About Area Code 712
Area code 712 serves Iowa, covering major cities including Sioux City. Operating in the Central Time (CT), this code was established in 1947.
| State | Time Zone | Cities |
|---|---|---|
| Iowa | Central Time (CT) | Sioux City |
Active Area Code
712
Iowa
Central Time (CT)
Est. 1947
PRIMARY
Location
Iowa
Sioux City
ACTIVE
Coverage
1 Cities
Since 1947
Beware of Spam Calls
Scammers frequently use 712 numbers. Always verify unknown callers before sharing personal information.
Protect Yourself NowCommon Questions
Where is 712?
Located in Iowa, serving Sioux City and surrounding areas.
What time zone?
Operates in Central Time (CT).
When established?
Area code 712 was introduced in 1947.
Used for spam?
Can be used by legitimate and fraudulent callers. Always verify unknown numbers.