Prefix 602-637 — Phoenix, AZ
602-637 identifies a block of numbers in Phoenix, AZ, within the 602 area code. Every US prefix is tied to exactly one rate center; this one is Phoenix.
The rate center lies in the Phoenix-Mesa-Chandler, AZ Metropolitan Statistical Area. The serving LATA is 666. Local time follows the Mountain zone.
Treat the on-screen number as a hint, not evidence — 602-637 can be spoofed like any US prefix. If a call feels off, verify through an official callback number and file a complaint with the FCC or FTC.
Code-holder of record: T-MOBILE USA, INC. (OCN 6529), assigned January 11, 2023. The prefix is pooled: its ten thousands-blocks can be shared among several carriers, so different 602-637 numbers may be served by different companies.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 602-634 | Phoenix | QWEST CORPORATION |
| 602-635 | Phoenix | TELEPORT COMMUNICATIONS AMERICA, LLC - AZ |
| 602-636 | Phoenix | QWEST CORPORATION |
| 602-638 | Phoenix | T-MOBILE USA, INC. |
| 602-639 | Phoenix | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
| 602-640 | Phoenix | QWEST CORPORATION |
FAQ
Where is 602-637 located?
The prefix is assigned to the Phoenix rate center in AZ, area code 602. It is part of the Phoenix-Mesa-Chandler, AZ Metropolitan Statistical Area.
Which company owns 602-637 numbers?
T-MOBILE USA, INC. holds the code, but the prefix is pooled — individual thousands-blocks can be assigned to other carriers, and numbers may be ported to any provider.
Is a call from 602-637 safe to answer?
The prefix itself says nothing about the caller. Legitimate Phoenix businesses and spoofed robocalls can both display it. Never share personal data with an unverified inbound caller.