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Arizona · Mountain Time (no DST)

520 Area Code: Tucson, AZ

The 520 area code covers Tucson, Sierra Vista, Casa Grande and Oro Valley in Arizona, on Mountain Time (no DST). Here is the current local time there, and whether you can legally place a solicitation call to a 520 number right now.

Current local time in the 520 area code

Current local time in the 520 area code

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Can you legally call a 520 number right now?

Checking…

DayLegal calling window in Arizona
Sunday8:00 AM-9:00 PM
Monday8:00 AM-9:00 PM
Tuesday8:00 AM-9:00 PM
Wednesday8:00 AM-9:00 PM
Thursday8:00 AM-9:00 PM
Friday8:00 AM-9:00 PM
Saturday8:00 AM-9:00 PM

Windows shown are the stricter of the federal TCPA/TSR rule (8 a.m.-9 p.m. local) and Arizona's own statute, in the called party's local time. Informational only, not legal advice. Check any number against the full TCPA calling hours calculator.

Area code 520 at a glance

StateArizona
Principal cityTucson
Time zoneMountain Time (no DST)
Overlay codesNone
Weekday calling window8:00 AM-9:00 PM local
CountryUnited States

Cities in the 520 area code

These are the main population centers 520 serves. Smaller towns across the same Arizona region share the code.

  • Tucson
  • Sierra Vista
  • Casa Grande
  • Oro Valley
  • Nogales

Calling 520 numbers legally

Arizona has no calling-hour statute stricter than federal law, so the TCPA and the FTC's Telemarketing Sales Rule set the window: solicitation calls only between 8 a.m. and 9 p.m. in the called party's local time. Because the rule follows the called party, a 520 number is on Mountain Time (no DST) regardless of where you dial from.

Ringless voicemail sits under the same rules as a live call, which is why TCPA compliance matters before you drop to a list. To check a whole list rather than one code, the phone number formatter tags every number with its state so you can segment sends by time zone.

Other Arizona area codes

480Mesa602Phoenix623Glendale928Yuma

Or browse every US area code.

FAQ

520 area code questions

520 is a US telephone area code serving Arizona, on Mountain Time (no DST). Its principal city is Tucson, and it also covers Sierra Vista, Casa Grande and Oro Valley.
Area code 520 is in the state of Arizona. It serves Tucson, Sierra Vista, Casa Grande and Oro Valley, and its principal city is Tucson.
The 520 area code is on Mountain Time (no DST) (America/Phoenix). The panel above shows the current local time there, updated live.
It depends on the local time in Arizona. Arizona has no calling-hour rule stricter than federal law, so the TCPA and the FTC's Telemarketing Sales Rule govern: solicitation calls are permitted only between 8 a.m. and 9 p.m. in the called party's local time. The live verdict above checks the current time against that window for you.
On weekdays, solicitation calls to Arizona numbers are permitted 8:00 AM to 9:00 PM local time. Sunday hours are 8:00 AM to 9:00 PM.
Not by itself. 520 is a legitimate Arizona area code used by residents and businesses in Tucson and Sierra Vista. Scammers do spoof caller ID to show a local area code, because people answer local numbers more often, so treat an unexpected call asking for payment or personal details with suspicion regardless of the prefix.

Reaching Tucson at scale?

VoiceDrop delivers ringless voicemails in your own AI-cloned voice and two-way SMS to Arizona lists, with calling-hour and DNC rules enforced automatically so every drop lands inside the legal window.

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