Zip Area Code

Area code 623

Area code 623 is an Arizona area code, in service since March 1, 1999.

It was added as an overlay on 602: both codes serve the same area, so neighbors can have numbers in either one.

480 serves the same area too.

Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

It is in the Mountain Time zone, and NANPA lists it as not observing daylight saving time.

State
Arizona
In service since
March 1, 1999
Overlays
480, 602
Local dialing
ten digits; dialing 1 plus ten digits also works
Time zone
Mountain Time
ZIP codes
135

Map

Map of the 623 area codeThe shaded area shows where 623 numbers are rated, with the neighboring area codes outlined around it.928520Phoenix
Approximate 623 coverage, drawn from U.S. Census ZIP code areas and NANPA rate centers. Dashed lines are state borders.

Main cities in area code 623

Overlays and neighboring area codes

Overlays, serving the same area: 480, 602.

Neighboring area codes: 928, 520.

Counties in area code 623

Towns in area code 623