Area code 712
Area code 712 serves Sioux City and nearby parts of Iowa, including Council Bluffs, Spencer and Carroll. It is on Central Time, which observes daylight saving time.
Area code 712 at a glance
| State | Iowa (IA) |
| Main city | Sioux City |
| Time zone | Central Time |
| UTC offset | UTC−6 in winter, UTC−5 in summer |
| Daylight saving time | Yes |
Cities in 712
- Sioux City
- Council Bluffs
- Spencer
- Carroll
An area code shows where a number was first assigned. Mobile numbers keep their area code when people move, so the person you’re calling may be somewhere else.
When you can call a 712 number
Federal telemarketing rules under the TCPA allow sales calls between 8 AM and 9 PM in the called person’s local time. Here is that window for a 712 number, shown in your own time zone.
General information, not legal advice. Some states add rules for Sundays, holidays or the number of calls. See our calling hours guide.
| If you’re on | You can call 712 between |
|---|---|
| Eastern | 9:00 AM to 10:00 PM |
| Central | 8:00 AM to 9:00 PM |
| Mountain | 7:00 AM to 8:00 PM |
| Arizona | 6:00 AM to 7:00 PM |
| Pacific | 6:00 AM to 7:00 PM |
See the time in 712 without leaving your CRM
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Other area codes in Iowa
Questions about 712
What time zone is area code 712?
Area code 712 is on Central Time. It observes daylight saving time.
Where is area code 712?
Area code 712 is in Iowa. Its main city is Sioux City, and it also covers Council Bluffs, Spencer and Carroll.
What are the legal hours to call a 712 number?
Under the federal TCPA, sales calls are allowed from 8 AM to 9 PM in the called person’s local time. Personal and informational calls are not limited by these hours.