605
South Dakota's Only Code Since 1947
The 605 area code has covered all of South Dakota since 1947 and has never split or overlaid. Learn its history, coverage, dialing rules, and how to get a local number.
SD · 1 Area Code
South Dakota
Area Codes
South Dakota's economy leans on financial services and agriculture, centered around Sioux Falls, Rapid City, and Aberdeen. Get a local virtual phone number with any South Dakota area code — instant setup, no physical office required.
1 area codes
< 10 min setup
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// Why SD Virtual Numbers
Why businesses choose a South Dakota virtual number
A local South Dakota number builds trust before the call connects — and keeps costs at zero.
3×
more likely to answer
Higher pickup rates in SD
South Dakota residents and businesses are significantly more likely to answer calls from a local area code than out-of-state or toll-free numbers. A local number is the first step to getting the call connected.
01 — South Dakota at a Glance
South Dakota, by the numbers.
South Dakota was assigned area code 605 in 1947, one of the original 86 codes, and the entire state has shared it ever since.
Sioux Falls, Rapid City, Aberdeen, and every other town all dial the same code.
Low population density has kept demand modest, so regulators have never needed a split or an overlay.
In 2021, South Dakota moved to mandatory 10-digit dialing — not from a new code, but because some 605 exchanges had used 988 as a prefix before it became the national crisis line.
Did you know?
605 is one of only fifteen of the original 1947 area codes still covering an entire state today, meaning Sioux Falls and the most remote South Dakota ranch share the exact same code.
// 1 area codes
South Dakota Virtual Phone Numbers
Select any area code to get a local virtual number for that region of South Dakota.
// Who Uses South Dakota Numbers
Industries that rely on South Dakota virtual numbers
South Dakota's business landscape is anchored by financial services and agriculture — but local numbers drive better outcomes across every industry.
Real Estate
Agents use local area codes to build trust with buyers and sellers. A local number signals community investment.
Sales Teams
Outbound sales teams with local codes see dramatically higher pickup rates and more productive conversations.
Customer Support
Support teams with local numbers reduce friction for customers who prefer calling a familiar prefix.
Remote & Hybrid Teams
Distributed teams maintain a consistent local brand across all South Dakota markets without sharing personal numbers.
Professional Services
Lawyers, accountants, and consultants use local numbers to signal proximity and professionalism.
Small Business
Local businesses use virtual numbers to expand service areas and handle overflow without extra staff.
// Get Started
Get a South Dakota number in 3 steps
Active the same day. No hardware, no contracts.
- 01Step 01
Choose a SD area code
Browse all South Dakota area codes and pick the region that best serves your customers. Every South Dakota code is available instantly.
- 02Step 02
Select your number
Choose from available numbers in your selected area code. Vanity and memorable options available upon request.
- 03Step 03
Go live in under 10 minutes
Configure call routing, business hours, and voicemail from your Rozper dashboard. Your South Dakota number is active immediately.
// Complete List
All US area codes by state.
Every state and territory, every active area code. Click a state to browse its codes.
List of USA States and Their Area Codes
StateArea CodesTime ZoneCount
209213310323341408415424442510530559562619626628650657661669707714747760805818820831858909916925949951
PT34Frequently Asked
South Dakota number questions answered.
Everything you need to know before getting a South Dakota virtual phone number.
South Dakota has 1 active area code. Rozper offers virtual phone numbers for all of them — you can browse, select, and activate any South Dakota area code from one dashboard.
Most South Dakota numbers go live in under 10 minutes. Ask us how.
Get your South Dakota number, not tomorrow.
Pick a South Dakota area code, choose your number, and start calling immediately. No hardware, no contracts, no waiting.