What time zone is area code 623 in?

Area code 623 uses Mountain Standard Time.

What area codes overlay 623?

480 and 602 serve the same area as 623. New numbers in the area can get any of these codes, which is why local calls need all 10 digits.

Is a call from area code 623 a scam?

The area code alone doesn’t tell you. Most calls from 623 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 623 number, let it go to voicemail.

When did area code 623 start?

623 went into service in 1999. It was created from area code 602.

Can a 623 number be outside Arizona?

Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 623 caller can be anywhere.

Area code 623

Where is area code 623?

Phoenix, Glendale and Buckeye, Arizona

Local time: … (Mountain Standard Time)

State	Arizona
Country	United States
Main cities	Phoenix, Glendale and Buckeye
Time zone	Mountain Standard Time
Overlay area codes	480 and 602
In service since	1999 (created from 602)
Assigned prefixes	314
Dialing format	(623) XXX-XXXX · +1 623 XXX XXXX from abroad

Look up a 623 number

Cities and towns in area code 623

Listed by how many phone prefixes (the 3 digits after the area code) are assigned to each place in 623.

Phoenix, AZ (300)
Glendale, AZ (11)
Buckeye, AZ (1)
Peoria, AZ (1)
Sun City, AZ (1)

Phone companies in area code 623

The carriers that hold the most 623 prefixes. People can move their number to another carrier, so this shows who first issued a number, not who serves it today.

Prefixes	Carrier
97	Qwest (Lumen)
39	T-Mobile USA
31	Verizon Wireless
29	Onvoy
22	New Cingular Wireless PCS (AT&T)
13	Mcimetro Access Transmission Services
11	Comcast IP Phone
10	Level 3 Communications

All 314 prefixes in area code 623

Pick the 3 digits after the area code to see that prefix’s city and carrier.

Area codes that overlay 623

Questions

Where is area code 623?: Area code 623 is in Arizona. It serves Phoenix, Glendale, Buckeye, Peoria and Sun City.
What time zone is area code 623 in?: Area code 623 uses Mountain Standard Time.
What area codes overlay 623?: 480 and 602 serve the same area as 623. New numbers in the area can get any of these codes, which is why local calls need all 10 digits.
Is a call from area code 623 a scam?: The area code alone doesn’t tell you. Most calls from 623 are ordinary local calls, but scammers can fake (“spoof”) any number. If you don’t recognize a 623 number, let it go to voicemail.
When did area code 623 start?: 623 went into service in 1999. It was created from area code 602.
Can a 623 number be outside Arizona?: Yes. People keep their numbers when they move and when they switch to mobile or internet phone services, so a 623 caller can be anywhere.

Other area codes in Arizona

Area code	Main cities
520	Tucson, Sierra Vista and Casa Grande
928	Yuma, Flagstaff and Prescott