A local number. A little more freedom.
Get a 605
phone number.
A local number for Sioux Falls, SD. Call and text over WiFi or mobile data, on the phone you already have.
- Calls and texts
- No extra SIM
- Location
- Sioux Falls, South Dakota
- Time zone
- Central & Mountain
Where is area code 605 located?
Area code 605 is a South Dakota area code, serving Sioux Falls, SD and nearby cities including Rapid City, Aberdeen, Watertown. It is in the Central & Mountain time zone.
Who is calling from area code 605?
A 605 call comes from a number assigned to the Sioux Falls, SD area, which can be a mobile, a landline or an app-based number like AvoCall's. Caller ID can be faked from any area code, so if you don't know the number, let it go to voicemail and never share a code you didn't ask for.
How do I get a 605 phone number?
Pick an available 605 number and sign up for AvoCall. Your new Sioux Falls, SD number works for calls and texts on your existing phone over WiFi or data. No second SIM is needed. Right now 20 numbers in the 605 area code are available on this page (checked October 11, 2026 at 8:41 AM UTC).
Find one that feels like yours
Choose a 605 number
20 numbers listed · Checked October 11, 2026 at 8:41 AM UTC.
- (605) 824-9626Aberdeen, SD
- (605) 549-8115Spearfish, SD
- (605) 847-2805Lake Preston, SD
- (605) 315-4688Arlington, SD
- (605) 210-9373Belle Fourche, SD
- (605) 581-0005Mobridge, SD
- (605) 824-9579Aberdeen, SD
- (605) 646-9585Rapid City, SD
- (605) 815-0394Chamberlain, SD
- (605) 204-4478Miller, SD
- (605) 204-1860Miller, SD
- (605) 340-6533Spearfish, SD
- (605) 401-5143Sioux Falls, SD
- (605) 340-6183Spearfish, SD
- (605) 646-9620Rapid City, SD
- (605) 405-0714Arlington, SD
- (605) 570-3227Huron, SD
- (605) 741-8031Vermillion, SD
- (605) 836-4011Canton, SD
- (605) 502-0113Pierre, SD
Every number requires an AvoCall plan. Current web pricing is verified at checkout, and number availability changes often.
About the 605 area code
The Sioux Falls area heads a South Dakota territory assigned to area code 605, which also includes Rapid City, Aberdeen, Watertown, and Brookings. Coverage spans both Central and Mountain time.
605 has been in service since 1947 and was among the first area codes ever assigned. It has never been split and carries no overlay, leaving one code in charge of the entire coverage area.
Dialing note: 605 has been in service since 1947, making it one of the original North American area codes.
Numbering details on this page (service dates and overlay status) are checked against the NANPA numbering registry. Registry data as of 10/08/2026.
605 phone number FAQ
- Can I receive verification codes on a 605 number?
- AvoCall 605 numbers support calling and messaging. Verification-text compatibility varies by sender; short-code and 2FA delivery is not guaranteed.
- Which 605 numbers are available right now?
- As of October 11, 2026 at 8:41 AM UTC, 20 605 numbers were available to claim on this page. Inventory is re-checked hourly and changes as numbers are claimed, and availability is confirmed at checkout. See the current list.