Sioux Falls, South Dakota
Central Time Zone (UTC-6) · SD · —
About Area Codes in Sioux Falls, South Dakota
Sioux Falls, South Dakota is served by area code 605, 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 Sioux Falls use the 605 area code prefix for local and long-distance dialing.
Frequently Asked Questions
What area code is Sioux Falls, South Dakota?
Sioux Falls, South Dakota uses area code 605.
What time zone is Sioux Falls in?
Sioux Falls is in the Central time zone (UTC-6).
Do I need to dial 10 digits when calling Sioux Falls?
Standard 7-digit dialing is used for local calls within Sioux Falls. However, 10-digit dialing is always accepted and required for long-distance calls.
When was area code 605 created?
Area code 605 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 605 with Sioux Falls?
Other cities sharing area code 605 with Sioux Falls include Aberdeen, Brandon, Brookings, Harrisburg, Huron, among others.
Sioux Falls, SD · Central Time Zone