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US area code · South Dakota

Area code 605

Where the 605 area code is, its overlay and how to dial a +1 605 number from anywhere.

CoversAberdeen, South DakotaTime zoneCMTypeGeographic
Quick answer

The 605 area code is in Aberdeen, South Dakota, United States (CM). To call from abroad: +1 605 555-0123.

StateSouth Dakota
Main areaAberdeen
Time zoneCM
TypeGeographic
10-digit dialingRequired
In service since01-Jan-1947

The 605 area code is a geographic North American Numbering Plan (NANP) code covering Aberdeen, South Dakota. It has been in service since 01-Jan-1947 and sits in the CM time zone.

How to dial a 605 number

From abroad+1 605 555-0123
Within the US / Canada1 605 555-0123
Locally (same area)605 555-0123

Cities in the 605 area code

A 605 number is usually in one of these places in South Dakota — 5 counties.

Aberdeen BrownPierre HughesRapid City PenningtonSioux Falls Lincoln;MinnehahaWatertown Codington

Frequently asked questions

Where is the 605 area code?

The 605 area code is in Aberdeen, South Dakota, United States (CM).

Do I have to dial 10 digits for 605?

Yes — dial the area code plus the seven-digit number.

How do I call a 605 number from another country?

Dial your exit code (or +), then 1, then 605, then the number: +1 605 555-0123.

Source: NANPA numbering plan. An area code covers a region, not a precise address — a 605 number does not pinpoint a street or ZIP code.

Missed a call from +1 605?

In the 30 days to September 24, 2026, 245 unwanted calls showing a 605 number were reported to the US Federal Trade Commission, 73% of them recorded messages or robocalls. That puts 605 at #313 of 670 area codes reported.

Reducing your debt (credit cards, mortgage, student loans)82
Other72
Dropped call or no message36
Calls pretending to be government, businesses, or family and friends23
Before you call back
  • If you do not know anyone in South Dakota, do not call back: a genuine caller will leave a message or send a text.
  • Scammers fake the number shown on caller ID, so a 605 number can hide a caller anywhere in the world.
  • Never give a code received by text or a bank detail to an unknown caller. In the US, calls can be reported at reportfraud.ftc.gov.

Who issues +1 605 numbers

Phone companies hold blocks of numbers in each area code. The main holders in 605:

Qwest Corporation 104Cellco Partnership Dba Verizon Wireless 100New Cingular Wireless PCS, LLC 81Midcontinent Communications. 34Clarity Telecom, LLC Dba Bluepeak 33Venture Communications Cooperative 30

About 24.5% of the 759 prefixes in use belong to mobile carriers: a 605 number is often a cell phone, and it may have moved to another carrier since.

Sources: FTC Do Not Call reported calls (numbers as reported by consumers, not verified), NANPA central office code assignments.

All US area codes United States +1 Map of area code 605 — cities & rate centres