Area Code 520 — Arizona

Active General Purpose Code United States

Area code 520 is located in Arizona and operates on Mountain Time . The largest city served is Tucson .

Coverage Area

Area code 520 — Arizona

Area Code Details

Area Code: 520
State / Province: Arizona (AZ)
Country: United States
Time Zone: Mountain Time Mountain Time
Local Time Now: —
Status: Active
Code Type: General Purpose Code
In Service Since: March 19, 1995
Assigned: January 21, 1994
Population Served: ~670,735 est.

Cities Served

Largest City Tucson

Tucson Casa Grande Sierra Vista Nogales Bisbee Benson Superior Hayden

History & Relationships

Split from

New codes split from 520

Rate Centers & Exchanges

8 rate centers identified within area code 520

View exchanges →

Other Area Codes in Arizona

Nearby Area Codes

Frequently Asked Questions About Area Code 520

What state is area code 520?

Area code 520 is located in Arizona, United States.

Where is area code 520 from?

Area code 520 originates from Arizona. It operates in the Mountain Time zone.

What time zone is area code 520?

Area code 520 falls within the Mountain Time zone (Mountain Time).

What cities are in area code 520?

Area code 520 serves cities including Tucson, Casa Grande, Sierra Vista, Nogales, Bisbee, Benson, Superior, Hayden.

Is a call from area code 520 a scam?

Area code 520 is a legitimate general purpose code area code serving Arizona. Like any area code, individual numbers using 520 can be used for scam calls — always verify the specific number if you receive an unexpected or suspicious call.