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.

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.

Core Features for Customer Communications

Make and Receive Calls from Anywhere

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View Every Customer Interaction in One Thread

DialLink keeps all communication with each contact in a single thread. See inbound, outbound, and missed calls alongside voicemails, SMS, and WhatsApp messages in one organized view.

Collaborate on Calls and Messages

DialLink allows multiple team members to access the same phone line. Calls, voicemails, and messages are visible to the team, making it easy to manage customer conversations together.

Easy Desk Phone Setup

Give your team the reliability of dedicated desk phones. DialLink works smoothly with many popular desk phone models, making setup simple and quick.

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

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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

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AI-powered business messaging

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Whether you're in South Dakota or thousands of miles away, DialLink helps your business sound local, work smarter, and scale seamlessly.

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
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Expand Beyond Area Code 605

DialLink makes it easy to expand beyond South Dakota. Activate local and international numbers in more than 100 countries and scale your operations globally, all while managing communications in one unified system.

Frequently Asked Questions

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605 Area CodeGet a South Dakota Local Phone Number with DialLink