Where is the 623 area code?

Area code 623 covers Chandler, Mesa and Phoenix in Arizona, on Mountain Standard Time (no daylight saving).

What time zone is area code 623 in?

Numbers in the 623 area code sit in Mountain Standard Time (no daylight saving).

Is 623 a toll-free or scam area code?

No. 623 is a geographic North American Numbering Plan area code assigned to Arizona. Toll-free numbers use 800, 833, 844, 855, 866, 877 and 888. A call from 623 can still be spoofed, so treat unexpected calls with the usual caution.

Area code lookup

623 area code

Where the 623 area code is, which cities and counties it serves, the local time zone and the overlay codes dialled alongside it.

State: AZ
Cities covered: 3
Counties: 1
Time zone: Mountain Standard Time

Quick answer

Area code 623 serves Chandler, Mesa and Phoenix in Arizona. It sits in Mountain Standard Time (no daylight saving) and covers 1 county and about 28 ZIP codes across the metros we track. Numbers there are also dialled as 480, 602.

Cities in the 623 area code

Each city links to its full local profile: sales tax, housing, income and ZIP codes.

City	County	Time zone	ZIP codes
Chandler, AZ	Maricopa County	MST/MST	6
Mesa, AZ	Maricopa County	MST/MST	10
Phoenix, AZ	Maricopa County	MST/MST	12

Related area codes

Codes that share or border the same calling area.

623 area code FAQ

The questions people ask about this code.

Where is area code 623?

623 is a geographic area code in Arizona, covering Chandler, Mesa and Phoenix.

What time is it in the 623 area code?

623 observes Mountain Standard Time (no daylight saving) (MST/MST).

Is 623 a scam area code?

No — it is a normal geographic code, not a toll-free or premium-rate prefix. Caller ID can be spoofed on any code, so verify unexpected callers before sharing information.

Sources & transparency

North American Numbering Plan Administrator (NANPA) area code assignments — area code to geography mapping and overlay relationships
US Census Bureau, American Community Survey 2019-2023 5-year estimates — city, county and ZIP code geography

Last reviewed August 2026. Figures are published for reference and can change; verify with the source agency before filing or contracting. How we build and check this data.