Area Code 605

FTC complaints involving 605 numbers

Numbers shown with area code 605 in the FTC's Do Not Call “Reported Calls” database (recent reporting window). Most common reported reasons: “Other”, “Reducing your debt (credit cards, mortgage, student loans)”, “Calls pretending to be government, businesses, or family and friends”.

Most-complained 605 numbers:

• (605) 291-1907 — 9 complaints
• (605) 705-3127 — 5 complaints
• (605) 909-0729 — 5 complaints
• (605) 864-4683 — 5 complaints
• (605) 569-5681 — 4 complaints

These are FTC Do Not Call complaints filed about specific numbers shown with this area code — frequently spoofed. The area code itself is not a scam. See the most-reported area codes and the most-reported phone numbers nationwide.

Frequently asked questions

Where is area code 605?

Area code 605 covers Sioux Falls and nearby cities including Rapid City, Aberdeen, Pierre in South Dakota, in the Central & Mountain Time.

What cities use area code 605?

Area code 605 serves Sioux Falls, Rapid City, Aberdeen, Pierre, Watertown in South Dakota.

What time zone is area code 605 in?

Area code 605 is in the Central & Mountain Time (America/Chicago).

How do you dial a 605 number?

Dial all 10 digits: 605 followed by the 7-digit local number. From abroad, dial +1 605 and the local number.

Is a call from area code 605 a scam?

A 605 number is geographically tied to South Dakota, but caller ID can be spoofed, so the displayed area code does not prove where a caller really is. If you did not expect the call, do not share personal information and consider looking the number up.

Is 605 a country code?

No. 605 is a US area code (a domestic 3-digit code), not a country code. The country (calling) code for the United States is +1, shared across the North American Numbering Plan. So a full 605 number written for international dialing looks like +1 605 followed by the 7-digit local number.