520 area code: location, time zone and numbers
In Tucson, Arizona, 520 is a US telephone area code that has been in service since 1995.
- Location
- Tucson, Arizona
- Operating since
- 1995
- Local time zone
- Mountain time
- Overlay
- None: it is the only code for its area
- Local calling
- Full 10-digit dialling
- Rate centre list
- 33
- Exhaust projection
- 2031
- Code for the country
- +1 (United States)
Source: NANPA public reports, the area code report and the rate-centre report, file dated 11/01/2026; the exhaust year comes from the NANPA projections 2026-1, published April 2026. We are not an official NANPA site.
Getting a 520 number
Two routes get you a 520 number. With its plan, a provider assigns a new number, chosen at sign-up from the pool of numbers it holds in that code. Numbers held by a seller, often with a pattern, are offered at a one-time price. You later transfer the number to a provider.
Providers ranked by first-year cost
| Provider | Cheapest plan | First year | Link |
|---|---|---|---|
 Free app | Basic (Just for me), free | $0 | Open Google Voice |
 Free app | Free plan, free | $0 | Open TextNow |
 Developer API | Pay-as-you-go local number, $1.15 a month | $13.80 | Open Twilio |
 Second-number app | Standard, $3.99 a month billed yearly | $47.99 | Open Burner |
 Toll-free specialist | Solo, $6.99 a month billed yearly | $84 | Open UniTel Voice |
 Second-number app | Deluxe (local number), $6.99 a month billed yearly | $102.88 | Open GoDaddy Conversations (formerly Smartline) |
Sellers that list local numbers
| Seller | What it sells | Listed price | Monthly fee | Link |
|---|---|---|---|---|
 Marketplace | Local numbers | From $9 one-time | None stated | Search at Exclusive Digits |
 Marketplace | Local and toll-free | From $9.95 one-time | $2.99 a month | Search at NumberBarn |
 Number broker | Local and toll-free | From $99 one-time | None stated | Search at RingBoost |
 Number broker | Local and toll-free | From $100 one-time | None stated | Search at PhoneNumberExpert |
| 212areacode.comNumber broker | Local numbers | From $150 one-time | None stated | Search at 212areacode.com |
Some sellers and providers may pay us a referral fee. That never changes the ranking, which stays by first-year cost. How we make money
Places in the 520 area code
For 520, NANPA lists 33 rate centres. Each one is a local calling area, and numbers get assigned to it:
Willcox, Whitlow, West San Simon, Tucson, Tombstone, Superior, Sunizona, Stotonic, Silver Bell, Sierra Vista, Sells, Sasabe, Santa Rosa, San Simon, San Manuel, Sacaton, Portal, Pearce, Nogales, Maricopa Village, Lone Butte, Komatke, Hayden, Elfrida, Douglas, Cascabel, Casa Grande, Casa Blanca, Bowie, Blackwater, Bisbee, Benson, Ajo.
Area codes related to this one
Other area codes in Arizona: 602, 480, 623 and 928.
City guides: area codes in Tucson.
520 area code questions
Which area does 520 serve?
Calls to 520 ring in Tucson, Arizona, and in the wider Tucson, AZ area.
Which country code applies to a 520 number?
+1. Because 520 sits in the North American Numbering Plan, calling from abroad means dialling +1 520 and the 7-digit number.
What time is it in the 520 area code?
Mountain time is the time zone for 520.
Who places calls from a 520 number?
This code covers homes, mobiles and local businesses, plus callers who fake a local number. What a 520 number shows on your screen is where it was assigned, not the identity of the caller.