The 520 area code is a telephone area code serving Tucson and most of the southeastern part of the state of Arizona. To start a free reverse phone lookup, simply enter the full 10-digit number (including the 520 area code) below and access available caller information such as name, address, and more.
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Area code 520 covers Tucson and the majority of southeastern Arizona.
Area code 520 was created in 1995 from a split of area code 602. In 2001, area code 928 was created from another split of 520. Prior to October 24, 2021, area code 520 transitioned to ten-digit dialing.
Area code 520 is a General Purpose Code which was placed in service on January 1, 1947.
Our reverse phone lookup will analyze the three-digit prefix of any 520 area code phone number and will show which telecommunications company and rate center it was initially assigned to. This prefix code data may help to determine the U.S. carrier, Arizona geographic region, and local calling area associated with the phone number.
| Company | Number of Prefixes |
|---|---|
| QWEST CORPORATION | 179 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 68 |
| T-MOBILE USA, INC. | 52 |
| NEW CINGULAR WIRELESS PCS, LLC | 36 |
| ONVOY, LLC - AZ | 12 |
| LEVEL 3 TELECOM OF ARIZONA, LLC - AZ | 11 |
| LEVEL 3 COMMUNICATIONS, LLC - AZ | 9 |
| ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 8 |
| BANDWIDTH.COM CLEC, LLC - AZ | 6 |
| COMCAST IP PHONE, LLC | 6 |
| VALLEY TEL COOP INC | 6 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC - AZ | 5 |
| GILA RIVER TELECOMM, INC. | 4 |
| METROPCS, INC. | 4 |
| AT&T - LOCAL | 3 |
| CENTURYLINK COMMUNICATIONS, LLC | 3 |
| TOHONO O'ODHAM UTILITY AUTHORITY | 3 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | 2 |
| XO ARIZONA, INC. | 2 |
| YMAX COMMUNICATIONS CORP. - AZ | 2 |
| ARIZONA TEL. CO. | 1 |
| COMMIO, LLC | 1 |
| COMMNET WIRELESS, LLC | 1 |
| GILA LOCAL EXCHANGE CARRIER, INC. - AZ | 1 |
| GLOBAL CROSSING LOCAL SERVICES, INC. - AZ | 1 |
| MCLEODUSA TELECOMMUNICATION SERVICES, INC. - AZ | 1 |
| MIDVALE TELEPHONE EXCHANGE, INC. | 1 |
| NUSO, LLC | 1 |
| ONVOY SPECTRUM, LLC | 1 |
| PEERLESS NETWORK OF ARIZONA, LLC - AZ | 1 |
| TABLE TOP TELEPHONE COMPANY | 1 |
| TELNYX LLC | 1 |
| VALLEY CONNECTIONS, L.L.C. - AZ | 1 |
| VONAGE AMERICA LLC | 1 |
| Rate Center | Number of Prefixes |
|---|---|
| TUCSON | 306 |
| CASAGRANDE | 36 |
| SIERRAVIST | 28 |
| NOGALES | 15 |
| BENSON | 8 |
| DOUGLAS | 5 |
| SAN MANUEL | 5 |
| WILLCOX | 5 |
| BISBEE | 3 |
| HAYDEN | 2 |
| SACATON | 2 |
| SELLS | 2 |
| SUPERIOR | 2 |
| AJO | 1 |
| BLACKWATER | 1 |
| BOWIE | 1 |
| CASABLANCA | 1 |
| CASCABEL | 1 |
| ELFRIDA | 1 |
| KOMATKE | 1 |
| PEARCE | 1 |
| PORTAL | 1 |
| SAN SIMON | 1 |
| SANTA ROSA | 1 |
| SASABE | 1 |
| SUNIZONA | 1 |
| TOMBSTONE | 1 |
| W SANSIMON | 1 |
| WHITLOW | 1 |
Lookup phone numbers starting with other Arizona area codes:
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