Area code 520 covers Tucson and surrounding areas in Arizona. It was activated in 1995 as an overlay of area code 602. For the full picture, see all Arizona area codes.
| State | Arizona |
|---|---|
| Primary city | Tucson |
| Cities also served | Tucson, Sierra Vista, Casa Grande, Nogales, Marana, Oro Valley, Douglas, Green Valley |
| Time zone | Mountain (UTC-7 (no DST observed)) |
| Year established | March 19, 1995 |
| Original 1947 NPA? | No |
| Parent code | 602 |
| Overlay codes | None |
| Currently in use? | Yes, actively assigned |
| Ten-digit dialing required? | Yes |
Cities Served by Area Code 520
Area code 520 serves Southern Arizona — Pima, Cochise, Santa Cruz, and portions of Pinal County, including the following cities and communities:
- Tucson
- Sierra Vista
- Casa Grande
- Nogales
- Marana
- Oro Valley
- Douglas
- Green Valley
Nearby area codes covering the same broader region include: 602, 480, 623, 928.
How to Get a 520 Phone Number
There are three ways to get a phone number with the 520 area code, each suited to a different need:
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Browse 520 Numbers →- Buy from a premium-number specialist. Companies that hold curated inventories of specific area codes can sell you a 520 number directly, often with a one-time fee and ownership transferred to you (no recurring carrier fees). This is the option for picking a specific memorable number, or for getting an area code that most carriers won’t let you request. Browse our 520 inventory.
- Sign up with a VoIP carrier. Voice-over-IP services (such as Google Voice, OpenPhone, Grasshopper, and many others) can typically provision a 520 number on request, especially for active overlay codes. You won’t usually get to pick the specific number, but you’ll get a working line in the area code. This is the cheapest option for anyone who doesn’t need a particular number.
- Port an existing 520 number. If you already have a 520 phone number with another carrier, you can transfer it (port it) to a new service provider while keeping the number. This works for landlines, cell phones, and VoIP services, though landlines outside of Arizona sometimes can’t accept inbound ports of 520 numbers due to 911 routing rules.
Looking for a 520 number? 212areacode.com offers premium 520 numbers for Tucson, Arizona — choose your number, port it to any carrier in 3–5 business days, and pay a one-time fee with no monthly charges. Browse available 520 numbers →
Frequently Asked Questions
Is the 520 area code still in use?
Yes. 520 is actively assigned to new phone lines in Southern Arizona — Pima, Cochise, Santa Cruz, and portions of Pinal County.
What is the parent area code of 520?
Area code 520 is an overlay of 602. Both codes serve the same region of Arizona.
Can I get a 520 number if I don't live in Arizona?
Yes. Phone numbers are no longer tied to a physical address. With VoIP service or a number broker, you can hold a 520 number from anywhere in the world. The number routes to whatever device or carrier you specify.
Is 520 a scam area code?
No. 520 is a legitimate, active area code for Southern Arizona — Pima, Cochise, Santa Cruz, and portions of Pinal County. Like any area code, scammers occasionally spoof 520 caller IDs, but the code itself is heavily used by real Arizona businesses, government offices, and residents.
What cities are in the 520 area code?
The 520 area code covers southern Arizona, including Tucson, Sierra Vista, Nogales, Casa Grande, Marana, Oro Valley, Douglas, and Green Valley, across Pima, Cochise, Santa Cruz, and portions of Pinal County.
Does the 520 area code observe Daylight Saving Time?
No. Arizona (with the exception of the Navajo Nation) does not observe Daylight Saving Time. The 520 area code runs on Mountain Standard Time (UTC-7) year-round.
Is 10-digit dialing required for 520?
Yes. Mandatory ten-digit dialing took effect on October 24, 2021, when 988 was designated as the national Suicide and Crisis Lifeline and seven-digit dialing was discontinued in the 520 area.
What area code did 520 split from?
Area code 520 was created on March 19, 1995, in a split from area code 602, which had been Arizona’s only area code since 1947. In 2001, 520 was itself split to create area code 928 for northern and western Arizona.
