Arizona area codes

Codes in service in Arizona

Arizona has 5 geographic area codes in service: 480, 520, 602, 623, 928. 602 is the oldest, dated 1947, and 928 the newest, dated 23 Jun 2001.1 All of Arizona's codes are on Mountain time.

Area code	NANPA location	NPA in-service date	In-service overlay peers	Time zone	Local calls within the code
480	AZ	1 Mar 1999	602, 623	Mountain	10 digits
520	AZ	19 Mar 1995	None listed	Mountain	10 digits
602	AZ	1947	480, 623	Mountain	10 digits
623	AZ	1 Mar 1999	480, 602	Mountain	10 digits
928	AZ	23 Jun 2001	None listed	Mountain	10 digits

Scroll the table sideways to see every column. Sources: NANPA (14 October 2026 file).

History and overlays in Arizona

Before 1960: 602 (1947)
1990s: 520 (19 Mar 1995), 480 (1 Mar 1999), 623 (1 Mar 1999)
2000s: 928 (23 Jun 2001)

Arizona's in-service overlay group is 480/602/623.1

480/602/623: 602 (1947) was joined by 480 on 1 Mar 1999 and 623 on 1 Mar 1999.

Dialing in Arizona

Local calls within a single area code in Arizona (480, 520, 602, 623, 928) are all recorded as 10 digits. From any of Arizona's codes, local calls to another area code are all recorded as 10 digits.1

Neighbours of Arizona

Regions that border Arizona:

California: 41 codes (209, 213, 279, 310, ...)
Nevada: 3 codes (702, 725, 775)
Utah: 3 codes (385, 435, 801)
New Mexico: 2 codes (505, 575)

Rules that apply to every region are on the area-code reference.

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Sources

Every regulatory and pricing claim on this page links to the primary source it came from. Figures were checked on the date shown at the top of the page; rules and prices change, so verify before relying on one.

NANPA, NPA Database CSV, file dated 14 October 2026; US geographic codes, location, dates, overlay complexes, dialing plan and time zone. Retrieved 14 Oct 2026
https://reports.nanpa.com/public/npa_report.csv