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NDC: 240

This is the National Destination Code(NDC):240 page list. Its detail is as below.
Area code 240 was first put in service June 1, 1997. Currently, the largest city it serves is Germantown, MD, and it overlaps coverage areas with area codes 227 and 301.
Prefix State Primary city Usage Carrier
(240) 200- Maryland Mount Rainier Landline Bandwidth.com Clec
(240) 201- Maryland Ridge Landline Peerless Network Of The District Of Columbia, Dc
(240) 203- Maryland Hagerstown Wireless Sprint Spectrum L.p.
(240) 204- Maryland Bethesda Wireless Cellco Partnership DBA Verizon Wireless
(240) 205- Maryland Cabin John Wireless New Cingular Wireless PCS - DC
(240) 206- Maryland Glenn Dale Landline Xo Maryland
(240) 207- Maryland Damascus Landline Cavalier East LLC
(240) 208- Maryland La Plata Landline Peerless Network Of The District Of Columbia, Dc
(240) 209- Maryland Indian Head Landline Peerless Network Of The District Of Columbia, Dc
(240) 210- Maryland Waldorf Wireless New Cingular Wireless PCS - DC
(240) 212- Maryland Oakland Landline Core Communications
(240) 213- Maryland Waldorf Landline Peerless Network Of The District Of Columbia, Dc
(240) 214- Maryland Mechanicsville Landline Peerless Network Of The District Of Columbia, Dc
(240) 215- Maryland Frederick Landline Telcove Operations
(240) 216- Maryland Waldorf Wireless Sprint Spectrum L.p.
(240) 217- Maryland Hagerstown Wireless Omnipoint Communications Cap Operations
(240) 218- Maryland Nanjemoy Landline Peerless Network Of The District Of Columbia, Dc
(240) 220- Maryland Poolesville Landline Peerless Network Of Maryland
(240) 221- Maryland Rockville Landline Verizon Maryland
(240) 222- Maryland Waldorf Landline Cavalier Telephone Mid-atlantic
(240) 223- Maryland Mount Rainier Landline Allegiance Telecom
(240) 224- Maryland Gaithersburg Wireless Cellco Partnership DBA Verizon Wireless
(240) 225- Maryland Frederick Landline Core Communications
(240) 228- Maryland Laurel Landline Verizon Maryland
(240) 229- Maryland Waldorf Landline Broadwing Communications. LLC
(240) 230- Maryland Hughesville Landline Global Crossing Local Services-md
(240) 231- Maryland Hagerstown Landline Core Communications
(240) 232- Maryland Mount Rainier Landline Broadwing Communications. LLC
(240) 233- Maryland Newburg Landline Teleport Communications America - DC
(240) 234- Maryland Mount Rainier Wireless Cellco Partnership DBA Verizon Wireless
(240) 235- Maryland Bethesda Landline Paetec Communications
(240) 236- Maryland Frederick Landline Verizon Maryland
(240) 237- Maryland Callaway Landline Teleport Communications America - DC
(240) 238- Maryland Rockville Landline Paetec Communications
(240) 239- Maryland Leonardtown Landline Core Communications
(240) 241- Maryland Chevy Chase Landline Starpower Communications
(240) 242- Maryland Kensington Landline Starpower Communications
(240) 243- Maryland Gaithersburg Landline Allegiance Telecom
(240) 244- Maryland Mount Rainier Landline Starpower Communications
(240) 245- Maryland Glenn Dale Landline Starpower Communications
(240) 246- Maryland Gaithersburg Landline Starpower Communications
(240) 247- Maryland Mount Rainier Landline Allegiance Telecom
(240) 248- Maryland Ridge Landline Peerless Network Of Maryland
(240) 249- Maryland Mechanicsville Landline Teleport Communications America - DC
(240) 250- Maryland Brandywine Landline Peerless Network Of Maryland
(240) 251- Maryland Highfield Landline Core Communications
(240) 252- Maryland Gaithersburg Landline Level 3 Communications
(240) 253- Maryland Mount Rainier Landline Global Crossing Local Services-md
(240) 254- Maryland Hughesville Landline Teleport Communications America - DC
(240) 255- Maryland Poolesville Landline Peerless Network Of Maryland
(240) 256- Maryland Leonardtown Landline Teleport Communications America - DC
(240) 257- Maryland Nanjemoy Landline Teleport Communications America - DC
(240) 258- Maryland Ridge Landline Teleport Communications America - DC
(240) 260- Maryland Mount Rainier Landline Allegiance Telecom
(240) 262- Maryland Callaway Wireless Sprint Spectrum L.p.
(240) 263- Maryland Bethesda Wireless Sprint Spectrum L.p.
(240) 264- Maryland Beltsville Landline Verizon Maryland
(240) 265- Maryland Bethesda Wireless Sprint Spectrum L.p.
(240) 266- Maryland Mount Rainier Landline Peerless Network Of Maryland
(240) 268- Maryland Rockville Landline Allegiance Telecom
(240) 269- Maryland Mount Rainier Landline Peerless Network Of Maryland
(240) 270- Maryland Waldorf Wireless Cellco Partnership DBA Verizon Wireless
(240) 271- Maryland Bethesda Wireless New Cingular Wireless PCS - DC
(240) 272- Maryland Bethesda Wireless Sprint Spectrum L.p.
(240) 273- Maryland Mount Rainier Landline Broadwing Communications. LLC
(240) 274- Maryland Bethesda Wireless New Cingular Wireless PCS - DC
(240) 275- Maryland Grantsville Landline Core Communications
(240) 276- Maryland Rockville Landline Verizon Maryland
(240) 277- Maryland Bethesda Wireless Sprint Spectrum L.p.
(240) 278- Maryland Laurel Wireless Cellco Partnership DBA Verizon Wireless
(240) 279- Maryland Waldorf Landline Core Communications
(240) 280- Maryland Laurel Landline Comcast Phone Of Northern Maryland
(240) 281- Maryland Bethesda Wireless New Cingular Wireless PCS - DC
(240) 282- Maryland Mechanicsville Landline Peerless Network Of Maryland
(240) 283- Maryland Kensington Landline Paetec Communications
(240) 284- Maryland Frostburg Landline Level 3 Communications
(240) 285- Maryland Frederick Landline Cellco Partnership DBA Verizon Wireless
(240) 286- Maryland Bethesda Wireless Sprint Spectrum L.p.
(240) 287- Maryland Hancock Landline Core Communications
(240) 288- Maryland Thurmont Landline Comcast Phone Of Northern Maryland
(240) 289- Maryland Oxon Hill Landline Cavalier Telephone Mid-atlantic
(240) 290- Maryland Mount Rainier Landline Allegiance Telecom
(240) 291- Maryland Hagerstown Wireless New Cingular Wireless PCS - DC
(240) 292- Maryland Kensington Landline Verizon Maryland
(240) 293- Maryland Mount Rainier Landline Starpower Communications
(240) 294- Maryland Laurel Landline Xo Maryland
(240) 295- Maryland Laurel Landline Cavalier Telephone Mid-atlantic
(240) 296- Maryland Hyattsville Landline Cavalier Telephone Mid-atlantic
(240) 297- Maryland College Park Landline Level 3 Communications
(240) 298- Maryland Leonardtown Wireless Cellco Partnership DBA Verizon Wireless
(240) 299- Maryland Waldorf Wireless Sprint Spectrum L.p.
(240) 300- Maryland Waldorf Wireless Cellco Partnership DBA Verizon Wireless
(240) 303- Maryland Clinton Landline Cavalier Telephone Mid-atlantic
(240) 304- Maryland Mount Rainier Wireless Sprint Spectrum L.p.
(240) 305- Maryland Beltsville Wireless Sprint Spectrum L.p.
(240) 306- Maryland Gaithersburg Landline Allegiance Telecom
(240) 307- Maryland Emmitsburg Landline AT&T Local
(240) 308- Maryland Damascus Wireless New Cingular Wireless PCS - DC
(240) 309- Maryland Leonardtown Wireless Cellco Partnership DBA Verizon Wireless
(240) 310- Maryland Hagerstown Wireless Uscoc Of Cumberland DBA United States Cel Md