Local Phone Numbers
South Dakota
605 Area Code
605 Area Code
Get a South Dakota Local Phone Number with DialLink
Establish a Local Presence in South Dakota
No Office Needed
The 605 area code is unique because it covers the entire state of South Dakota. From Sioux Falls and Rapid City to Pierre and smaller towns across the plains, a 605 number instantly shows customers you’re part of their community. Whether your business serves agriculture, tourism, healthcare, or education, having a 605 number helps build trust and familiarity statewide.
With DialLink, SMBs and startups can secure a 605 area code number in minutes. Our AI-powered business phone system allows you to manage calls, texts, and voicemails from one platform, keeping your team connected and professional from anywhere.
Why Choose a 605 Area Code?
As one of the original area codes established in 1947, 605 has a long history and is still the only area code serving South Dakota. That makes it an instantly recognizable part of the state’s identity. Businesses using a 605 area code number are seen as local, whether they’re operating out of Sioux Falls, Rapid City, or working remotely. It’s the easiest way to build local credibility while reaching customers across the entire state.
Get More Than a Local Number
A phone number with DialLink comes with more than just digits. It gives your business access to modern communication tools, including:
AI Voice Agents
Automate routine calls, appointment booking, and more
AI call tagging & summaries
Get insights into calls and improve follow-ups
Advanced call handling
Customize call flows, routing, and voicemail rules
Work from anywhere
Answer calls on mobile, desktop, web app, or desk phones
Plug-and-play setup
Get started in minutes with no IT experts required
AI-powered business messaging
Get AI-generated suggestions and send replies instantly
Who Can Benefit from a Local Phone Number
Local and remote businesses serving South Dakota residents
Startups expanding into Midwest and Plains markets
Healthcare providers, universities, and service organizations
Tourism operators and agricultural businesses
How to Get a Local Number with DialLink
Sign up for any DialLink plan
Pick a local number during setup, or port your existing one
Start making and receiving calls instantly via mobile, desktop, web, or desk phones
Choose Your Local Phone Number
Frequently Asked Questions
What area code is 605?
Area code 605 is assigned to the entire state of South Dakota.
What city is the 605 area code?
The 605 area code isn’t tied to one city, it covers all of South Dakota, including Sioux Falls, Rapid City, and Pierre.
Where in US is area code 605 located?
Area code 605 is located in the state of South Dakota, serving every city and town statewide.
What area codes are from South Dakota?
South Dakota has only one area code — 605 — which serves the entire state.
What is the area code of the United States?
The United States doesn’t have a single nationwide area code. Instead, it uses the country code +1, followed by regional area codes.
How many unique numbers can there be per area code?
Each area code can support up to about 7.9 million unique phone numbers, depending on demand and allocation.
How do area codes on phone numbers work?
Area codes define geographic regions under the North American Numbering Plan (NANP). They ensure calls are routed properly across states and cities.
Why do landline phone numbers have area codes?
Area codes were introduced to divide regions as the demand for phone lines grew, ensuring calls are directed accurately without overlap.
