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AREA CODE · ARIZONA

Area code 520

Area code 520 covers Tucson, Arizona. Map, time zone, overlays, carriers, the full list of prefixes and how to dial it.

State: Arizona Major City: Tucson Mountain Time, no DST (MST) Overlay: None
01 / WHERE IT IS

Where is area code 520?

Area code 520 is assigned to Tucson and the surrounding region in Arizona. Calls to numbers that start with 520 are routed to this area.

Area code 520 is not currently part of an overlay: it serves its territory on its own.

Counties covered

Pima CountyCochise CountyPinal CountySanta Cruz County

Line types

  • Mobile 35.79%
  • Landline 64.21%
02 / MAP

Area code 520 on the map

The shaded area joins the code’s numbering centers; the marker shows its main city.

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© OpenStreetMap contributors

03 / LOCAL TIME

Current time in Tucson

This area code is in the Mountain Time, no DST (MST) time zone.

Local timeTucson, AZ--:--:--

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America/PhoenixLive
04 / HOW TO DIAL

How to call Tucson

WITHIN THE US520 XXX XXXX

Always 10 digits — landline, mobile or VoIP. Local, long distance or a different state: the format is always the same. You do not need to dial the 1 first.

FROM ABROAD+1 520 XXX XXXX

Exit codes: 00 Europe/Mexico · 011 Canada · 010 Japan · + universal

WHATSAPP / IMESSAGE+1 520 XXX XXXX

Always save the number in international format so messaging apps recognize it correctly:

Call typeTraditional landlineMobile / VoIP
Local (same area code)10 digits10 digits
US long distance1 + 10 digits10 digits
Emergency911911
🌐Universal+1 520 555 0123
🇪🇸🇲🇽Spain / Mexico00 1 520 555 0123
🇦🇺Australia0011 1 520 555 0123
🇯🇵Japan010 1 520 555 0123
HAVE THE FULL NUMBER?

Learn more about that number.

Check the line type and the carrier the number block was originally assigned to.

10 digits to see the carrier and line type of the number

05 / CARRIERS

Carriers in area code 520

Share of the number blocks by carrier and line type.

Landline

Lumen Technologies
52%
Sinch
11%
Verizon Business
6%
Bandwidth
4%
AT&T
4%
Others
24%

Mobile

Verizon Wireless
42%
T-MOBILE USA
33%
AT&T Mobility
21%
Sinch
2%
Boost Mobile
1%
Others
1%

Carrier shown is the original assignment of each number block and may differ today because of number portability.

06 / PREFIXES

Complete list of prefixes for area code 520

693 number blocks (NXX) assigned in this area code.

PrefixTypeCityCarrier
(520) 200 Landline Hayden Ziply FiberELECTRIC LIGHTWAVE LLC DBA ALLSTREAM
(520) 201 Landline San Manuel Ziply FiberELECTRIC LIGHTWAVE LLC DBA ALLSTREAM
(520) 202 Landline Tucson Lumen TechnologiesLEVEL 3 TELECOM OF ARIZONA, LLC - AZ
(520) 203 Landline Tucson Verizon BusinessMCIMETRO ACCESS TRANSMISSION SERVICES LLC - AZ
(520) 204 Landline Tucson Windstream CommunicationsPAETEC ITEL, LLC
(520) 205 Landline Tucson Lumen TechnologiesQWEST CORPORATION
(520) 206 Landline Tucson Lumen TechnologiesQWEST CORPORATION
(520) 207 Landline Tucson ComcastCOMCAST IP PHONE, LLC
(520) 208 Landline Casa Grande Lumen TechnologiesLEVEL 3 COMMUNICATIONS, LLC - AZ
(520) 209 Landline Tucson Lumen TechnologiesQWEST CORPORATION

Showing 10 of 693 prefixes

07 / FAQ

Frequently asked questions about area code 520

Where is area code 520 used?
Area code 520 serves Tucson and the surrounding area in Arizona, including Pima County, Cochise County, Pinal County, Santa Cruz County.
What city is area code 520 from?
The main city of area code 520 is Tucson, AZ.
What time zone is area code 520 in?
Area code 520 is in the Mountain Time, no DST (MST) time zone (America/Phoenix).
Is 520 an overlay area code?
No. Area code 520 is not currently part of an overlay.
How do I call a number with area code 520 from the United States?
Dial the 10 digits: 520 + 7-digit number. For some long-distance calls from a landline you may need to add a 1 first.
How do I call a 520 number from another country?
Dial your country's exit code (or +), then 1, then 520 and the seven-digit number. From a mobile you can use +1 520 XXX XXXX.
Which carriers use area code 520?
Most landline blocks belong to Lumen Technologies and most mobile blocks to Verizon Wireless. The carrier shown is the original assignment and may differ today because of number portability.
Is area code 520 for landlines, mobiles or both?
Both. About 64.21% of the number blocks are landline, 35.79% mobile.
How do I save a 520 number in WhatsApp or my phone?
Save it in international format: +1 520 XXX XXXX. That way WhatsApp, iMessage and Telegram recognize it from any country.
Is it safe to answer calls from area code 520?
The area code only shows the region a number was assigned to; it does not tell you who is calling. Scammers can fake any area code, so do not share personal or banking information with unknown callers, and let unknown numbers go to voicemail.
KEEP EXPLORING

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