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NDC: 520

This is the National Destination Code(NDC):520 page list. Its detail is as below.
Area code 520 was first put in service March 19, 1995. In 2001, area code 520 was split, and some of the phone numbers had to be updated to area code 928 on that date. Currently, the largest city it serves is Tucson, AZ, and it overlaps coverage areas with area code .
Prefix State Primary city Usage Carrier
(520) 314- Arizona Tucson Landline Level 3 Communications
(520) 315- Arizona Chandler Landline Gila River Telecomm
(520) 316- Arizona Casa Grande Landline Qwest Corporation
(520) 318- Arizona Tucson Landline Qwest Corporation
(520) 319- Arizona Tucson Landline Qwest Corporation
(520) 320- Arizona Tucson Landline Qwest Corporation
(520) 321- Arizona Tucson Landline Qwest Corporation
(520) 322- Arizona Tucson Landline Qwest Corporation
(520) 323- Arizona Tucson Landline Qwest Corporation
(520) 324- Arizona Tucson Landline Qwest Corporation
(520) 325- Arizona Tucson Landline Qwest Corporation
(520) 326- Arizona Tucson Landline Qwest Corporation
(520) 327- Arizona Tucson Landline Qwest Corporation
(520) 328- Arizona Unknown Qwest Corporation
(520) 329- Arizona Tucson Landline Teleport Communications America
(520) 331- Arizona Tucson Wireless T-mobile Usa
(520) 332- Arizona Tucson Wireless Sprint Spectrum L.p.
(520) 333- Arizona Tucson Landline Xo Arizona
(520) 334- Arizona Tucson Wireless Cellco Partnership DBA Verizon Wireless
(520) 335- Arizona Tucson Landline Cox Arizona Telcom
(520) 336- Arizona Tucson Wireless Leap Wireless Intl DBA Cricket Comm
(520) 337- Arizona Willcox Landline Level 3 Communications
(520) 338- Arizona Tucson Landline Broadvox-clec
(520) 339- Arizona Tucson Wireless Leap Wireless Intl DBA Cricket Comm
(520) 342- Arizona Tucson Landline 360networks (usa) Inc.
(520) 343- Arizona Miami Wireless Cellco Partnership DBA Verizon Wireless
(520) 344- Arizona Tucson Landline Leap Wireless Intl DBA Cricket Comm
(520) 345- Arizona Tucson Wireless Cellco Partnership DBA Verizon Wireless
(520) 349- Arizona Tucson Wireless Cellco Partnership DBA Verizon Wireless
(520) 350- Arizona Chandler Landline Gila Local Exchange Carrier
(520) 351- Arizona Tucson Landline Xspedius Manangement Co. Switched Services Az
(520) 352- Arizona Scottsdale Landline Electric Lightwave DBA Integra Telecom
(520) 353- Arizona Tucson Landline Broadvox-clec
(520) 355- Arizona Tucson Landline Bandwidth.com Clec
(520) 356- Arizona Hayden Landline Qwest Corporation
(520) 357- Arizona Dudleyville Landline Qwest Corporation
(520) 358- Arizona Tucson Wireless Leap Wireless Intl DBA Cricket Comm
(520) 359- Arizona Unknown Sprint Spectrum L.p.
(520) 360- Arizona Tucson Wireless New Cingular Wireless PCS
(520) 361- Arizona Sells Landline Tohono O'odham Utility Authority
(520) 362- Arizona Ajo Landline Tohono O'odham Utility Authority
(520) 363- Arizona Kearny Landline Qwest Corporation
(520) 364- Arizona Douglas Landline Qwest Corporation
(520) 365- Arizona Tucson Wireless Sprint Spectrum L.p.
(520) 366- Arizona Hereford Landline Qwest Corporation
(520) 368- Arizona Douglas Landline Qwest Corporation
(520) 369- Arizona Tucson Landline Level 3 Communications
(520) 370- Arizona Phoenix Wireless Sprint Spectrum L.p.
(520) 371- Arizona Casa Grande Wireless Sprint Spectrum L.p.
(520) 373- Arizona Tucson Wireless T-mobile Usa
(520) 374- Arizona Casa Grande Landline Qwest Corporation
(520) 375- Arizona Nogales Landline Qwest Corporation
(520) 377- Arizona Nogales Landline Qwest Corporation
(520) 378- Arizona Sierra Vista Landline Qwest Corporation
(520) 381- Arizona Scottsdale Landline Electric Lightwave DBA Integra Telecom
(520) 382- Arizona Tucson Landline Xspedius Manangement Co. Switched Services Az
(520) 383- Arizona Sells Landline Tohono O'odham Utility Authority
(520) 384- Arizona Willcox Landline Qwest Corporation
(520) 385- Arizona San Manuel Landline Qwest Corporation
(520) 387- Arizona Ajo Landline Table Top Telephone Co.
(520) 388- Arizona Tucson Landline Qwest Corporation
(520) 390- Arizona Phoenix Wireless Sprint Spectrum L.p.
(520) 391- Arizona Scottsdale Landline Electric Lightwave DBA Integra Telecom
(520) 392- Arizona Tucson Wireless Leap Wireless Intl DBA Cricket Comm
(520) 393- Arizona Green Valley Landline Qwest Corporation
(520) 394- Arizona Nogales Landline Qwest Corporation
(520) 395- Arizona Marana Landline Comcast Phone Of Arizona
(520) 396- Arizona Tucson Wireless Cellco Partnership DBA Verizon Wireless
(520) 397- Arizona Nogales Landline Qwest Corporation
(520) 398- Arizona Tubac Landline Qwest Corporation
(520) 399- Arizona Green Valley Landline Qwest Corporation
(520) 400- Arizona Tucson Wireless Cellco Partnership DBA Verizon Wireless
(520) 401- Arizona Tucson Wireless Sprint Spectrum L.p.
(520) 403- Arizona Tucson Wireless Cellco Partnership DBA Verizon Wireless
(520) 404- Arizona Tucson Wireless Cellco Partnership DBA Verizon Wireless
(520) 405- Arizona Tucson Wireless Cellco Partnership DBA Verizon Wireless
(520) 406- Arizona Tucson Wireless Leap Wireless Intl DBA Cricket Comm
(520) 407- Arizona Tucson Landline Qwest Corporation
(520) 408- Arizona Tucson Landline Qwest Corporation
(520) 409- Arizona Tucson Wireless Leap Wireless Intl DBA Cricket Comm
(520) 410- Arizona Tucson Landline Qwest Corporation
(520) 413- Arizona Phoenix Landline Level 3 Communications
(520) 414- Arizona Phoenix Landline Level 3 Communications
(520) 415- Arizona Tucson Landline Mcc Telephony Of The West
(520) 417- Arizona Sierra Vista Landline Qwest Corporation
(520) 418- Arizona Chandler Landline Gila River Telecomm
(520) 419- Arizona Tucson Wireless Cellco Partnership DBA Verizon Wireless
(520) 421- Arizona Casa Grande Landline Qwest Corporation
(520) 422- Arizona Tucson Landline AT&T Local
(520) 423- Arizona Casa Grande Landline Qwest Corporation
(520) 424- Arizona Stanfield Landline Qwest Corporation
(520) 425- Arizona Tucson Wireless Cellco Partnership DBA Verizon Wireless
(520) 426- Arizona Casa Grande Landline Qwest Corporation
(520) 427- Arizona Tucson Wireless Sprint Spectrum L.p.
(520) 428- Arizona Tucson Wireless New Cingular Wireless PCS
(520) 429- Arizona Tucson Wireless Cellco Partnership DBA Verizon Wireless
(520) 430- Arizona Laveen Landline Gila River Telecomm
(520) 431- Arizona Casa Grande Wireless New Cingular Wireless PCS
(520) 432- Arizona Bisbee Landline Qwest Corporation
(520) 433- Arizona Tucson Landline Level 3 Communications