| 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 |
|---|---|---|---|
| 520-954 | Pima | Tucson, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-955 | Pima | Tucson, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-971 | Maricopa | Phoenix, AZ | Sprint Spectrum L.p. |
| 520-975 | Pima | Tucson, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-977 | Maricopa | Phoenix, AZ | Sprint Spectrum L.p. |
| 520-979 | Maricopa | Phoenix, AZ | Sprint Spectrum L.p. |
| 520-980 | Santa Cruz | Nogales, AZ | Sprint Spectrum L.p. |
| 520-981 | Pima | Tucson, AZ | Sprint Spectrum L.p. |
| 520-982 | Maricopa | Phoenix, AZ | Sprint Spectrum L.p. |
| 520-987 | Santa Cruz | Nogales, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-988 | Santa Cruz | Nogales, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-989 | Maricopa | Scottsdale, AZ | Electric Lightwave DBA Integra Telecom |
| 520-990 | Maricopa | Phoenix, AZ | Sprint Spectrum L.p. |
| 520-991 | Maricopa | Phoenix, AZ | Sprint Spectrum L.p. |
| 520-993 | Pima | Sells, AZ | Cellco Partnership DBA Verizon Wireless |
| 520-999 | Pima | Tucson, AZ | 360networks (usa) Inc. |
| 520-555 | Used in movie | Hayden, AZ | Used in movie |
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.