Arizona · Mountain Time
602 Area Code
Area code 602 is in Arizona, serving Phoenix and the greater Phoenix metro area (Valley of the Sun) in central Arizona. It is in the Mountain Time zone. It shares its territory with overlay codes 480 and 623, so 10-digit dialing is required.
Last updated October 1, 2026 · Source: NANPA
Where is the 602 area code?
602 is a Arizona area code covering Phoenix and the greater Phoenix metro area (Valley of the Sun) in central Arizona. In the wider directory it sits in the West region.
Cities in the 602 area code
- Phoenix
- Mesa
- Chandler
- Glendale
- Scottsdale
- Gilbert
- Tempe
- Peoria
- Surprise
- Avondale
- Goodyear
- Buckeye
- Queen Creek
- Apache Junction
Counties served by 602
Maricopa County and Pinal County.
Time zone note: Arizona does not observe daylight saving time (except the Navajo Nation).
602 overlay codes and dialing
The 602 territory is covered by an overlay of 3 area codes: 480, 602, 623. All of them serve the same geographic area, and the original code is 602. Because more than one code covers the same ground, 10-digit dialing is mandatory — you must dial the area code for every local call. New phone lines may be assigned any of these codes.
History of the 602 area code
602 is one of the original area codes assigned in 1947, when AT&T and Bell Laboratories created the North American Numbering Plan and divided the country into the first 86 numbering plan areas. It has served the Phoenix area ever since, with 480 and 623 later added as overlays to supply more numbers.
Is 602 a scam or spam risk?
602 is a legitimate geographic area code, not a premium or toll line, so a call from it costs you nothing extra. That said, scammers frequently spoof real local area codes to look familiar on caller ID. A genuine 602 number on your screen is no guarantee the caller is in Phoenix, AZ or trustworthy. See spam & scam-risk area codes for how spoofing works and how to respond.
Explore more
See every code in Arizona, compare codes across the West region, or view all Mountain Time codes. You can also browse the 6XX block or the complete numeric list of US area codes.
New to how this all works? Start with how area codes work, then read up on overlays, 10-digit dialing, and spam & scam-risk codes. To check another number, use the area code lookup tool.
Quick answers
602 area code FAQ
Where is the 602 area code?
The 602 area code is in Arizona, covering Phoenix and the greater Phoenix metro area (Valley of the Sun) in central Arizona, in the West region.
What cities are in the 602 area code?
Cities in the 602 area code include Phoenix, Mesa, Chandler, Glendale, Scottsdale, Gilbert, Tempe, Peoria, Surprise and Avondale.
What time zone is 602 in?
602 is in the Mountain Time zone. Arizona does not observe daylight saving time (except the Navajo Nation).
What is the overlay for the 602 area code?
602 shares its territory with 480 and 623. All 3 codes (480, 602, 623) serve the same area, so 10-digit dialing is required for every call.
When did the 602 area code start?
602 went into service on January 1, 1947 as one of the original 1947 North American area codes.
Do I have to dial 10 digits for 602?
Yes. Because 602 is an overlay area, you must dial the full 10-digit number (area code + 7 digits) for every call.
Is 602 a toll-free or premium code?
No. 602 is a standard geographic area code, so calling it costs the same as any local or long-distance call on your plan. Toll-free calls use 800, 888, 877, 866, 855, 844 or 833.