927-
Baltimore
Broadwing Communications. LLC
08/20/2000
(443) 928-
Baltimore
Cellco Partnership DBA Verizon Wireless
09/24/2001
(443) 929-
Pikesville
Omnipoint Communications Cap Operations
04/20/2001
(443) 930-
Baltimore
Cellco Partnership DBA Verizon Wireless
04/06/2011
(443) 931-
Baltimore
Mci Worldcom Communications
10/24/2011
(443) 932-
Baltimore
Sprint Spectrum
08/22/2011
(443) 933-
Cockeysville
Teleport Communications America
04/20/2004
(443) 934-
Baltimore
Cellco Partnership DBA Verizon Wireless
12/04/2007
(443) 935-
Towson
New Cingular Wireless PCS - DC
07/31/2006
(443) 937-
Union Bridge
Teleport Communications America
02/27/1999
(443) 938-
Baltimore
Cellco Partnership DBA Verizon Wireless
08/06/2007
(443) 939-
Baltimore
Omnipoint Communications Cap Operations
09/23/2002
(443) 940-
Pikesville
Cavalier Telephone Mid-atlantic
08/21/2001
(443) 941-
Elkton
New Cingular Wireless PCS - DC
09/07/2011
(443) 942-
Severna Park
Teleport Communications America
08/14/1998
(443) 943-
Baltimore
Teleport Communications America
08/14/1998
(443) 944-
Salisbury
Comcast Phone Of Northern Maryland
06/08/2006
(443) 945-
Elkton
New Cingular Wireless PCS - DC
07/02/2002
(443) 946-
Parkville
Xo Maryland
01/14/2000
(443) 947-
Perryville
Ctc Communications Corp.
01/14/2000
(443) 948-
Baltimore
Sprint Spectrum
08/22/2011
(443) 949-
Annapolis
Comcast Phone Of Northern Maryland
06/28/2006
(443) 951-
Annapolis
Global Crossing Local Services-md
07/22/1999
(443) 952-
Westminster
Cellco Partnership DBA Verizon Wireless
09/07/2011
(443) 953-
Salisbury
Cellco Partnership DBA Verizon Wireless
09/07/2011
(443) 954-
Baltimore
Paetec Communications
07/06/2005
(443) 955-
Baltimore
Cellco Partnership DBA Verizon Wireless
03/13/2006
(443) 956-
Baltimore
New Cingular Wireless PCS - DC
01/14/2000
(443) 957-
Baltimore
AT&T Local
08/14/1998
(443) 960-
Glen Burnie
Cellco Partnership DBA Verizon Wireless
10/07/2011
(443) 962-
Glen Burnie
Cellco Partnership DBA Verizon Wireless
09/14/2007
(443) 963-
Baltimore
Halo Wireless Services
12/01/2011
(443) 964-
North Beach
Level 3 Communications
05/12/2006
(443) 965-
Baltimore
Sprint Spectrum
06/21/2006
(443) 966-
Fallston
Cellco Partnership DBA Verizon Wireless
09/13/2006
(443) 967-
North East
Verizon Maryland
04/20/2001
(443) 968-
Prince Frederick
New Cingular Wireless PCS - DC
07/22/1999
(443) 969-
Essex
Cavalier Telephone Mid-atlantic
05/11/2001
(443) 970-
Baltimore
Cellco Partnership DBA Verizon Wireless
11/21/2011
(443) 971-
Taneytown
Bandwidth.com Clec
02/16/2011
(443) 972-
Cambridge
Us Lec Of Maryland
11/21/2011
(443) 973-
Baltimore
Xo Maryland
06/30/2001
(443) 974-
Westminster
Teleport Communications America
02/27/1999
(443) 975-
Prince Frederick
New Cingular Wireless PCS - DC
03/03/2001
(443) 976-
Baltimore-washington Telephone (bwt)
10/17/2005
(443) 977-
Baltimore
Cellco Partnership DBA Verizon Wireless
10/12/2006
(443) 978-
Salisbury
Cellco Partnership DBA Verizon Wireless
11/21/2011
(443) 979-
Columbia
Cellco Partnership DBA Verizon Wireless
11/21/2011
(443) 980-
Catonsville
New Cingular Wireless PCS - DC
10/13/1999
(443) 981-
Fallston
Cellco Partnership DBA Verizon Wireless
11/21/2011
(443) 982-
Baltimore
Ymax Communications Corp.
05/30/2007
(443) 983-
Baltimore
Omnipoint Communications Cap Operations
07/02/2002
(443) 984-
Baltimore
Verizon Maryland
10/31/2000
(443) 985-
Randallstown
Omnipoint Communications Cap Operations
06/20/2001
(443) 986-
Baltimore
Cellco Partnership DBA Verizon Wireless
07/13/2006
(443) 987-
Bel Air
AT&T Local
11/20/1998
(443) 988-
Centreville
Level 3 Communications
06/08/2006
(443) 989-
Glen Burnie
Cavalier Telephone Mid-atlantic
05/11/2001
(443) 990-
Baltimore
Bandwidth.com Clec
02/04/2011
(443) 991-
Towson
Cellco Partnership DBA Verizon Wireless
12/01/2011
(443) 992-
Baltimore
Level 3 Communications
01/14/2000
(443) 993-
Elkton
Metro PCS
12/13/2010
(443) 994-
Annapolis
New Cingular Wireless PCS - DC
11/20/1998
(443) 995-
Annapolis
New Cingular Wireless PCS - DC
08/20/2000
(443) 996-
Catonsville
New Cingular Wireless PCS - DC
11/20/1998
(443) 997-
Baltimore
Verizon Maryland
03/03/2001
(443) 998-
Parkville
Verizon Maryland
03/19/2001

Heavily Reported Numbers

Phone complaint data powered by CallerCenter.com


Sources: North American Numbering Plan Administration (NANPA), telecom providers, and the U.S. Census Bureau.