Arizona area codes
The table below lists every active Arizona area code with its coverage, service date and prefix count. 3 of the 5 codes are overlays — added on top of existing territories as numbers ran short.
Geographically the map reads: 480 (Phoenix), 602 (Phoenix), 520 (Tucson), 928 (Yuma), 623 (Phoenix). Each code page lists its full coverage down to individual rate centers.
Overlay territory: 480/602/623 — same geography, several codes, ten-digit local dialing.
Time zone is uniform across the state's codes: Mountain.
480, in service since 1999, anchors Phoenix, carries 782 active prefixes across 1 rate centers, split among 34 carriers. 530 of its prefixes are pooled — shared between carriers in thousands-number blocks. NANPA projects its capacity to last until 4Q 2056 — no relief needed for decades. It was created from 602. Local dialing is ten digits.
520, in service since 1995, anchors Tucson, carries 692 active prefixes across 37 rate centers, split among 51 carriers. 485 of its prefixes are pooled — shared between carriers in thousands-number blocks. NANPA projects its capacity to last until 3Q 2031. It was created from 602. Local dialing is ten digits.
602, in service since 1947, anchors Phoenix, carries 742 active prefixes across 1 rate centers, split among 32 carriers. 405 of its prefixes are pooled — shared between carriers in thousands-number blocks. It is the oldest area code in Arizona, in service since 1947. NANPA projects its capacity to last until 4Q 2056 — no relief needed for decades. Local dialing is ten digits.
623 has served Phoenix since 1999, carries 310 active prefixes across 1 rate centers, split among 27 carriers. 222 of its prefixes are pooled — shared between carriers in thousands-number blocks. NANPA projects its capacity to last until 4Q 2056 — no relief needed for decades. It was created from 602. Local dialing is ten digits.
928, in service since 2001, anchors Yuma, carries 631 active prefixes across 94 rate centers, split among 51 carriers. 460 of its prefixes are pooled — shared between carriers in thousands-number blocks. It is covers more rate centers (94) than any other Arizona area code. NANPA projects its capacity to last until 3Q 2034. It was created from 520. Local dialing is ten digits.
Note that toll-free codes (800, 833, 844, 855, 866, 877, 888) sit outside this list — they have no geographic tie to Arizona or anywhere else, and are assigned individually from the national SMS/800 registry.
As everywhere in the NANP: these codes say where numbers were issued, not where callers are. Per-code pages break coverage down to rate centers and prefixes.
| Code | Major area | In service | Overlay complex | Prefixes |
|---|---|---|---|---|
| 480 | Phoenix | 1999 | 480/602/623 | 782 |
| 520 | Tucson | 1995 | — | 692 |
| 602 | Phoenix | 1947 | 480/602/623 | 742 |
| 623 | Phoenix | 1999 | 480/602/623 | 310 |
| 928 | Yuma | 2001 | — | 631 |
FAQ
How many area codes does Arizona have?
5 geographic area codes are currently in service: 480, 520, 602, 623, 928.
What was Arizona's first area code?
602, in service since 1947.
Will Arizona get a new area code soon?
Likely: NANPA projects 520 to exhaust its capacity in 3Q 2031, and relief overlays are planned years in advance.
Which time zone are Arizona numbers in?
All Arizona area codes are in the Mountain time zone.