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North American Area CodeMountain (MST) Time Zone

Area Code 520 Location & Details

State / Region: Arizona • Country: United States

Major Cities Covered: Tucson, Mesa, Gilbert, Chandler, Goodyear, Avondale, Queen Creek, Maricopa, Casa Grande, Marana

Standard Dial Format
+1 (520) XXX-XXXX
Country Code: +1 (NANP Format)
What State is Area Code 520?
ArizonaState Hub →
Country Territory
United States
520 Area Code Time Zone
Mountain (MST)
520 Overlay Codes
No Overlays

Area Code 520 Geographic Map

Interactive location bounds and coverage area for Arizona (Mountain (MST) Timezone)

Lat: 32.59° • Lng: -111.10°
📍 Geographic Center: ArizonaMap data © OpenStreetMap contributors

Where is Area Code 520 Located?

Telephone area code 520 is assigned to Arizona in United States. It serves cities and metropolitan communities including Tucson, Mesa, Gilbert, Chandler, Goodyear, Avondale, Queen Creek, Maricopa, Casa Grande, Marana.

Historical Context & Area Code Overlay Information:520 serves Arizona (United States).

For local and long-distance calls within area code 520, standard 10-digit dialing (520) XXX-XXXX applies.

Who Called Me from Area Code 520?

Received an unknown call, missed call, or text scam from area code 520? Here is how to trace who is calling from 520 area code and verify unknown numbers safely:

1.
Identify Missed Calls & Voicemails:

Legitimate contacts usually leave a detailed voicemail or caller ID record.

2.
Watch Out for Neighbor Spoofing:

Robocallers often fake incoming caller ID numbers using your local 520 prefix to boost pick-up rates.

3.
Reverse Phone Lookup Area Code 520:

Search public white-pages or use caller intelligence guides before returning unfamiliar calls.

Learn How Reverse Phone Lookups Work→

How to Call Area Code 520 & Dialing Format

When placing a phone call to a number in area code 520, follow the correct dialing format depending on your calling location:

  • Calling from inside the US / Canada (+1): Dial 1 + (520) + 7-digit number.
  • Calling from an international location outside +1: Dial your country's international exit code (e.g. 011 in US or + on mobile) + 1 + 520 + 7-digit number.
  • Do I need to dial area code 520 for local calls? Yes, 10-digit dialing (area code + line number) is mandatory across North American telephone networks.

Top Cities & Municipalities Served in Area Code 520

Urban centers, census places, and communities within the +1-520 calling area

32 Major Cities Listed
City NameCountyPopulation% of 520 Pop
TucsonSanta Cruz County548,37122.3%
MesaPinal County513,65620.9%
GilbertPinal County287,28511.7%
ChandlerPinal County278,74811.3%
GoodyearMaricopa County125,3595.1%
AvondaleMaricopa County100,9834.1%
Queen CreekPinal County89,7703.7%
MaricopaMaricopa County78,3623.2%
Casa GrandePinal County69,7532.8%
MaranaPinal County65,5232.7%
Oro ValleyPinal County48,0852.0%
Apache JunctionPinal County45,6721.9%
Sierra VistaSanta Cruz County44,9071.8%
SahuaritaSanta Cruz County37,6941.5%
FlorencePinal County25,2221.0%
CoolidgePinal County19,9590.8%
NogalesSanta Cruz County19,4950.8%
DouglasCochise County16,0380.7%
TollesonMaricopa County9,2240.4%
BensonCochise County5,5320.2%

Counties Covered by Area Code 520

Geographic county distribution and population coverage across Arizona

County NameTotal Population% of 520 Area% of County
Pinal County515,72659.0%100%
Santa Cruz County49,76526.7%100%
Maricopa County4,654,14713.0%7%
Cochise County125,1991.3%25%

☎️Area Code 520 Exchange Prefixes & Carriers

Showing 50 of 709 central office 3-digit prefixes and assigned telecom carriers

54% Landline36% Wireless10% VoIP
PrefixLine UsageRate CenterAssigned CarrierAssign Date
(520) 200-📞LandlineHAYDENELECTRIC LIGHTWAVE LLC DBA ALLSTREAM10/24/2002
(520) 201-📞LandlineSAN MANUELELECTRIC LIGHTWAVE LLC DBA ALLSTREAM10/24/2002
(520) 202-📞LandlineTUCSONLEVEL 3 TELECOM OF ARIZONA, LLC - AZN/A
(520) 203-📞LandlineTUCSONMCIMETRO ACCESS TRANSMISSION SERVICES LLC - AZ08/13/2003
(520) 204-📞LandlineTUCSONPAETEC ITEL, LLC12/04/2003
(520) 205-📞LandlineTUCSONQWEST CORPORATIONN/A
(520) 206-📞LandlineTUCSONQWEST CORPORATIONN/A
(520) 207-📞LandlineTUCSONCOMCAST IP PHONE, LLCN/A
(520) 208-📞LandlineCASAGRANDELEVEL 3 COMMUNICATIONS, LLC - AZ01/08/2001
(520) 209-📞LandlineTUCSONQWEST CORPORATIONN/A
(520) 210-💻VoIPTOMBSTONEONVOY, LLC - AZ08/20/2013
(520) 211-📞LandlineXXXXXXXXXXMULTIPLE OCN LISTINGN/A
(520) 212-📞LandlineCASCABELMIDVALE TELEPHONE EXCHANGE, INC.N/A
(520) 213-📱WirelessCASAGRANDET-MOBILE USA, INC.06/25/2013
(520) 214-💻VoIPTUCSONONVOY, LLC - AZ11/19/2015
(520) 215-📞LandlineBLACKWATERGILA RIVER TELECOMM, INC.N/A
(520) 216-📱WirelessNOGALESCELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZN/A
(520) 217-📞LandlineCASAGRANDEQWEST CORPORATION12/29/2015
(520) 218-📞LandlineTUCSONQWEST CORPORATIONN/A
(520) 219-📞LandlineTUCSONQWEST CORPORATIONN/A
(520) 220-📱WirelessSIERRAVISTT-MOBILE USA, INC.05/31/2002
(520) 221-📱WirelessBENSONCELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ04/08/2003
(520) 222-📞LandlineTUCSONQWEST CORPORATION10/06/2011
(520) 223-📞LandlineNOGALESLEVEL 3 COMMUNICATIONS, LLC - AZ04/09/2002
(520) 224-📞LandlineSIERRAVISTELECTRIC LIGHTWAVE LLC DBA ALLSTREAMN/A
(520) 225-📞LandlineTUCSONQWEST CORPORATIONN/A
(520) 226-📞LandlineSIERRAVISTLEVEL 3 COMMUNICATIONS, LLC - AZ04/09/2002
(520) 227-📱WirelessSIERRAVISTT-MOBILE USA, INC.05/16/2002
(520) 228-📞LandlineTUCSONQWEST CORPORATIONN/A
(520) 229-📞LandlineTUCSONQWEST CORPORATIONN/A
(520) 230-📱WirelessTUCSONCELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZN/A
(520) 231-💻VoIPWHITLOWBANDWIDTH.COM CLEC, LLC - AZN/A
(520) 232-📞LandlineTUCSONQWEST CORPORATIONN/A
(520) 233-💻VoIPCASAGRANDEONVOY, LLC - AZN/A
(520) 234-📱WirelessSIERRAVISTT-MOBILE USA, INC.11/06/2002
(520) 235-📱WirelessTUCSONCELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZN/A
(520) 236-📱WirelessSIERRAVISTMETROPCS, INC.09/17/2002
(520) 237-📱WirelessTUCSONCELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZN/A
(520) 238-📱WirelessYUMAT-MOBILE USA, INC.N/A
(520) 239-📞LandlineTUCSONTELEPORT COMMUNICATIONS AMERICA, LLC - AZN/A
(520) 240-📱WirelessTUCSONCELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZN/A
(520) 241-📱WirelessTUCSONNEW CINGULAR WIRELESS PCS, LLCN/A
(520) 242-📱WirelessWILLCOXCELLCO PARTNERSHIP DBA VERIZON WIRELESS - AZ10/28/2021
(520) 243-📞LandlineTUCSONQWEST CORPORATIONN/A
(520) 244-📱WirelessTUCSONT-MOBILE USA, INC.03/14/2016
(520) 245-📱WirelessTUCSONT-MOBILE USA, INC.N/A
(520) 246-📞LandlineTUCSONLEVEL 3 COMMUNICATIONS, LLC - AZ10/30/2020
(520) 247-📱WirelessTUCSONNEW CINGULAR WIRELESS PCS, LLC01/18/2001
(520) 248-📱WirelessTUCSONT-MOBILE USA, INC.N/A
(520) 249-📱WirelessSIERRAVISTT-MOBILE USA, INC.N/A

Frequently Asked Questions about Area Code 520

Where is area code 520 located?

Area code 520 is located in Arizona (United States), serving cities like Tucson, Mesa, Gilbert, Chandler, Goodyear, Avondale, Queen Creek, Maricopa, Casa Grande, Marana.

What timezone is area code 520?

Area code 520 operates in the Mountain (MST) timezone.

What state is area code 520?

Area code 520 is assigned to the state / telecom territory of Arizona.

Is area code 520 a scam or dangerous?

Area code 520 is an official geographic area code for Arizona. However, beware of robocaller spoofing.

Arizona State Area Codes

View complete directory of telephone area codes assigned to Arizona.

Explore Arizona Directory

Get a 520 Business Phone Number

How to acquire a virtual phone number or business line with area code 520 for local customer trust in Arizona.

Get 520 Business Number
🛡️ Scam & Safety Directory

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Overlay & Nearby Area Codes for Arizona

Explore neighboring telecom prefixes sharing geographical boundaries with area code 520.

480
Mountain (MST)
Area Code 480
Phoenix, Mesa, Gilbert, Chandler, Glendale, Scottsdale, Peoria, Tempe, Surprise, El Mirage
602
Mountain (MST)
Area Code 602
Phoenix, Glendale, Scottsdale, Peoria, Tempe, Surprise, El Mirage, Fountain Hills, Paradise Valley, Youngtown
623
Mountain (MST)
Area Code 623
Phoenix, Glendale, Scottsdale, Peoria, Tempe, Surprise, Avondale, El Mirage, Fountain Hills, Paradise Valley
928
Mountain (MST)
Area Code 928
Buckeye, Yuma, Flagstaff, Lake Havasu City, Prescott Valley, Prescott, Bullhead City, San Luis, Kingman, Eloy