Denison, Iowa
Central Time Zone (UTC-6) · IA · —
About Area Codes in Denison, Iowa
Denison, Iowa is served by area code 712, which was one of the original area codes established in 1947 under the North American Numbering Plan. The city falls within the Central time zone (UTC-6). All calls to and from Denison use the 712 area code prefix for local and long-distance dialing.
Other cities in area code 712
Frequently Asked Questions
What area code is Denison, Iowa?
Denison, Iowa uses area code 712.
What time zone is Denison in?
Denison is in the Central time zone (UTC-6).
Do I need to dial 10 digits when calling Denison?
Standard 7-digit dialing is used for local calls within Denison. However, 10-digit dialing is always accepted and required for long-distance calls.
When was area code 712 created?
Area code 712 is one of the original 86 area codes established in 1947 as part of the North American Numbering Plan (NANP).
What cities share area code 712 with Denison?
Other cities sharing area code 712 with Denison include Atlantic, Carroll, Cherokee, Council Bluffs, Le Mars, among others.
Denison, IA · Central Time Zone