| District of Arizona area codes: 520 | |
|---|---|
| Country | United States |
| State/Province | Arizona |
| Major City | Phoenix |
| Time Zone | Mountain (UTC-07:00) |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 520-268 | Pima | Tucson, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-269 | Pima | Tucson, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-270 | Pima | Tucson, AZ | T-mobile Usa |
| 520-271 | Maricopa | Phoenix, AZ | Sprint Spectrum L.p. |
| 520-272 | Pima | Tucson, AZ | Leap Wireless Intl DBA Cricket Comm |
| 520-275 | Pima | Tucson, AZ | New Cingular Wireless PCS |
| 520-277 | Pima | Tucson, AZ | Broadvox-clec |
| 520-279 | Pima | Tucson, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-280 | Maricopa | Phoenix, AZ | Sprint Spectrum L.p. |
| 520-281 | Santa Cruz | Nogales, AZ | Qwest Corporation |
| 520-282 | Pima | Tucson, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-284 | Pima | Tucson, AZ | Xo Arizona |
| 520-285 | Santa Cruz | Nogales, AZ | Qwest Corporation |
| 520-286 | Pima | Tucson, AZ | Sprint Spectrum L.p. |
| 520-287 | Santa Cruz | Nogales, AZ | Qwest Corporation |
| 520-288 | Pima | Tucson, AZ | New Cingular Wireless PCS |
| 520-289 | Pima | Tucson, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-290 | Pima | Tucson, AZ | Qwest Corporation |
| 520-291 | Pima | Tucson, AZ | Qwest Corporation |
| 520-292 | Pima | Tucson, AZ | Qwest Corporation |
There are 477 prefixes, In the code area, the major cities are Casa Adobes, AZ;Casa Grande, AZ;Catalina Foothills. The major city is Phoenix.