Williston, North Dakota, is served by area code 701. Whether you are calling a Williston number, verifying an unknown caller, or setting up a new local line, this guide covers every area code that serves the city, how local dialing works, the ZIP codes involved, and the scam-call patterns residents report most often.
Williston Area Codes at a Glance
| Detail | Information |
|---|---|
| Primary Area Code | 701 |
| Overlay Code | None currently active |
| Time Zone | Central Time (CT, UTC-6 / UTC-5) |
| Major Counties | Williams County |
| State | North Dakota |
Area Code Breakdown & Neighborhood Mapping
Williston sits in the Bakken oil region of northwestern North Dakota, which is served entirely by area code 701. A single area code has covered this area without needing a split or overlay, so a 701 number reads clearly as a local line.
Within the city, 701 covers downtown, the oil-boom residential developments, and the surrounding energy-industry and agricultural neighborhoods. Nearby communities in the same region include Dickinson.
Across North Dakota, 701 connects to the rest of the state through standard long-distance dialing, and every call to or from Williston follows the same North American Numbering Plan rules used nationwide. Knowing which code covers the city helps you spot out-of-area numbers at a glance and recognize when an incoming call may not be as local as it appears.
Local Dialing Rules & International Calling
Like the rest of the United States, Williston uses 10-digit dialing. Dial the area code plus the seven-digit number for local calls. For domestic long distance, add a leading 1 (1 + 701 + number). To call Williston from another country, dial your country’s exit code, then the U.S. country code +1, then the area code and the local number. Mobile users can enter +1 701 directly. Three-digit services such as 911 for emergencies and 988 for the Suicide and Crisis Lifeline are always dialed directly, with no area code required.
Major ZIP Codes in Williston
Williston’s primary ZIP code is 58801, which covers the city and much of the surrounding Williams County oil region.
Cell Phones & Number Portability
Thanks to federal number portability, a 701 number no longer proves the caller is currently in Williston. Residents who move away often keep their mobile numbers, and newcomers frequently arrive with codes from other states. New local service is typically assigned a 701 number, but the reliable habit is to dial all ten digits every time and to judge callers by who they are rather than by the area code they display.
Spam & Scam Call Warnings in Williston
Williston residents report the same robocall trends seen across North Dakota. Watch for these patterns:
- Neighbor spoofing: Scam calls that fake a 701 prefix so the number looks local. Screen unfamiliar callers even when the area code matches.
- Utility shutoff threats: Callers posing as the power or water company demanding immediate payment by gift card or wire. Real utilities never work this way.
- Government impersonation: Fake IRS, Social Security, or county “warrant” calls pressuring you to pay to avoid arrest.
- Local angle: In this Bakken oil-boom city, watch for fake oilfield job-offer and rental-housing scams that request personal information or upfront fees before a promised position or lease.
- Auto-warranty and Medicare pitches: High-volume robocalls seeking personal, financial, or insurance details, often using a recorded voice and a callback number.
Let unknown calls go to voicemail, never share financial information with an inbound caller, and report unwanted calls to the FTC at reportfraud.ftc.gov.
Frequently Asked Questions
What area code does Williston use?
Williston uses area code 701.
Do I have to dial the area code for local calls?
Yes. Williston uses 10-digit dialing, so include the area code even for calls within the city.
What county is Williston in?
Williston is located in Williams County.
What time zone is Williston in?
Williston observes Central Time (CT, UTC-6 / UTC-5).
How do I call Williston from another country?
Dial your exit code, then +1, then 701 and the seven-digit local number.
Does the area code affect the cost of a call?
No. Call costs depend on your calling plan, not on the 701 area code. Most U.S. mobile and landline plans include nationwide calling, so reaching a Williston number is treated the same as any other domestic call.
Can I keep my phone number if I move to Williston?
Usually yes. Federal number portability lets you keep an existing mobile number when you relocate, which is why many Williston residents carry numbers with area codes from other cities or states.
Stay Safe & Explore More
- Verify an unknown caller in our Scam Alerts directory.
- Comparing nationwide numbers? See our Toll-Free Numbers guides.