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Area Code 443

 

Maryland area code 443 has been in service since 1991. It has 370 landlines and 197 wireless prefixes (exchanges) serviced by 39 carriers. It covers 14 counties, 451 ZIP codes, and 83 cities, including Baltimore, Columbia, Annapolis, Salisbury, Owings Mills, Dundalk, Essex, Windsor Mill, and Bel Air.

State:
Maryland
Time Zone:
Eastern (2:42 am)

Area Code (443) has 567 prefixes

Prefix County City Company/Carrier Line Type
(443) 200- Baltimore Windsor Mill Allegiance Telecom, Inc. - Md Landline
(443) 203- Anne Arundel Edgewater Verizon Maryland, Inc. Landline
(443) 204- Baltimore Randallstown New Cingular Wireless Pcs,... Cell Phone
(443) 205- Dorchester Cambridge Nextel Communications, Inc. Cell Phone
(443) 206- Harford Aberdeen Cellco Partnership Dba Veri... Cell Phone
(443) 207- Cecil North East Omnipoint Communications En... Cell Phone
(443) 209- Harford Havre De Grace Cavalier Telephone, Llc (mi... Landline
(443) 212- Baltimore Sparks Glencoe Us Lec Of Maryland, Inc. Landline
(443) 213- Baltimore City Baltimore Verizon Maryland, Inc. Landline
(443) 215- Kent Chestertown Core Communications, Inc. - Md Landline
(443) 216- Baltimore Dundalk Cavalier Telephone Mid-atla... Landline
(443) 219- Baltimore Nottingham Level 3 Communications, Llc... Landline
(443) 220- Baltimore City Baltimore Verizon Maryland, Inc. Landline
(443) 221- Anne Arundel Annapolis Level 3 Communications, Llc... Landline
(443) 223- Anne Arundel Annapolis Cellco Partnership Dba Veri... Cell Phone
(443) 224- Baltimore City Baltimore Mci Worldcom Communications... Landline
(443) 225- Dorchester Cambridge Nextel Communications, Inc. Cell Phone
(443) 226- Baltimore City Baltimore Sprint Spectrum L.p. Cell Phone
(443) 227- Carroll Westminster Global Naps South, Inc. - Md Landline
(443) 229- Prince Georges Hyattsville Cavalier Telephone Mid-atla... Landline
(443) 231- Baltimore Essex At&t Local Landline
(443) 232- Wicomico Pittsville Cavalier Telephone, Llc (mi... Landline
(443) 233- Dorchester Vienna Cavalier Telephone, Llc (mi... Landline
(443) 234- Worcester Snow Hill Cavalier Telephone, Llc (mi... Landline
(443) 235- Wicomico Salisbury Cellco Partnership Dba Veri... Cell Phone
(443) 239- Talbot Trappe New Cingular Wireless Pcs,... Cell Phone
(443) 241- Baltimore Catonsville Global Naps South, Inc. - Md Landline
(443) 242- Baltimore Dundalk Cavalier Telephone Mid-atla... Landline
(443) 243- Harford Bel Air Cellco Partnership Dba Veri... Cell Phone
(443) 244- Carroll Westminster Level 3 Communications, Llc... Landline
(443) 245- Cecil Elkton Cavalier Telephone, Llc (mi... Landline
(443) 247- Baltimore City Baltimore Global Naps South, Inc. - Md Landline
(443) 248- Baltimore City Baltimore Cellco Partnership Dba Veri... Cell Phone
(443) 249- Queen Annes Stevensville Verizon Maryland, Inc. Landline
(443) 250- Baltimore City Baltimore Nextel Communications, Inc. Cell Phone
(443) 253- Baltimore City Baltimore New Cingular Wireless Pcs,... Cell Phone
(443) 254- Anne Arundel Glen Burnie Omnipoint Communications Ca... Cell Phone
(443) 255- Baltimore City Baltimore New Cingular Wireless Pcs,... Cell Phone
(443) 257- Howard Columbia Cellco Partnership Dba Veri... Cell Phone
(443) 259- Howard Columbia Verizon Maryland, Inc. Landline
(443) 260- Wicomico Salisbury Verizon Maryland, Inc. Landline
(443) 261- Anne Arundel Severna Park Mci Worldcom Communications... Landline
(443) 262- Queen Annes Centreville Verizon Maryland, Inc. Landline
(443) 263- Baltimore City Baltimore Verizon Maryland, Inc. Landline
(443) 265- Harford Bel Air Cavalier Telephone Mid-atla... Landline
(443) 266- Howard Woodbine Global Crossing Local Servi... Landline
(443) 267- Baltimore City Baltimore Teleport Communications Gro... Landline
(443) 269- Baltimore City Baltimore Global Naps South, Inc. - Md Landline
(443) 270- Anne Arundel Glen Burnie Paetec Communications, Inc.... Landline
(443) 271- Baltimore City Baltimore Nextel Communications, Inc. Cell Phone
(443) 272- Baltimore Randallstown Teleport Communications Gro... Landline
(443) 273- Baltimore Reisterstown Teleport Communications Gro... Landline
(443) 274- Anne Arundel Severn Verizon Maryland, Inc. Landline
(443) 275- Baltimore Towson Comcast Phone Of Northern M... Landline
(443) 276- Howard Columbia Allegiance Telecom, Inc. - Md Landline
(443) 277- Baltimore City Baltimore Nextel Communications, Inc. Cell Phone
(443) 278- Baltimore City Baltimore Vdl, Inc. Dba Global Teleco... Landline
(443) 279- Baltimore Towson Allegiance Telecom, Inc. - Md Landline
(443) 280- Baltimore City Baltimore New Cingular Wireless Pcs,... Cell Phone
(443) 281- Baltimore Cockeysville Allegiance Telecom, Inc. - Md Landline
(443) 282- Kent Chestertown Nextel Communications, Inc. Cell Phone
(443) 283- Howard Columbia Paetec Communications, Inc.... Landline
(443) 285- Howard Columbia Verizon Maryland, Inc. Landline
(443) 286- Baltimore City Baltimore Cellco Partnership Dba Veri... Cell Phone
(443) 287- Baltimore City Baltimore Verizon Maryland, Inc. Landline
(443) 288- Howard Ellicott City Allegiance Telecom, Inc. - Md Landline
(443) 290- Howard Columbia Tw Telecom Of Maryland Llc... Landline
(443) 291- Carroll Hampstead Global Crossing Local Servi... Landline
(443) 292- Anne Arundel Crofton Level 3 Communications, Llc... Landline
(443) 293- Carroll Westminster Global Crossing Local Servi... Landline
(443) 294- Howard Ellicott City Global Crossing Local Servi... Landline
(443) 295- Calvert Prince Frederick Level 3 Communications, Llc... Landline
(443) 296- Howard Elkridge Global Crossing Local Servi... Landline
(443) 297- Baltimore City Baltimore Teleport Communications Gro... Landline
(443) 298- Dorchester Cambridge New Cingular Wireless Pcs,... Cell Phone
(443) 299- Harford Fallston Global Crossing Local Servi... Landline
(443) 300- Carroll Sykesville Broadwing Communications. L... Landline
(443) 302- Anne Arundel Crofton Global Crossing Local Servi... Landline
(443) 303- Harford Aberdeen Global Crossing Local Servi... Landline
(443) 304- Baltimore Halethorpe Global Crossing Local Servi... Landline
(443) 305- Anne Arundel Pasadena Global Crossing Local Servi... Landline
(443) 306- Anne Arundel Glen Burnie Sprint Spectrum L.p. Cell Phone
(443) 307- Harford Bel Air Global Crossing Local Servi... Landline
(443) 308- Anne Arundel Millersville Allegiance Telecom, Inc. - Md Landline
(443) 309- Cecil Elkton Nextel Communications, Inc. Cell Phone
(443) 310- Baltimore City Baltimore New Cingular Wireless Pcs,... Cell Phone
(443) 312- Baltimore City Brooklyn Global Crossing Local Servi... Landline
(443) 315- Baltimore Catonsville Global Crossing Local Servi... Landline
(443) 316- Baltimore Windsor Mill Global Crossing Local Servi... Landline
(443) 317- Baltimore Middle River Global Crossing Local Servi... Landline
(443) 318- Baltimore Cockeysville Cavalier Telephone, Llc (mi... Landline
(443) 319- Howard Columbia Cavalier Telephone, Llc (mi... Landline
(443) 320- Baltimore City Baltimore Global Crossing Local Servi... Landline
(443) 321- Anne Arundel Annapolis Paetec Communications, Inc.... Landline
(443) 322- Baltimore Towson Cavalier Telephone Mid-atla... Landline
(443) 323- Wicomico Mardela Springs Cavalier Telephone, Llc (mi... Landline
(443) 324- Baltimore City Baltimore Nextel Communications, Inc. Cell Phone
(443) 325- Howard Ellicott City Cavalier Telephone Mid-atla... Landline
(443) 326- Baltimore City Baltimore New Cingular Wireless Pcs,... Cell Phone
(443) 327- Harford Aberdeen Cavalier Telephone Mid-atla... Landline

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