Prefix 602-503 — Phoenix, AZ
Numbers in the 602-503 prefix are registered to the Phoenix rate center in AZ, inside area code 602. The prefix is the second block of a ten-digit US number (602-503-XXXX) and pins the number to a billing locality.
The assigned code holder is T-MOBILE USA, INC., operating company number 6529, assigned August 21, 2007. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
The rate center lies in the Phoenix-Mesa-Chandler, AZ Metropolitan Statistical Area. The serving LATA is 666. Local time follows the Mountain zone.
Spoofing means this prefix on your screen doesn't guarantee a Phoenix caller. Verify independently before trusting a request for money or data.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 602-500 | Phoenix | ONVOY, LLC - AZ |
| 602-501 | Phoenix | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
| 602-502 | Phoenix | T-MOBILE USA, INC. |
| 602-504 | Phoenix | QWEST CORPORATION |
| 602-505 | Phoenix | T-MOBILE USA, INC. |
| 602-506 | Phoenix | QWEST CORPORATION |
FAQ
Where is 602-503 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 602-503 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 602-503 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.