West region · Mountain Time
Arizona Area Codes
All 5 area codes serving Arizona, the cities each one covers, and which are overlays. Arizona is served by 5 area codes in the Mountain Time zone.
Last updated October 3, 2026
Full list
Every Arizona area code
Arizona is served by 5 area codes in the Mountain Time zone. 2 of these are overlay codes layered over busy metros; the rest are geographic codes. Arizona does not observe daylight saving time (except the Navajo Nation).
| Code | Area served | Type | In service |
|---|---|---|---|
| 480 | Phoenix and the greater Phoenix metro area (Valley of the Sun) in central Arizona | Overlay | Since 1999 |
| 520 | Southern Arizona including Tucson, Casa Grande, Sierra Vista and Nogales | Geographic | Since 1995 |
| 602 | Phoenix and the greater Phoenix metro area (Valley of the Sun) in central Arizona | Geographic | Since 1947 |
| 623 | Phoenix and the greater Phoenix metro area (Valley of the Sun) in central Arizona | Overlay | Since 1999 |
| 928 | All of Arizona outside the Phoenix and Tucson areas, including Flagstaff, Yuma and Prescott | Geographic | Since 2001 |
Area codes and dialing in Arizona
Arizona's 5 area codes mix older geographic codes with newer overlays. The busiest metros — around Phoenix, Tucson, Flagstaff — carry the most numbers and rely on overlays, which is why 10-digit dialing is required there. Quieter parts of the state may still use a single code. The oldest code in Arizona is 602 (Phoenix), one of the original 1947 area codes.
Whenever a Arizona region runs low on numbers, a new overlay is added on top rather than splitting the map, so existing customers keep their numbers. See 10-digit dialing for what that means in practice, or the newest area codes for upcoming changes.
Arizona city area code pages
Look up the area codes for a specific Arizona city: Phoenix · Tucson · Mesa · Scottsdale.
Browse Arizona another way
Explore by West region, by time zone, or jump to the city index. You can also see the complete numeric list of every US area code.
Quick answers
Arizona area code FAQ
How many area codes does Arizona have?
Arizona currently has 5 area codes: 480, 520, 602, 623, 928.
What is the main area code for Arizona?
Arizona has no single main code. Its original 1947 area code was 602; today the main cities are served by 602 (Phoenix), 520 (Tucson), 480 (Phoenix), 623 (Phoenix), 928 (Flagstaff).
Does Arizona require 10-digit dialing?
Yes, in its overlay areas you must dial all 10 digits, even for local calls. Dialing all 10 digits always works, so it is the safe habit.