Prefix 602-203 — Phoenix, AZ
The 602-203 prefix belongs to area code 602 and is anchored to the Phoenix rate center (AZ). In NANP terms, the prefix — or NXX — determines the rate center a number is billed against.
Phoenix is part of the Phoenix-Mesa-Chandler, AZ Metropolitan Statistical Area. For routing purposes it sits in LATA 666. Numbers here keep Mountain time.
The assigned code holder is NEW CINGULAR WIRELESS PCS, LLC, operating company number 6010, assigned November 7, 2024. This is a pooled prefix — expect numbers within it to be split across more than one carrier in 1,000-number blocks.
Caller ID showing 602-203 is not proof the call came from Phoenix: spoofing and porting both detach numbers from their origin. To verify a caller, hang up and dial the organization's published number, and report suspicious calls to the FTC.
Neighboring prefixes
| Prefix | Rate center | Code holder |
|---|---|---|
| 602-200 | Phoenix | QWEST CORPORATION |
| 602-201 | Phoenix | SPOK, INC. |
| 602-202 | Phoenix | SPOK, INC. |
| 602-204 | Phoenix | SPOK, INC. |
| 602-205 | Phoenix | SPOK, INC. |
| 602-206 | Phoenix | CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ |
FAQ
Where is 602-203 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 602-203 numbers?
NEW CINGULAR WIRELESS PCS, LLC 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 602-203 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.