520 Area Code: Cities, Time Zone and Zip Codes
What area code is 520? The area code 520 is located in Arizona and it serves Tucson, Casa Adobes, Catalina Foothills, Casa Grande, Sierra Vista, Maricopa, Oro Valley, Marana, Drexel Heights, and some other surrounding cities. The area code 520 was created from area code 602 on January 21, 1994, and was first put to use on March 19, 1994.
The top counties that are being served by the 520 area code are Pima County, Pinal County, Cochise County, and Santa Cruz County.
The major cities under each of these counties that are being served by the 520 area code are listed below:
Cochise County
The cities within Cochise County that are served by the 520 area code include Benson, Bisbee, Bowie, Cochise, Douglas, Dragoon, Elfrida, Fort Huachuca, Hereford, Huachuca City, McNeal, Naco, Pearce, Pirtleville, Pomerene, Saint David, San Simon, Sierra Vista, Tombstone, and Willcox.
Gila County
The cities within Gila County that are served by the 520 area code include Hayden.
Graham County
The cities within Graham County that are served by the 520 area code include Willcox.
Pima County
The cities within Pima County that are served by the 520 area code include Ajo, Arivaca, Catalina, Cortaro, Green Valley, Lukeville, Marana, Mount Lemmon, Rillito, Sahuarita, Sasabe, Sells, Topawa, Tucson, and Vail.
Pinal County
The cities within Pinal County that are served by the 520 area code include Arizona City, Bapchule, Casa Grande, Coolidge, Eloy, Florence, Kearny, Mammoth, Marana, Maricopa, Oracle, Picacho, Red Rock, Sacaton, San Manuel, Stanfield, Superior, Valley Farms, and Winkelman.
Santa Cruz County
The cities within Santa Cruz County that are served by the 520 area code include Amado, Elgin, Nogales, Patagonia, Rio Rico, Sonoita, Tubac, and Tumacacori
520 Area Code Time Zone
What time zone is 520 Area Code? The time zone in the 520 area code is the Mountain Standard Time zone which is abbreviated as MST. The Mountain Standard Time is UTC/GMT -7:00 hours.
Significance of 520 Area Code
I don’t know if you notice that there is a three-digit number that precedes a telephone number any time you receive a call from your cell phone. Any time you see the three-digit code 520, it suggests that the call comes from any of the cities or counties listed above. However, there may be an exemption to this. With the use of mobile phone or roaming phone feature, the caller may not necessarily be at any of these cities or counties at the time of calling.
Nevertheless, knowing the counties and cities that the 520 area code covers can guide you when to call a particular person. This is because the person you want to call may be in a time zone that is different from your own.
Telephone Carriers in 520 Area Code
If you want to get a wireless telephone within the 520 area code, the popular wireless telephone carriers that you can approach include Cingular Wireless, Verizon Wireless, T-mobile, Sprint, Cricket Comm, Network Services (tsr), Qwest Corporation, American Messaging Services, Commnet Wireless, and USA Mobility Wireless.
For landline, popular carriers are Qwest Corporation, Level 3 Comms, TW Telecom, Integra Telecom, Bandwidth.com Clec, Gila River Telecomm, Valley Telephone Cooperative, Mcleodusa Telecom Services, Xo Arizona, Cox Arizona Telcom, Global crossing Local Services, Onvoy, Midvale Telephone Exchange, AT&T Local, North County Comms Corp, Broadvox-clec, Teleport America, 360networks (usa), Gila Local Exchange Carrier, Xspedius Management Co. Switched Services Az, Tohono Oódham Utility Authority, Table Top Telco, Comcast Phone, MCC Telephony of the West, Neutral Tandem, Brooks Fiber Comms of Tucson, Valley Connection, and Pac – West Telecomm.
Zip Codes in 520 Area Code
| City | County | State | Area Code | Zip Code |
| Ajo | Pima | Arizona | 520 | 85321 |
| Amado | Santa Cruz | Arizona | 520 | 85645 |
| Arivaca | Pima | Arizona | 520 | 85601 |
| Arizona City | Pinal | Arizona | 520 | 85123 |
| Bapchule | Pinal | Arizona | 520 | 85121 |
| Benson | Cochise | Arizona | 520 | 85602 |
| Bisbee | Cochise | Arizona | 520 | 85603 |
| Bowie | Cochise | Arizona | 520 | 85605 |
| Casa Grande | Pinal | Arizona | 520 | 85122 |
| Casa Grande | Pinal | Arizona | 520 | 85193 |
| Casa Grande | Pinal | Arizona | 520 | 85194 |
| Casa Grande | Pinal | Arizona | 520 | 85130 |
| Catalina | Pima | Arizona | 520 | 85738 |
| Cochise | Cochise | Arizona | 520 | 85606 |
| Coolidge | Pinal | Arizona | 520 | 85128 |
| Cortaro | Pima | Arizona | 520 | 85652 |
| Douglas | Cochise | Arizona | 520 | 85607 |
| Douglas | Cochise | Arizona | 520 | 85655 |
| Douglas | Cochise | Arizona | 520 | 85608 |
| Dragoon | Cochise | Arizona | 520 | 85609 |
| Elfrida | Cochise | Arizona | 520 | 85610 |
| Elgin | Santa Cruz | Arizona | 520 | 85611 |
| Eloy | Pinal | Arizona | 520 | 85131 |
| Florence | Pinal | Arizona | 520 | 85132 |
| Fort Huachuca | Cochise | Arizona | 520 | 85613 |
| Fort Huachuca | Cochise | Arizona | 520 | 85670 |
| Green Valley | Pima | Arizona | 520 | 85622 |
| Green Valley | Pima | Arizona | 520 | 85614 |
| Hayden | Gila | Arizona | 520 | 85135 |
| Hereford | Cochise | Arizona | 520 | 85615 |
| Huachuca City | Cochise | Arizona | 520 | 85616 |
| Kearny | Pinal | Arizona | 520 | 85137 |
| Lukeville | Pima | Arizona | 520 | 85341 |
| Mammoth | Pinal | Arizona | 520 | 85618 |
| Marana | Pinal | Arizona | 520 | 85658 |
| Marana | Pima | Arizona | 520 | 85653 |
| Maricopa | Pinal | Arizona | 520 | 85138 |
| Maricopa | Pinal | Arizona | 520 | 85139 |
| McNeal | Cochise | Arizona | 520 | 85617 |
| Mount Lemmon | Pima | Arizona | 520 | 85619 |
| Naco | Cochise | Arizona | 520 | 85620 |
| Nogales | Santa Cruz | Arizona | 520 | 85621 |
| Nogales | Santa Cruz | Arizona | 520 | 85628 |
| Nogales | Santa Cruz | Arizona | 520 | 85662 |
| Oracle | Pinal | Arizona | 520 | 85623 |
| Patagonia | Santa Cruz | Arizona | 520 | 85624 |
| Pearce | Cochise | Arizona | 520 | 85625 |
| Picacho | Pinal | Arizona | 520 | 85141 |
| Pirtleville | Cochise | Arizona | 520 | 85626 |
| Pomerene | Cochise | Arizona | 520 | 85627 |
| Red Rock | Pinal | Arizona | 520 | 85145 |
| Rillito | Pima | Arizona | 520 | 85654 |
| Rio Rico | Santa Cruz | Arizona | 520 | 85648 |
| Sacaton | Pinal | Arizona | 520 | 85147 |
| Sahuarita | Pima | Arizona | 520 | 85629 |
| Saint David | Cochise | Arizona | 520 | 85630 |
| San Manuel | Pinal | Arizona | 520 | 85631 |
| San Simon | Cochise | Arizona | 520 | 85632 |
| Sasabe | Pima | Arizona | 520 | 85633 |
| Sells | Pima | Arizona | 520 | 85634 |
| Sierra Vista | Cochise | Arizona | 520 | 85650 |
| Sierra Vista | Cochise | Arizona | 520 | 85635 |
| Sierra Vista | Cochise | Arizona | 520 | 85671 |
| Sierra Vista | Cochise | Arizona | 520 | 85636 |
| Sonoita | Santa Cruz | Arizona | 520 | 85637 |
| Stanfield | Pinal | Arizona | 520 | 85172 |
| Superior | Pinal | Arizona | 520 | 85173 |
| Tombstone | Cochise | Arizona | 520 | 85638 |
| Topawa | Pima | Arizona | 520 | 85639 |
| Tubac | Santa Cruz | Arizona | 520 | 85646 |
| Tucson | Pima | Arizona | 520 | 85736 |
| Tucson | Pima | Arizona | 520 | 85742 |
| Tucson | Pima | Arizona | 520 | 85749 |
| Tucson | Pima | Arizona | 520 | 85708 |
| Tucson | Pima | Arizona | 520 | 85701 |
| Tucson | Pima | Arizona | 520 | 85704 |
| Tucson | Pima | Arizona | 520 | 85706 |
| Tucson | Pima | Arizona | 520 | 85710 |
| Tucson | Pima | Arizona | 520 | 85711 |
| Tucson | Pima | Arizona | 520 | 85713 |
| Tucson | Pima | Arizona | 520 | 85714 |
| Tucson | Pima | Arizona | 520 | 85716 |
| Tucson | Pima | Arizona | 520 | 85718 |
| Tucson | Pima | Arizona | 520 | 85719 |
| Tucson | Pima | Arizona | 520 | 85730 |
| Tucson | Pima | Arizona | 520 | 85739 |
| Tucson | Pima | Arizona | 520 | 85741 |
| Tucson | Pima | Arizona | 520 | 85743 |
| Tucson | Pima | Arizona | 520 | 85746 |
| Tucson | Pima | Arizona | 520 | 85750 |
| Tucson | Pima | Arizona | 520 | 85755 |
| Tucson | Pima | Arizona | 520 | 85757 |
| Tucson | Pima | Arizona | 520 | 85756 |
| Tucson | Pima | Arizona | 520 | 85735 |
| Tucson | Pima | Arizona | 520 | 85745 |
| Tucson | Pima | Arizona | 520 | 85707 |
| Tucson | Pima | Arizona | 520 | 85712 |
| Tucson | Pima | Arizona | 520 | 85715 |
| Tucson | Pima | Arizona | 520 | 85721 |
| Tucson | Pima | Arizona | 520 | 85747 |
| Tucson | Pima | Arizona | 520 | 85705 |
| Tucson | Pima | Arizona | 520 | 85709 |
| Tucson | Pima | Arizona | 520 | 85737 |
| Tucson | Pima | Arizona | 520 | 85748 |
| Tucson | Pima | Arizona | 520 | 85731 |
| Tucson | Pima | Arizona | 520 | 85740 |
| Tucson | Pima | Arizona | 520 | 85754 |
| Tucson | Pima | Arizona | 520 | 85702 |
| Tucson | Pima | Arizona | 520 | 85726 |
| Tucson | Pima | Arizona | 520 | 85752 |
| Tucson | Pima | Arizona | 520 | 85775 |
| Tucson | Pima | Arizona | 520 | 85732 |
| Tucson | Pima | Arizona | 520 | 85723 |
| Tucson | Pima | Arizona | 520 | 85751 |
| Tucson | Pima | Arizona | 520 | 85734 |
| Tucson | Pima | Arizona | 520 | 85724 |
| Tucson | Pima | Arizona | 520 | 85744 |
| Tucson | Pima | Arizona | 520 | 85728 |
| Tucson | Pima | Arizona | 520 | 85733 |
| Tucson | Pima | Arizona | 520 | 85722 |
| Tucson | Pima | Arizona | 520 | 85725 |
| Tucson | Pima | Arizona | 520 | 85720 |
| Tucson | Pima | Arizona | 520 | 85703 |
| Tucson | Pima | Arizona | 520 | 85717 |
| Tumacacori | Santa Cruz | Arizona | 520 | 85640 |
| Vail | Pima | Arizona | 520 | 85641 |
| Valley Farms | Pinal | Arizona | 520 | 85191 |
| Willcox | Graham | Arizona | 520 | 85643 |
| Willcox | Cochise | Arizona | 520 | 85644 |
| Winkelman | Pinal | Arizona | 520 | 85192 |