ARIZONA · AREA CODE GUIDE
520 area code location: Tucson and Casa Grande, Arizona
- Local date and time
- Mountain Time
Map data: UCLA Geoportal (2015) · NANPA · US Census Bureau, checked 26 September 2026. Boundaries are approximate.
Use arrow keys to pan. To zoom, use plus and minus, or hold Ctrl or ⌘ and scroll. On touch screens, use two fingers.
Download the 520 area code map
520 area code at a glance
- State
- Arizona
- Primary cities
- Tucson, Casa Grande, and Sierra Vista
- Established
- Time zone
- Mountain Time
- Parent code
- 602
- New code planned
- No, as of 22 September 2026
- Answering calls
- Rules for answering calls in Arizona
An area code does not show where a caller is now.
History
- : 928 split from 520
Counties and cities covered
These are telephone exchange areas, which follow the phone network rather than city limits.
Counties of the communities we could place (the code may reach further): Cochise County, Gila County, Pima County, Pinal County, and Santa Cruz County.
- Tucson
- Casa Grande
- Sierra Vista
- Nogales
- Douglas
- Benson
- Bisbee
- Willcox
- Superior
- Tombstone
- Hayden
- Ajo
- Blackwater
- Bowie
- Casa Blanca
- Cascabel
- Elfrida
- Komatke
- Lone Butte
- Maricopa Village
- Pearce
- Portal
- Sacaton
- San Manuel
- San Simon
8 more communities
- Santa Rosa
- Sasabe
- Sells
- Silver Bell
- Stotonic
- Sunizona
- West San Simon
- Whitlow
Sources: NANPA area code listing, NANPA places by area code, U.S. Census Bureau county geography. Checked .
Business phone numbers in area code 520, answered by an AI agent
A local number for Tucson, Casa Grande, and Sierra Vista, Arizona, with an AI receptionist that takes caller details, answers the questions you give it, and books appointments. Numbers depend on what carriers have left.