Phone2

AI Receptionist

New

Calling

Messaging

Shared numbers

Caller ID

Call routing

Call analytics

Contacts

Unified inbox

Slack integration

AI transcription

Integrations

Small business

Startups

Sales teams

Real estate

Landlords

Contractors

Bookkeepers

Law firms

Recruiting teams

Support & success

View all industries

Toll-free numbers

800, 888, 877, and more prefixes.

Local numbers

Any US or Canada area code.

Vanity numbers

Memorable custom numbers.

Port your number

Keep your existing number.

Pricing

Help Center

Guides, FAQs, and tutorials.

Blog

Product updates and best practices.

Compare providers

See how Phone2 stacks up.

LLC phone numbers

Numbers for new businesses in top states.

Lookup API

New

Free phone number lookup tool.

Contact

Talk to the Phone2 team.

Log inSign Up
Area Codes/605
South Dakota State flag605 area code

Get a local phone number in Sioux Falls, SD

Biggest city

Sioux Falls

StateSouth Dakota
Major Cities

Sioux Falls, Rapid City, Aberdeen, Watertown, Brookings.

Timezone

Central (GMT -6)

Zip codes

57101•57198

Population

183,793

Unemployment

2.00%

Avg. Income

$87,676

Nearby Area Codes
218307

Last updated: November 12, 2025

605 • Sioux Falls

Starting at

$7/mo

Get started

605 area code summary

The 605 area code is an integral part of South Dakota's telecommunications network, serving the entire state and playing a crucial role in connecting its diverse communities.

Statewide Coverage in South Dakota: Unique among many states, South Dakota is served by a single area code – 605. Established in 1947, it covers all of South Dakota, from the larger cities like Sioux Falls, Rapid City, and Aberdeen to the rural and tribal lands that make up much of the state's landscape. This statewide coverage ensures uniformity in dialing and connectivity across the entire state. Supporting a Range of Economic and Social Activities: The 605 area code facilitates communication across South Dakota’s varied landscape, supporting an economy that includes agriculture, healthcare, finance, and tourism, particularly in areas like the Black Hills and Badlands. The state's cultural heritage, including significant Native American communities, and political activities, such as the state legislature in Pierre, also rely on the connectivity provided by the 605 area code. Stability in a Changing Telecommunications Landscape: Despite the nationwide trend of area code exhaustion and the introduction of overlays and splits in other regions, the 605 area code has remained sufficient for South Dakota's needs. This stability reflects the state's relatively low population density and efficient use of numbering resources.

The 605 area code is more than just a telecommunications feature; it represents the unity and identity of South Dakota, connecting its urban centers, rural areas, and tribal lands, and supporting the state's diverse economic, cultural, and political activities.

Fun fact 💡

Rapid City’s City of Presidents statues began in 2000, a 605 draw.

🏢 First Phone Company

Northwestern Bell (later Qwest)

📲 Get a 605 number: $7/mo
Customer Stories

What our users are saying

3
Team members, 1 number
We have 3 people using one business number – calls route to whoever is available. Clients think we have a full reception desk. Exactly what a small team needs.
C

Chris

Startup Founder

Why Phone2?

More than just a 605 number

Get a complete business phone system with features that help you never miss a customer.

40%
fewer missed calls

Shared Team Numbers

Your whole team shares one business number. When someone is busy, another teammate answers. No more missed opportunities.

24/7
call coverage

Smart Call Routing

Route calls by schedule, team, or IVR menu. After-hours calls go to voicemail or forward to on-call staff.

2+ hrs
saved per week

AI Transcription

Every voicemail and call automatically transcribed. Search conversations, catch details you missed, skip the playback.

50%
faster follow-ups

Unified Inbox

Calls, texts, and voicemails in one thread per contact. Your whole team sees the full conversation history.

3
platforms supported

Works Everywhere

iOS, Android, and web apps. Make calls from your laptop, take texts on your phone. Your number travels with you.

2 min
setup time

Instant Activation

Pick a number, download the app, start calling. No hardware, no technicians, no waiting. Works immediately.

Ready to get your 605 number?

Get a local business phone number in minutes. No contracts, cancel anytime.

Get a 605 numberView plans

Starting at $7/month • 30-day refund guarantee • Cancel anytime

Phone2

Your team's business phone

[email protected]
Irvine, CA • Vancouver, BC

Product

  • Features
  • Pricing
  • Integrations

Compare

  • All comparisons
  • Phone2 vs Google Voice
  • Phone2 vs Grasshopper
  • Phone2 vs RingCentral
  • Phone2 vs Dialpad

Resources

  • Help Center
  • Lookup APINew
  • Phone Numbers
  • Area Codes
  • LLC Phone Numbers
  • FAQ
  • Status
  • ✨ Hey AI, learn about us

Company

  • Blog
  • Contact Us
  • Terms of Service
  • Privacy Policy

© 2026 Phone2 Inc. All rights reserved.

All systems operational