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NDC: 773

This is the National Destination Code(NDC):773 page list. Its detail is as below.
Area code 773 was first put in service October 12, 1996. To avoid exhausting all possible phone numbers in this area code, relief planning has begun. Currently, the largest city it serves is Chicago, IL, and it overlaps coverage areas with area code 872.
Prefix State Primary city Usage Carrier
(773) 303- Illinois Chicago Landline Allegiance Telecom
(773) 304- Illinois Chicago Landline Allegiance Telecom
(773) 305- Illinois Chicago Landline Allegiance Telecom
(773) 306- Illinois Chicago Landline AT&T Local
(773) 307- Illinois Chicago Wireless New Cingular Wireless PCS
(773) 308- Illinois Chicago Landline First Communications LLC
(773) 309- Illinois Chicago Landline Paetec Communications
(773) 310- Illinois Chicago Wireless Sprint Spectrum L.p.
(773) 312- Illinois Chicago Wireless Sprint Spectrum L.p.
(773) 313- Illinois Chicago Landline Allegiance Telecom
(773) 314- Illinois Chicago Landline Allegiance Telecom
(773) 315- Illinois Chicago Wireless New Cingular Wireless PCS
(773) 316- Illinois Chicago Wireless New Cingular Wireless PCS
(773) 317- Illinois Chicago Wireless Sprint Spectrum L.p.
(773) 318- Illinois Chicago Wireless Cellco Partnership DBA Verizon Wireless
(773) 319- Illinois Chicago Wireless Sprint Spectrum L.p.
(773) 320- Illinois Chicago Wireless New Cingular Wireless PCS
(773) 321- Illinois Chicago Landline Broadwing Communications
(773) 322- Illinois Chicago Landline T-mobile Usa
(773) 323- Illinois Chicago Wireless American Messaging (am)
(773) 324- Illinois Chicago Landline Ameritech Illinois
(773) 325- Illinois Chicago Landline Ameritech Illinois
(773) 326- Illinois Chicago Landline Broadwing Communications
(773) 327- Illinois Chicago Landline Ameritech Illinois
(773) 328- Illinois Chicago Landline First Communications LLC
(773) 329- Illinois Chicago Landline AT&T Local
(773) 330- Illinois Chicago Wireless New Cingular Wireless PCS
(773) 331- Illinois Chicago Landline Mci Worldcom Communications
(773) 332- Illinois Chicago Landline Cellco Partnership DBA Verizon Wireless
(773) 333- Illinois Chicago Wireless American Messaging (am)
(773) 334- Illinois Chicago Landline Ameritech Illinois
(773) 335- Illinois Chicago Wireless Usa Mobility Wireless
(773) 336- Illinois Chicago Landline First Communications LLC
(773) 337- Illinois Chicago Landline Allegiance Telecom
(773) 338- Illinois Chicago Landline Ameritech Illinois
(773) 339- Illinois Chicago Wireless Cellco Partnership DBA Verizon Wireless
(773) 340- Illinois Chicago Wireless Ymax Communications Corp.
(773) 341- Illinois Chicago Landline First Communications LLC
(773) 342- Illinois Chicago Landline Ameritech Illinois
(773) 343- Illinois Chicago Wireless Cellco Partnership DBA Verizon Wireless
(773) 344- Illinois Chicago Landline Mcimetro Access Transmission Services LLC
(773) 345- Illinois Chicago Landline Allegiance Telecom
(773) 346- Illinois Chicago Landline Allegiance Telecom
(773) 347- Illinois Chicago Landline Allegiance Telecom
(773) 348- Illinois Chicago Landline Ameritech Illinois
(773) 349- Illinois Chicago Landline Mcimetro Access Transmission Services LLC
(773) 350- Illinois Chicago Wireless Cellco Partnership DBA Verizon Wireless
(773) 351- Illinois Chicago Wireless New Cingular Wireless PCS
(773) 352- Illinois Chicago Wireless Usa Mobility Wireless
(773) 353- Illinois Chicago Landline Broadwing Communications
(773) 354- Illinois Chicago Wireless Sprint Spectrum L.p.
(773) 355- Illinois Chicago Landline Ovation Communications Of Illinois
(773) 356- Illinois Chicago Landline Ameritech Illinois
(773) 357- Illinois Chicago Landline First Communications LLC
(773) 358- Illinois Chicago Landline Mcimetro Access Transmission Services LLC
(773) 359- Illinois Chicago Landline Mcimetro Access Transmission Services LLC
(773) 360- Illinois Chicago Landline Broadwing Communications
(773) 361- Illinois Chicago Wireless Ameritech Illinois
(773) 362- Illinois Chicago Landline Paetec Communications
(773) 363- Illinois Chicago Landline Ameritech Illinois
(773) 364- Illinois Chicago Landline Ovation Communications Of Illinois
(773) 365- Illinois Chicago Landline Allegiance Telecom
(773) 366- Illinois Chicago Wireless T-mobile Usa
(773) 367- Illinois Chicago Wireless Sprint Spectrum L.p.
(773) 368- Illinois Chicago Wireless Sprint Spectrum L.p.
(773) 369- Illinois Chicago Wireless New Cingular Wireless PCS
(773) 370- Illinois Chicago Wireless Sprint Spectrum L.p.
(773) 371- Illinois Chicago Landline Ameritech Illinois
(773) 372- Illinois Chicago Wireless Cellco Partnership DBA Verizon Wireless
(773) 373- Illinois Chicago Landline Ameritech Illinois
(773) 374- Illinois Chicago Landline Ameritech Illinois
(773) 375- Illinois Chicago Landline Ameritech Illinois
(773) 376- Illinois Chicago Landline Ameritech Illinois
(773) 377- Illinois Chicago Landline Teleport Communications America
(773) 378- Illinois Chicago Landline Ameritech Illinois
(773) 379- Illinois Chicago Landline Ameritech Illinois
(773) 380- Illinois Park Ridge Landline Ameritech Illinois
(773) 381- Illinois Chicago Landline Ameritech Illinois
(773) 382- Illinois Chicago Landline Ovation Communications Of Illinois
(773) 383- Illinois Chicago Wireless New Cingular Wireless PCS
(773) 384- Illinois Chicago Landline Ameritech Illinois
(773) 385- Illinois Chicago Landline Ameritech Illinois
(773) 386- Illinois Chicago Wireless Sprint Spectrum L.p.
(773) 387- Illinois Chicago Wireless T-mobile Usa
(773) 388- Illinois Chicago Landline Ameritech Illinois
(773) 389- Illinois Chicago Landline Allegiance Telecom
(773) 390- Illinois Chicago Wireless Cellco Partnership DBA Verizon Wireless
(773) 391- Illinois Chicago Wireless New Cingular Wireless PCS
(773) 392- Illinois Chicago Wireless Sprint Spectrum L.p.
(773) 393- Illinois Chicago Wireless Usa Mobility Wireless
(773) 394- Illinois Chicago Landline Ameritech Illinois
(773) 395- Illinois Chicago Landline Ameritech Illinois
(773) 396- Illinois Chicago Landline Ovation Communications Of Illinois
(773) 397- Illinois Chicago Wireless Cricket Communications
(773) 398- Illinois Chicago Wireless Sprint Spectrum L.p.
(773) 399- Illinois Park Ridge Landline Ameritech Illinois
(773) 400- Illinois Chicago Wireless American Messaging (am)
(773) 401- Illinois Chicago Wireless New Cingular Wireless PCS
(773) 402- Illinois Chicago Wireless New Cingular Wireless PCS
(773) 403- Illinois Chicago Wireless Sprint Spectrum L.p.