Watertown, South Dakota Phone Lookup

Q: How do I look up a phone number in Watertown, South Dakota?

Enter the full 10-digit number into the search box and click Search. 411FCC returns the owner's name, location, carrier, and line type. The lookup covers all 1 area code serving Watertown.

Q: What types of phone numbers are in Watertown?

Watertown has both wireless and landline numbers. Approximately 41% of prefixes are wireless, with 59% being landline or VoIP. 411FCC results identify the line type and carrier for any number searched.

Find the owner of any phone number in Watertown, South Dakota.

What Phone Numbers Are in Watertown, South Dakota?

Looking up a phone number in Watertown, South Dakota? Enter any 10-digit phone number in the search box above to find the owner's name, address, and carrier information. Watertown is served by 1 area code and has 17 active phone prefixes.

1 Area Code

17 Phone Prefixes

41% Wireless

59% Landline

Area Codes Serving Watertown

Phone numbers in Watertown, South Dakota use the following area code: 605.

Top Phone Carriers in Watertown

The most common phone service providers in Watertown include:

New Cingular Wireless Pcs, Llc - Il
Onvoy, Llc - Sd
Bandwidth.com Clec, Llc - Sd
Cellco Partnership Dba Verizon Wireless - Sd
Aerial Communications, Inc.

Data current as of March 2026

Nearby Cities in South Dakota

Other cities in South Dakota that share area codes with Watertown:

Watertown at a Glance

23,044 Population

39.5 Median Age

$69,600 Median Income

11,110 Housing Units

65% Homeownership

Demographics

White 90.1%
Black 1.3%
Hispanic 2.9%
Asian 0.7%
Other 5%

Financial Profile

$82,759 Avg. Income per Return

$48,574 Avg. Wages per Return

13,080 Tax Returns Filed

1 ZIP Codes

Frequently Asked Questions

What Area Codes Serve Watertown, South Dakota?

Phone numbers in Watertown, South Dakota use 1 area code: 605. These area codes are shared with other cities in the region. Watertown has 17 active phone prefixes assigned to local carriers. If you received a call from one of these area codes, enter the full 10-digit number into the search box above to find out who called. The area code alone tells you the general geographic region, but a full reverse phone lookup on 411FCC reveals the specific owner, carrier, and line type associated with the number.

How Do I Look Up a Phone Number in Watertown, South Dakota?

To look up any phone number in Watertown, enter the full 10-digit number into the search box at the top of this page and click Search. 411FCC returns available information about the number including the registered owner's name, location, phone carrier, and whether it is a wireless cell phone, landline, or VoIP line. The lookup covers all 1 area code serving Watertown and works for numbers from every carrier in the area. Results appear within seconds. 411FCC has maintained its phone number database since 2003.

What Types of Phone Numbers Are in Watertown?

Watertown, South Dakota has both wireless and landline phone numbers. Approximately 41% of phone prefixes in the area are classified as wireless (cell phone), with the remaining 59% being landline or VoIP. Major carriers serving the area include New Cingular Wireless Pcs, Llc - Il, Onvoy, Llc - Sd, Bandwidth.com Clec, Llc - Sd. When you search a phone number on 411FCC, the results identify the line type and carrier, which helps distinguish personal cell phones from business landlines and identify VoIP numbers commonly used by automated calling systems.