443 Area Code

State: Maryland

Major City: Annapolis

  • Admission to Statehood:
    April 28, 1788 (7th State)
  • Constitution:
    Maryland's Constitution , 7th State
  • Nickname:
    Old Line State
  • Population (2013):
    5,928,814; Rank: 19 of 50 | Population Quick Facts
  • Area:
    • Area: 12,407 sq.mi (32,134 sq.km.), 42nd
    • Land: 9,775 sq.mi. (25,317 sq.km.), 42nd
    • Water: 2,633 sq.mi. (6,819 sq.km.), 18th
    • Coastline: 31 mi. (50 km.), 20th
    • Shoreline: 3,190 mi. (5,134 km.), 9th

Area Code 443

Map:

Area Code Prefix Usage Primary City Carrier Introduced
443 (443) 200- Landline Baltimore Allegiance Telecom 02/21/2001
443 (443) 201- Wireless Westminster Cellco Partnership DBA Verizon Wireless 12/01/2011
443 (443) 202- Wireless Baltimore Cellco Partnership DBA Verizon Wireless 01/09/2012
443 (443) 203- Landline West River Verizon Maryland 03/03/2001
443 (443) 204- Wireless Pikesville New Cingular Wireless PCS - DC 05/15/2003
443 (443) 205- Wireless Cambridge Sprint Spectrum L.p. 01/20/2004
443 (443) 206- Wireless Perryville Cellco Partnership DBA Verizon Wireless 01/14/2000
443 (443) 207- Wireless Elkton Omnipoint Communications Enterprises, L.p. 08/14/1998
443 (443) 208- Landline Essex Sprint Spectrum L.p. 02/01/2011
443 (443) 209- Landline Havre De Grace Cavalier Telephone (mid-atlantic) 02/27/1999
443 (443) 210- Landline Aberdeen Sprint Spectrum L.p. 09/30/2011
443 (443) 212- Landline Sparks Glencoe Us Lec Of Maryland 08/14/1998
443 (443) 213- Landline Baltimore Verizon Maryland 05/18/1998
443 (443) 214- Landline Annapolis New Cingular Wireless PCS - DC 10/11/2011
443 (443) 215- Landline Chestertown Core Communications 01/14/2000
443 (443) 216- Landline Dundalk Cavalier Telephone Mid-atlantic 10/13/1999
443 (443) 217- Landline Annapolis Core Communications 01/14/2000
443 (443) 218- Landline Reisterstown Global Crossing Local Services-md 07/22/1999
443 (443) 219- Landline Baltimore Level 3 Communications 05/18/1998
443 (443) 220- Landline Baltimore Verizon Maryland 11/20/1998
443 (443) 221- Landline Annapolis Level 3 Communications 08/20/2000
443 (443) 222- Landline Reisterstown Xo Maryland 01/14/2000
443 (443) 223- Wireless Annapolis Cellco Partnership DBA Verizon Wireless 10/13/1999
443 (443) 224- Landline Baltimore Mci Worldcom Communications 05/10/1999
443 (443) 225- Landline Cambridge Sprint Spectrum L.p. 01/20/2004
443 (443) 226- Wireless Baltimore Sprint Spectrum L.p. 08/14/1998
443 (443) 227- Landline Port Deposit Ctc Communications Corp. 01/14/2000
443 (443) 228- Landline Middle River Us Lec Of Maryland 06/30/2001
443 (443) 229- Landline Severna Park Cavalier Telephone Mid-atlantic 05/10/2001
443 (443) 230- Landline Odenton Ctc Communications Corp. 01/14/2000
443 (443) 231- Landline Baltimore AT&T; Local 08/14/1998
443 (443) 232- Landline Willards Cavalier Telephone (mid-atlantic) 11/20/1998
443 (443) 233- Landline Mardela Springs Cavalier Telephone (mid-atlantic) 11/20/1998
443 (443) 234- Landline Snow Hill Cavalier Telephone (mid-atlantic) 11/20/1998
443 (443) 235- Wireless Salisbury Cellco Partnership DBA Verizon Wireless 10/13/1999
443 (443) 236- Landline Cardiff Core Communications 01/14/2000
443 (443) 237- Landline North Beach Core Communications 01/14/2000
443 (443) 238- Landline Parkton Ctc Communications Corp. 01/14/2000
443 (443) 239- Wireless Easton New Cingular Wireless PCS - DC 01/20/2004
443 (443) 240- Wireless Baltimore New Cingular Wireless PCS - DC 01/27/2012
443 (443) 241- Landline Westminster Global Naps South 01/14/2000
443 (443) 242- Landline Sparrows Point Cavalier Telephone Mid-atlantic 05/10/2001
443 (443) 243- Wireless Fallston Cellco Partnership DBA Verizon Wireless 10/13/1999
443 (443) 244- Landline Westminster Level 3 Communications 10/13/1999
443 (443) 245- Landline Elkton Cavalier Telephone (mid-atlantic) 02/27/1999
443 (443) 246- Landline Elkton Core Communications 01/14/2000
443 (443) 247- Landline Union Bridge Ctc Communications Corp. 01/14/2000
443 (443) 248- Wireless Catonsville Cellco Partnership DBA Verizon Wireless 01/15/2007
443 (443) 249- Landline Stevensville Verizon Maryland 07/22/1999
443 (443) 250- Wireless Baltimore Sprint Spectrum L.p. 08/14/1998
Area Code: 443
Prefix: (443) 200-
Usage: Landline
Primary City: Baltimore
Carrier: Allegiance Telecom
Introduced: 02/21/2001
Area Code: 443
Prefix: (443) 201-
Usage: Wireless
Primary City: Westminster
Carrier: Cellco Partnership DBA Verizon Wireless
Introduced: 12/01/2011
Area Code: 443
Prefix: (443) 202-
Usage: Wireless
Primary City: Baltimore
Carrier: Cellco Partnership DBA Verizon Wireless
Introduced: 01/09/2012
Area Code: 443
Prefix: (443) 203-
Usage: Landline
Primary City: West River
Carrier: Verizon Maryland
Introduced: 03/03/2001
Area Code: 443
Prefix: (443) 204-
Usage: Wireless
Primary City: Pikesville
Carrier: New Cingular Wireless PCS - DC
Introduced: 05/15/2003
Area Code: 443
Prefix: (443) 205-
Usage: Wireless
Primary City: Cambridge
Carrier: Sprint Spectrum L.p.
Introduced: 01/20/2004
Area Code: 443
Prefix: (443) 206-
Usage: Wireless
Primary City: Perryville
Carrier: Cellco Partnership DBA Verizon Wireless
Introduced: 01/14/2000
Area Code: 443
Prefix: (443) 207-
Usage: Wireless
Primary City: Elkton
Carrier: Omnipoint Communications Enterprises, L.p.
Introduced: 08/14/1998
Area Code: 443
Prefix: (443) 208-
Usage: Landline
Primary City: Essex
Carrier: Sprint Spectrum L.p.
Introduced: 02/01/2011
Area Code: 443
Prefix: (443) 209-
Usage: Landline
Primary City: Havre De Grace
Carrier: Cavalier Telephone (mid-atlantic)
Introduced: 02/27/1999
Area Code: 443
Prefix: (443) 210-
Usage: Landline
Primary City: Aberdeen
Carrier: Sprint Spectrum L.p.
Introduced: 09/30/2011
Area Code: 443
Prefix: (443) 212-
Usage: Landline
Primary City: Sparks Glencoe
Carrier: Us Lec Of Maryland
Introduced: 08/14/1998
Area Code: 443
Prefix: (443) 213-
Usage: Landline
Primary City: Baltimore
Carrier: Verizon Maryland
Introduced: 05/18/1998
Area Code: 443
Prefix: (443) 214-
Usage: Landline
Primary City: Annapolis
Carrier: New Cingular Wireless PCS - DC
Introduced: 10/11/2011
Area Code: 443
Prefix: (443) 215-
Usage: Landline
Primary City: Chestertown
Carrier: Core Communications
Introduced: 01/14/2000
Area Code: 443
Prefix: (443) 216-
Usage: Landline
Primary City: Dundalk
Carrier: Cavalier Telephone Mid-atlantic
Introduced: 10/13/1999
Area Code: 443
Prefix: (443) 217-
Usage: Landline
Primary City: Annapolis
Carrier: Core Communications
Introduced: 01/14/2000
Area Code: 443
Prefix: (443) 218-
Usage: Landline
Primary City: Reisterstown
Carrier: Global Crossing Local Services-md
Introduced: 07/22/1999
Area Code: 443
Prefix: (443) 219-
Usage: Landline
Primary City: Baltimore
Carrier: Level 3 Communications
Introduced: 05/18/1998
Area Code: 443
Prefix: (443) 220-
Usage: Landline
Primary City: Baltimore
Carrier: Verizon Maryland
Introduced: 11/20/1998
Area Code: 443
Prefix: (443) 221-
Usage: Landline
Primary City: Annapolis
Carrier: Level 3 Communications
Introduced: 08/20/2000
Area Code: 443
Prefix: (443) 222-
Usage: Landline
Primary City: Reisterstown
Carrier: Xo Maryland
Introduced: 01/14/2000
Area Code: 443
Prefix: (443) 223-
Usage: Wireless
Primary City: Annapolis
Carrier: Cellco Partnership DBA Verizon Wireless
Introduced: 10/13/1999
Area Code: 443
Prefix: (443) 224-
Usage: Landline
Primary City: Baltimore
Carrier: Mci Worldcom Communications
Introduced: 05/10/1999
Area Code: 443
Prefix: (443) 225-
Usage: Landline
Primary City: Cambridge
Carrier: Sprint Spectrum L.p.
Introduced: 01/20/2004
Area Code: 443
Prefix: (443) 226-
Usage: Wireless
Primary City: Baltimore
Carrier: Sprint Spectrum L.p.
Introduced: 08/14/1998
Area Code: 443
Prefix: (443) 227-
Usage: Landline
Primary City: Port Deposit
Carrier: Ctc Communications Corp.
Introduced: 01/14/2000
Area Code: 443
Prefix: (443) 228-
Usage: Landline
Primary City: Middle River
Carrier: Us Lec Of Maryland
Introduced: 06/30/2001
Area Code: 443
Prefix: (443) 229-
Usage: Landline
Primary City: Severna Park
Carrier: Cavalier Telephone Mid-atlantic
Introduced: 05/10/2001
Area Code: 443
Prefix: (443) 230-
Usage: Landline
Primary City: Odenton
Carrier: Ctc Communications Corp.
Introduced: 01/14/2000
Area Code: 443
Prefix: (443) 231-
Usage: Landline
Primary City: Baltimore
Carrier: AT&T; Local
Introduced: 08/14/1998
Area Code: 443
Prefix: (443) 232-
Usage: Landline
Primary City: Willards
Carrier: Cavalier Telephone (mid-atlantic)
Introduced: 11/20/1998
Area Code: 443
Prefix: (443) 233-
Usage: Landline
Primary City: Mardela Springs
Carrier: Cavalier Telephone (mid-atlantic)
Introduced: 11/20/1998
Area Code: 443
Prefix: (443) 234-
Usage: Landline
Primary City: Snow Hill
Carrier: Cavalier Telephone (mid-atlantic)
Introduced: 11/20/1998
Area Code: 443
Prefix: (443) 235-
Usage: Wireless
Primary City: Salisbury
Carrier: Cellco Partnership DBA Verizon Wireless
Introduced: 10/13/1999
Area Code: 443
Prefix: (443) 236-
Usage: Landline
Primary City: Cardiff
Carrier: Core Communications
Introduced: 01/14/2000
Area Code: 443
Prefix: (443) 237-
Usage: Landline
Primary City: North Beach
Carrier: Core Communications
Introduced: 01/14/2000
Area Code: 443
Prefix: (443) 238-
Usage: Landline
Primary City: Parkton
Carrier: Ctc Communications Corp.
Introduced: 01/14/2000
Area Code: 443
Prefix: (443) 239-
Usage: Wireless
Primary City: Easton
Carrier: New Cingular Wireless PCS - DC
Introduced: 01/20/2004
Area Code: 443
Prefix: (443) 240-
Usage: Wireless
Primary City: Baltimore
Carrier: New Cingular Wireless PCS - DC
Introduced: 01/27/2012
Area Code: 443
Prefix: (443) 241-
Usage: Landline
Primary City: Westminster
Carrier: Global Naps South
Introduced: 01/14/2000
Area Code: 443
Prefix: (443) 242-
Usage: Landline
Primary City: Sparrows Point
Carrier: Cavalier Telephone Mid-atlantic
Introduced: 05/10/2001
Area Code: 443
Prefix: (443) 243-
Usage: Wireless
Primary City: Fallston
Carrier: Cellco Partnership DBA Verizon Wireless
Introduced: 10/13/1999
Area Code: 443
Prefix: (443) 244-
Usage: Landline
Primary City: Westminster
Carrier: Level 3 Communications
Introduced: 10/13/1999
Area Code: 443
Prefix: (443) 245-
Usage: Landline
Primary City: Elkton
Carrier: Cavalier Telephone (mid-atlantic)
Introduced: 02/27/1999
Area Code: 443
Prefix: (443) 246-
Usage: Landline
Primary City: Elkton
Carrier: Core Communications
Introduced: 01/14/2000
Area Code: 443
Prefix: (443) 247-
Usage: Landline
Primary City: Union Bridge
Carrier: Ctc Communications Corp.
Introduced: 01/14/2000
Area Code: 443
Prefix: (443) 248-
Usage: Wireless
Primary City: Catonsville
Carrier: Cellco Partnership DBA Verizon Wireless
Introduced: 01/15/2007
Area Code: 443
Prefix: (443) 249-
Usage: Landline
Primary City: Stevensville
Carrier: Verizon Maryland
Introduced: 07/22/1999
Area Code: 443
Prefix: (443) 250-
Usage: Wireless
Primary City: Baltimore
Carrier: Sprint Spectrum L.p.
Introduced: 08/14/1998