South Dakota Sioux FallsGeographic

Area Code 605

Sioux Falls, South Dakota

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27,783

Available Numbers

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Cities Covered

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Chicago

Timezone

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10-digit

Dialing Rules

Coverage Area

605 Cities and regions covered

South Dakota · SD

Major Cities

Sioux Falls Rapid City Aberdeen Brookings Watertown Mitchell Pierre Huron Yankton Vermillion

In Service 1947-01-01

Status Active

Area Code History

605

605区号于1947年投入使用，覆盖整个南达科他州，是该州唯一的区号。

Dialing Rules

605

10-digit

When dialing 605 area code numbers, follow these rules:

Local calls require full 10-digit dialing (area code + 7-digit number)
Long-distance calls require 1 + area code + 7-digit number

Why 605 is Valuable for Business

605 · Sioux Falls

The 605 area code covers Sioux Falls and surrounding areas, making it one of the most commercially valuable area codes in South Dakota. Owning a premium 605 number enhances your business image and customer trust.

Premium Numbers

605 Premium numbers in this area code

FAQ

605 FAQ

What state is the 605 area code in?

The 605 area code is in South Dakota (SD), primarily covering Sioux Falls and surrounding areas.

How do I get a premium 605 area code number?

You can search and buy premium 605 numbers on GreatNumber. We offer one-time payment with lifetime ownership — no monthly fees or hidden charges. We provide full porting assistance after purchase.

Can I port a 605 number to another carrier?

Yes, all numbers purchased on GreatNumber can be ported to any carrier of your choice (T-Mobile, AT&T, Verizon, etc.). Porting typically takes 3-14 business days, and we provide full bilingual support.

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Browse all available premium numbers in the 605 area code.

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Area Code 605

605 Cities and regions covered

Major Cities

605

605

605 · Sioux Falls

605 Premium numbers in this area code

605 FAQ

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