Rio Area Code

Rio, FL is served by area code 772. This area code was initially assigned on 25-AUG-01 and has been in continuous service since 11-FEB-02, supporting the city's growing communication needs over the years.

City Name	Rio, FL
Area Code	772
State	Florida
Country	United State
Time Zone	Eastern Standard Time (EST)
Code Type	General Purpose Code
In Service	Yes
Assignment Date	25-AUG-01
In Service Date	11-FEB-02

Rio, IL is served by area code 309. This area code was initially assigned on 01-JAN-57 and has been in continuous service since 01-JAN-57, supporting the city's growing communication needs over the years.

The area code 309 is part of an overlay complex (309/861), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.

City Name	Rio, IL
Area Code	309
Overlay Complex	309/861
State	Illinois
Country	United State
Time Zone	Central Standard Time (CST)
Code Type	General Purpose Code
In Service	Yes
Assignment Date	01-JAN-57
In Service Date	01-JAN-57

Rio, WI is served by area code 920. This area code was initially assigned on 15-JAN-97 and has been in continuous service since 26-JUL-97, supporting the city's growing communication needs over the years.

The area code 920 is part of an overlay complex (274/920), which serves the same geographic region. This means that multiple area codes are used in the same area to accommodate the increasing demand for phone numbers.

City Name	Rio, WI
Area Code	920
Overlay Complex	274/920
State	Wisconsin
Country	United State
Time Zone	Central Standard Time (CST)
Code Type	General Purpose Code
In Service	Yes
Assignment Date	15-JAN-97
In Service Date	26-JUL-97