602 area code — Phoenix, AZ geographic

Data: NANPA public reports, current as of July 28, 2026.

The 602 area code covers Phoenix, Arizona, Mountain time zone, and dates back to January 1, 1947. Together with 480, 623 it forms the 480/602/623 overlay. Because of number portability and VoIP, the area code tells you where the number was issued, not where the caller is right now.

NANPA lists 742 active NXX prefixes in 602, assigned to 32 carriers. 405 of those prefixes are pooled — shared between carriers in thousands-number blocks. The code spans one rate center.

Official projections put exhaust for the 480/602/623 complex at 4Q 2056.

The dialing plan is 10D for home-NPA local calls and 10D across codes.

Among Arizona codes, 602 stands out as the oldest area code in Arizona, in service since 1947.

If a 602 call asks for money or personal data, treat the displayed number as unverified: hang up and reach the organization through its published number. Numbering data locates numbers, not callers.

Later relief produced 520 (1995), 480 (1999), 623 (1999) from its territory.

Largest localities in 602

FAQ

Is 602 a toll-free number?

No. 602 is a geographic code; calls are billed like any other domestic call. Toll-free codes are 800, 833, 844, 855, 866, 877 and 888.

Why do 480 and 602 cover the same place?

They are overlays: when a code runs low on numbers, a new code is added over the same territory instead of splitting it. The 480/602/623 complex shares one service area, and local calls are dialed with 10 digits.

Will 602 run out of numbers?

NANPA's current forecast projects exhaust in 4Q 2056 — decades of capacity remain.

Why am I getting spam calls from 602 numbers?

Scammers spoof recognizable area codes so calls look local or familiar. A displayed 602 number does not prove the call originated there — see our guide to spotting spoofed calls.