520 Area Code

The 520 area code is part of the North American Numbering Plan (NANP) and serves southern Arizona, USA. Established in 1995 as a split from the 602 area code, 520 covers major cities, towns, and surrounding communities in southern Arizona. It is essential for residential, business, and governmental communications throughout the region.

Understanding the 520 Area Code

The 520 area code serves cities and communities including Tucson, Sierra Vista, Nogales, and Casa Grande. It supports landline phones, mobile phones, VoIP, and business telecommunications. Local calls require 10-digit dialing due to numbering plan requirements.

520 Area Code Map and Geographic Location

The 520 area code map covers southern Arizona, including Tucson, Sierra Vista, Nogales, and surrounding areas. The region includes commercial centers, residential neighborhoods, government offices, military installations, and cultural landmarks.

All Major Cities and Regions in the 520 Area Code

Tucson
Sierra Vista
Nogales
Casa Grande
Marana
Green Valley
Vail
Douglas
Bisbee

Counties Covered by the 520 Area Code

Pima County
Cochise County
Santa Cruz County
Greenlee County
Pinal County (partial)

ZIP Codes within the 520 Telephone Zone (Examples)

85701 - Tucson
85635 - Sierra Vista
85621 - Nogales
85122 - Casa Grande
85742 - Marana
85614 - Green Valley
85641 - Vail
85607 - Douglas
85603 - Bisbee

Time Zone

The 520 area code is located in the Mountain Standard Time Zone (MST), as Arizona does not observe daylight saving time.

Dialing, Phone & Service Details

Overlay: No overlay; 520 primarily serves southern Arizona
Local dialing: 10-digit dialing is required
Long-distance calls within the USA: Dial 1 + 520 + 7-digit number
International calls: Dial your country�s exit code + 1 + 520 + 7-digit number
Services: Landline, mobile, VoIP, and business communications

What area code is 520? / Where's area code 520?

What area code is 520? � 520 is an Arizona telephone code serving Tucson, Sierra Vista, Nogales, Casa Grande, and surrounding areas.

Where's area code 520? � It is located in southern Arizona, USA, covering major cities, towns, and rural communities.

Frequently Asked Questions (FAQ) about 520 Area Code

What is the 520 area code?

520 serves southern Arizona, including Tucson, Sierra Vista, Nogales, Casa Grande, and surrounding areas.

When was the 520 area code created?

It was established in 1995 as a split from the 602 area code.

Where is area code 520 located?

It is located in southern Arizona, including major cities and surrounding communities.

What time zone is 520 in?

The 520 area code follows Mountain Standard Time (MST), without daylight saving time.

Does 520 have an overlay?

No, the 520 area code does not currently have an overlay.

What services does 520 support?

520 supports landline, mobile, VoIP, and business communications.

Feature	Details
Area Code	520
Region Covered	Southern Arizona, including Tucson, USA
Established	1995
Time Zone	Mountain Standard Time (MST)
Major Cities	Tucson, Sierra Vista, Nogales, Casa Grande, Marana
ZIP Range	85122-85742 (examples above)
Services	Landline, mobile, VoIP, business
Dialing	+1 520 NXX XXXX
Country	United States of America

Ares Code	Office / Place	Address
520 Area Code	University of Arizona	1401 E University Blvd, Tucson, AZ 85721
520 Area Code	Pima Community College	4905E. Broadway Blvd, Tucson, AZ 85709
520 Area Code	University of Arizona - Sierra Vista Campus	1140 N Colombo Ave, Sierra Vista, AZ 85635
520 Area Code	Arizona School of Acupuncture & Oriental Medicine	222 E Elm St, Tucson, AZ 85705
520 Area Code	Ottawa University Tucson	1020 E 18th St, Tucson, AZ 85719
520 Area Code	Banner � University Medical Center Tucson	1501 N Campbell Ave, Tucson, AZ 85724
520 Area Code	Tucson Medical Center	5301 E Grant Rd, Tucson, AZ 85712
520 Area Code	Canyon Vista Medical Center	3900 S Hwy 92, Sierra Vista, AZ 85635
520 Area Code	St. Joseph�s Hospital	350 N Wilmot Rd, Tucson, AZ 85711
520 Area Code	Green Valley Hospital	4455 W Esperanza Blvd, Green Valley, AZ 85622
520 Area Code	Bank of America	33 N Stone Ave, Tucson, AZ 85701
520 Area Code	Chase Bank	100 E Congress St, Tucson, AZ 85701
520 Area Code	Wells Fargo	200 N Stone Ave, Tucson, AZ 85701
520 Area Code	Western Alliance Bank	1200 E Fry Blvd, Sierra Vista, AZ 85635
520 Area Code	U.S. Bank	100 S Tucson Blvd, Tucson, AZ 85701
520 Area Code	Pima County Courthouse	110 W Congress St, Tucson, AZ 85701
520 Area Code	City of Tucson City Hall	255 W Alameda St, Tucson, AZ 85701
520 Area Code	Cochise County Courthouse	100 Quality Hill, Bisbee, AZ 85603
520 Area Code	Pima County Administration	130 W Congress St, Tucson, AZ 85701
520 Area Code	Tucson Police Department	270 S Stone Ave, Tucson, AZ 85701
520 Area Code	Reid Park Zoo	3400 E Zoo Ct, Tucson, AZ 85716
520 Area Code	Sabino Canyon	5700 N Sabino Canyon Rd, Tucson, AZ 85750
520 Area Code	Saguaro National Park	2700 N Sabino Canyon Rd, Tucson, AZ 85750
520 Area Code	San Pedro Riparian National Conservation Area	San Pedro, AZ 85635
520 Area Code	Tucson Mountain Park	8451 W McCain Loop, Tucson, AZ 85743
520 Area Code	Arizona-Sonora Desert Museum	2021 N Kinney Rd, Tucson, AZ 85743
520 Area Code	Pima Air & Space Museum	6000 E Valencia Rd, Tucson, AZ 85756
520 Area Code	Tucson Museum of Art	140 N Main Ave, Tucson, AZ 85701
520 Area Code	DeGrazia Gallery in the Sun	6300 N Desert View Ave, Tucson, AZ 85750
520 Area Code	Cochise College Museum	901 N Columbo Ave, Sierra Vista, AZ 85635
520 Area Code	Tucson Mall	4500 N Oracle Rd, Tucson, AZ 85705
520 Area Code	Park Place Mall	5870 E Broadway Blvd, Tucson, AZ 85711
520 Area Code	Foothills Mall	7401 N La Cholla Blvd, Tucson, AZ 85741
520 Area Code	Village Mall	1240 E Fry Blvd, Sierra Vista, AZ 85635
520 Area Code	2nd Street Market	233 E 2nd St, Tucson, AZ 85705
520 Area Code	Westin La Paloma Resort	3800 E Sunrise Dr, Tucson, AZ 85718
520 Area Code	JW Marriott Tucson Starr Pass Resort	3800 W Starr Pass Blvd, Tucson, AZ 85745
520 Area Code	Holiday Inn Express Sierra Vista	100 Fry Blvd, Sierra Vista, AZ 85635
520 Area Code	Hilton Tucson East	7600 E Broadway Blvd, Tucson, AZ 85710
520 Area Code	Arizona Inn	2200 E Elm St, Tucson, AZ 85719
520 Area Code	Tucson International Airport	7250 S Tucson Blvd, Tucson, AZ 85756
520 Area Code	Sun Tran Bus Terminal	320 N Main Ave, Tucson, AZ 85701
520 Area Code	Sierra Vista Transit Center	1101 N Coronado Dr, Sierra Vista, AZ 85635
520 Area Code	Amtrak Station Tucson	400 N Toole Ave, Tucson, AZ 85701
520 Area Code	Greyhound Bus Station Tucson	10 W 22nd St, Tucson, AZ 85713

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