South Dakota Phone Number Lookup

Sioux Falls and Rapid City share the same area code, 605, and our free South Dakota reverse phone lookup works for any number in the state. Fake lawsuit threats and bogus job offers top the reports.

  • 100% Free
  • No Signup Required

Reverse Phone Lookup by South Dakota Area Code

South Dakota has one area code, 605, used statewide. Sioux Falls, Rapid City, and Aberdeen all share it.

South Dakota Area Code Map with Cities

South Dakota has approximately 1.2 million active phone numbers. Cell phones make up the majority with 959,000 users, while traditional landlines have diminished to 113,000 connections statewide. Internet phone services account for about 108,000 numbers.

South Dakota Phone Scams & Numbers Reported for Spam Calls

Recently Reported South Dakota Phone Numbers

South Dakota phone numbers recently reported for making unwanted sales calls or robocalls:

Phone Number FTC Complaints Last Reported
(605) 415-9436
3
(605) 316-3660
2
(605) 210-6225
2
(605) 608-9021
2
(605) 223-2955
1
(605) 299-2110
1
(605) 468-2608
1
(605) 468-2641
1
(605) 923-0110
1
(605) 432-9938
1

Common Phone Scams Targeting South Dakota Residents

  • CenturyLink / AT&T Mandatory Digital Switch: Callers threatening businesses with $199 per-line fees unless they agree to a mandatory transition from copper to digital lines.
  • Voicemail Forwarding & Hijacking Scam: Hackers compromising carrier accounts to secretly forward inbound calls and voicemails to unknown 605 numbers.
  • 'Agneta Bevan' Personal Assistant Text: Fake Indeed recruiters offering $500/week for errand running, directing victims to outlook.com emails for fake check scams.

Monthly Spam Call Complaints Reported to the FTC

In September 2026, South Dakota residents filed 378 complaints to the FTC about phone numbers making unwanted calls and text messages, down 19% from the previous month.

482
Nov
2025
363
Dec
2025
475
Jan
2026
448
Feb
2026
495
Mar
2026
508
Apr
2026
416
May
2026
335
Jun
2026
365
Jul
2026
464
Aug
2026
378
Sep
2026
194
Oct▲
2026

Look Up Phone Numbers by South Dakota City

Check unknown numbers reported by locals and find phone numbers for police, hospitals and other local services in the largest cities in South Dakota.

Verify Government Callers with Official South Dakota Phone Directory

The official numbers for South Dakota government offices are in South Dakota State Phone Book. Use it to check a caller before you share anything.

South Dakota State Phone Book

State of South Dakota Phone Book with a keyword filter and a list of employee and office phone numbers

The State of South Dakota Phone Book lists South Dakota state employees and offices, each with a tap-to-call phone number. Narrow it with the Keyword Search in the Filter State Employee Results panel, by name or office.

If someone claims to be calling for a state office, search the office and tap its number. The phone book loads inside SD.gov's Citizen Portal and can take a moment to appear.

Is Reverse Phone Lookup Legal in South Dakota?

Yes. South Dakota has no comprehensive state consumer privacy law. Residents using reverse phone lookup services for personal purposes face no state-level restrictions. Federal FCRA rules apply here as in every state: lookup results may not be used for employment screening, tenant decisions, or credit and insurance underwriting.

South Dakota Phone Number Search FAQ

How do I remove my phone number from South Dakota directories?

South Dakota doesn't have a privacy law, but you can still request removal from phone directory sites. Go to each site's privacy page and fill out their opt-out or removal form.

How do I know if a South Dakota business phone number is legit?

A reverse phone lookup can provide a business name, but that alone does not confirm legitimacy. While South Dakota has over 28,857 business establishments based on Census data, you should verify the company by searching for it in the South Dakota Business Info Search.

What types of phone numbers are in South Dakota?

South Dakota has 959,000 mobile subscriptions, 108,000 VoIP lines, and 113,000 landlines.

  1. US Phone Number Lookup
  2. / South Dakota