| 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 |
|---|---|---|---|
| 520-388 | Pima | Tucson, AZ | Qwest Corporation |
| 520-390 | Maricopa | Phoenix, AZ | Sprint Spectrum L.p. |
| 520-391 | Maricopa | Scottsdale, AZ | Electric Lightwave DBA Integra Telecom |
| 520-392 | Pima | Tucson, AZ | Leap Wireless Intl DBA Cricket Comm |
| 520-393 | Pima | Green Valley, AZ | Qwest Corporation |
| 520-394 | Santa Cruz | Nogales, AZ | Qwest Corporation |
| 520-395 | Pima | Marana, AZ | Comcast Phone Of Arizona |
| 520-396 | Pima | Tucson, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-397 | Santa Cruz | Nogales, AZ | Qwest Corporation |
| 520-398 | Santa Cruz | Tubac, AZ | Qwest Corporation |
| 520-399 | Pima | Green Valley, AZ | Qwest Corporation |
| 520-400 | Pima | Tucson, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-401 | Pima | Tucson, AZ | Sprint Spectrum L.p. |
| 520-403 | Pima | Tucson, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-404 | Pima | Tucson, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-405 | Pima | Tucson, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-406 | Pima | Tucson, AZ | Leap Wireless Intl DBA Cricket Comm |
| 520-407 | Pima | Tucson, AZ | Qwest Corporation |
| 520-408 | Pima | Tucson, AZ | Qwest Corporation |
| 520-409 | Pima | Tucson, AZ | Leap Wireless Intl DBA Cricket Comm |
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.