🇺🇸 623 area code
Area code 623 covers Phoenix, Glendale, Buckeye and Peoria and the surrounding area in Arizona. It shares that territory with 480 and 602, so the same neighbourhood can have numbers in any of them. Enter a 623 number below for a free check before you call back.
- Location: Phoenix, Arizona
- Time zone: Mountain (UTC−7)
- In service since March 1, 1999
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Validez, operador, tipo de línea y región en la primera pasada.
Area code 623 at a glance
Cities in area code 623
- Phoenix
- Glendale
- Buckeye
- Peoria
- Sun City
Is a 623 call a scam?
An area code tells you where a number was first assigned, not where the caller is. Mobile numbers keep their area code when people move, and internet (VoIP) numbers can be picked in any area code — so a 623 number can be calling from anywhere.
Robocallers exploit that with "neighbor spoofing": showing a 623 number to people in Arizona because a local-looking call is more likely to be answered. If a 623 call claims to be your bank, the IRS or a delivery company, hang up and call the official number yourself.
About area code 623
623 entered service on March 1, 1999, as an overlay on 602, which had run short of numbers.
It is part of the 480/602/623 overlay: the codes cover the same area, and a new line there can be given a number in any of them. Two neighbours — or two phones in one household — can have different area codes. That is also why local calls need the full ten digits.
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Area code 623 questions
Sources: NANPA NPA database (11/04/2026) and Google libphonenumber. Area codes show where a number was assigned, not where its owner is today.
Where is area code 623?
Area code 623 is in Arizona, United States. It covers Phoenix, Glendale, Buckeye, Peoria and Sun City.
What time zone is area code 623?
623 is in the Mountain (UTC−7) time zone, and does not observe daylight saving time.
What area codes overlay 623?
480 and 602 serve the same area as 623. Numbers in all of them are local to one another.
When did area code 623 start?
623 entered service on March 1, 1999, created from 602.
How do I find out who called me from 623?
Enter the full number in the lookup at the top of this page. The free check confirms whether the number is valid and shows its carrier, line type and region; a full report adds owner and public-web records where they are available.
Why am I getting calls from area code 623?
If you live in or near Arizona, they may be genuinely local — or robocalls spoofing a local-looking number. Unknown 623 callers who will not leave a message are best looked up before you call back.
Got a call from 623?
Run the free check first — validity, carrier, line type and region — and unlock the full report only if you need it.