Lookup › Area code 605
605 Area Code — Sioux Falls, South Dakota
Area code 605 serves Sioux Falls, SD.
Most looked-up 605 numbers
Phone prefixes in 605
Carriers serving 605
- Verizon (3 numbers)
- Bandwidth (1 numbers)
- Northeast Nebraska Telephone C (1 numbers)
- At&t Local (1 numbers)
- Northern Valley Communications (1 numbers)
Frequently asked questions
Where is area code 605?
Area code 605 serves Sioux Falls, SD.
What prefixes are in area code 605?
Phone2.io tracks 7 phone prefixes in area code 605, with carrier and spam-report data on individual numbers.
More about area code 605
Area code 605 overview, history, and local numbers · Get a SD phone number
Last updated: April 15, 2026