Identify who called from any unknown South Dakota landline or cell phone number using our free reverse phone lookup service. Enter a phone number above, click search, and get the caller's name, address, phone carrier, and other details.
ThisNumber database includes over 28 million name and address records for about 23 million United States phone numbers. Stop wondering who called you. Identify the unknown callers, verify South Dakota businesses, or research potential scam calls.
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To identify the location of an South Dakota phone number, you need to understand the North American Numbering Plan (NANP) structure that all South Dakota numbers follow: +1 NPA NXX XXXX.
The area code (NPA) is your key to determining location. By matching the three-digit area code to South Dakota's regional assignments, you can identify which part of the state the phone number originates from. Each area code corresponds to specific cities and counties throughout South Dakota, making it possible to narrow down the caller's general location.
Here's a complete list of South Dakota area codes with major cities:
Area Codes | Cities |
---|---|
605 | Sioux Falls, Rapid City, Aberdeen |
For latest South Dakota phone numbering regulations, contact Joseph Rezac at the South Dakota PUC via [email protected] or 605-773-5285.
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.
This means that when you search a South Dakota phone number, it's most likely a cell phone. The ongoing decline of landlines indicates that newer phone numbers might be more challenging to trace compared to older landline numbers that traditionally had more accessible public information.
South Dakota Voice Subscriptions (in thousands):
Service Type | June 2023 | Dec 2023 | June 2024 |
---|---|---|---|
Mobile telephony | 931 | 947 | 959 |
Local exchange telephone service | 126 | 118 | 113 |
VoIP subscriptions | 103 | 106 | 108 |
Total | 1,160 | 1,171 | 1,180 |
Source: FCC Voice Telephone Services Report
Most phone numbers are cell phones, and most cell phone numbers come from the top three United States wireless companies. Here are the top five US Cell Phone Companies in Q1 2025:
South Dakota residents experienced a slight decrease in unwanted calls in 2024, with complaints totaling 3,927. This is a decrease from the peak of 8,237 complaints in 2021, according to the latest National Do Not Call Registry Data Book.
Key Facts for South Dakota Residents:
According to the Federal Trade Commission's 2024 data, phone calls and text messages make up 35% of all fraud contact methods nationwide:
More than 1 in 3 fraud attempts happen through phone communication. Phone call fraud costs victims a median of $1,500 per case. Text message fraud costs a median of $1,000 per victim.
In 2024, South Dakota residents reported 3,880 fraud cases resulting in total losses of $20,431,576, with a median loss of $$400 per victim. With phone-based fraud representing such a significant portion of these cases, phone owner verification has become a critical consumer protection tool.
When you receive calls from unknown numbers, take a moment to research the caller's identity. Reverse phone lookup services allow you to search a phone number to find information about who's calling—including whether the number has been reported for fraudulent activity.
Received fraudulent calls or fallen victim to phone fraud? Report it immediately. Each report helps authorities identify fraud patterns and protect other consumers from similar scams.
Additional Contact:
South Dakota Attorney General
Marty Jackley
(605) 773-3215
Sometimes, a basic reverse phone lookup doesn't give you all the information you need about a South Dakota phone number. When that happens, these alternative search methods can help you find out more. With a population of 924,669 and 28,857 business establishments in South Dakota, sometimes you need to try a few different ways to find the information you’re looking for.
Social media platforms can be helpful if you want to verify a phone number. For example, if you're meeting someone new and want to verify their phone number legitimacy, social media searches can help.
If you suspect a phone number belongs to a South Dakota business, you can use official state databases to confirm this. For example, If you're considering business partnerships with South Dakota companies, this helps you verify their phone number.
For the best results, it helps to use these methods together.