520 Rate Centers & Exchanges
8 rate centers · Arizona · Mountain Time
A rate center is the geographic unit used by phone carriers to determine local calling areas and billing. Each rate center has a specific name and set of NXX exchanges (the 3-digit prefix after the area code) assigned to it. The map below shows the 8 rate centers within area code 520.
Rate Center Locations
8 centers in area code 520All Rate Centers in Area Code 520
| Rate Center |
|---|
|
Benson
|
|
Bisbee
|
|
Casa Grande
|
|
Hayden
|
|
Nogales
|
|
Sierra Vista
|
|
Superior
|
|
Tucson
|