Pick 605 if the number should read as Sioux Falls.
The numbering administrator’s records show the most numbers in Sioux Falls and Rapid City.
The area code for Sioux Falls is 605.
Area codes in Sioux Falls
Get a phone number with the right area code for Sioux Falls.
605 is the one code of Sioux Falls, and of the whole of South Dakota. It has been in service since 1947 and has never been split or overlaid.
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Sioux Falls has one area code.
Pick 605 for Sioux Falls, the only code in South Dakota.
Pick 605 to reach Rapid City too.
Rapid City, Aberdeen, Brookings and Pierre use the same code, so a Sioux Falls number fits the whole state.
People filed 65 FCC complaints about unwanted calls from the Sioux Falls area code in 12 months.
From October 2025 to September 2026, 65 unwanted-call complaints filed with the FCC gave a caller ID number that started with 605.
- 65unwanted-call complaints named a Sioux Falls code
Sioux Falls codes
How many complaints named a caller ID that starts with the Sioux Falls code.
- 1605Sioux Falls, Rapid City and all of South Dakota65
Source: Federal Communications Commission, CGB - Consumer Complaints Data (dataset 3xyp-aqkj), issue "Unwanted Calls", read on November 4, 2026. Caller ID can be faked, so a code shows what appeared on the phone, not where the caller was.
This is how you get a Sioux Falls number.
- 1
Start your free week.
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- 2
Type the code you picked.
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- 3
Hand the number out.
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People ask these questions about the Sioux Falls area code.
More in the full FAQ.
No. No other area code is used in the state.
It began on October 24, 2021, and every provider had finished by July 15, 2022.
A local call in Sioux Falls is dialed with ten digits. The area code is part of every number you give out.
From October 2025 to September 2026, people filed 65 FCC complaints about unwanted calls from numbers that start with a Sioux Falls code: 605 (65). A complaint is one person's report. Caller ID can be faked, so a code shows what appeared on the phone, not where the caller was.
Yes. You type the area code you want when you create a number, and you do not need to live in Sioux Falls. Calls ring the phone you already have, and texts land in your ExpressNumber inbox.
No. Your numbers are receive-only: they take calls and texts, and they never make them. You answer calls on your own phone, and you cannot reply to a text from the inbox.
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Codes around Sioux Falls
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Every fact on this page comes from public numbering records.
The codes, the places and the years are rows of the North American Numbering Plan Administrator's area code database, and the complaints are the FCC's own.
Put a Sioux Falls code on a number you can burn.
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