The 623 area code is a telephone area code serving the West Valley of the Phoenix metropolitan area in Arizona. To start a free reverse phone lookup, simply enter the full 10-digit number (including the 623 area code) below and access available caller information such as name, address, and more.
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Area code 623 covers the West Valley of the Phoenix metropolitan area, plus all of Phoenix north of Union Hills.
Area codes 602, 480, and 623 are part of an overlay complex for the entire Phoenix metropolitan area. Area code 602 was established in 1947. Area codes 480 and 623 were created in 1999. Ten-digit dialing is mandatory across the Valley.
Area code 623 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 623 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 | 92 |
| CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ | 28 |
| T-MOBILE USA, INC. | 25 |
| NEW CINGULAR WIRELESS PCS, LLC | 18 |
| MCIMETRO ACCESS TRANSMISSION SERVICES LLC | 12 |
| ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM | 8 |
| BANDWIDTH.COM CLEC, LLC - AZ | 6 |
| COMCAST IP PHONE, LLC | 6 |
| ONVOY, LLC - AZ | 6 |
| TELEPORT COMMUNICATIONS AMERICA, LLC - AZ | 6 |
| LEVEL 3 COMMUNICATIONS, LLC - AZ | 5 |
| METROPCS, INC. | 5 |
| XO ARIZONA, INC. | 3 |
| LEVEL 3 TELECOM OF ARIZONA, LLC - AZ | 2 |
| PEERLESS NETWORK OF ARIZONA, LLC - AZ | 2 |
| AT&T - LOCAL | 1 |
| CENTURYLINK COMMUNICATIONS, LLC | 1 |
| GILA LOCAL EXCHANGE CARRIER, INC. - AZ | 1 |
| GLOBAL CROSSING LOCAL SERVICES, INC. - AZ | 1 |
| MCLEODUSA TELECOMMUNICATION SERVICES, INC. - AZ | 1 |
| Rate Center | Number of Prefixes |
|---|---|
| PHOENIX | 229 |
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