Area Code 231 Phone Number
for Your Business
Get a local 231 number for your business in Traverse City, MI. Cloud VoIP with SMS, an auto attendant (IVR), and more — starting at $30/ext/mo. No contracts.
What Is Area Code 231?
Area code 231 is a North American telephone area code serving Traverse City, Michigan. It has been in service since June 5, 1999 and operates on Eastern Time. Businesses operating in the 231 area code region use local numbers to build trust with customers, improve answer rates, and establish a professional local presence.
With Zonitel, you can get a new 231 area code number or port your existing one with guided onboarding — no hardware required. Your team can make and receive calls from any device using the Zonitel mobile app or web portal.
Area Code 231 at a Glance
- Region
- Traverse City / Northwest MI, Michigan
- In service
- Since June 5, 1999
- Time zone
- Eastern Time
- Overlay
- None — the only area code for its territory
- History
- Created on June 5, 1999 from area code 616
- Telemarketing hours
- 8 a.m.–9 p.m. Eastern Time for residential numbers (TCPA, 47 CFR 64.1200(c)(1))
Why Your Business Needs a 231 Local Number
A local number tells customers you're part of the community. People in Traverse City are more likely to pick up a call from a 231 number they recognize than from an unfamiliar out-of-area number.
Everything Included With Your 231 Number
Zonitel is not just a phone number — it's a complete cloud business phone system. Every plan includes:
Frequently Asked Questions About Area Code 231
What cities use area code 231?
Area code 231 serves the Traverse City / Northwest MI area of Michigan. Cities in the 231 region include Traverse City, MI.
Is area code 231 an overlay?
No. 231 is not part of an overlay; it is the only area code serving its territory.
What time zone is area code 231 in?
Area code 231 is in Eastern Time. Telemarketing calls to residential 231 numbers are limited to 8 a.m.–9 p.m. Eastern Time under the TCPA (47 CFR 64.1200(c)(1)).
Can I get a 231 number for my business without moving there?
Yes. With Zonitel's cloud VoIP, you can get a 231 area code number regardless of where your business is physically located. This lets you establish a local presence in Traverse City without a physical office.
Can I keep my existing 231 number and switch to Zonitel?
Yes. Number porting is free. Porting commonly takes 5–10 business days depending on your current carrier, and your old service stays active until the coordinated cutover.
How much does a 231 business phone number cost?
Zonitel plans start at $30/extension/month plus tax, with no setup fees and no contracts. Your 231 local number is included in the plan.
Get Your 231 Area Code Number Today
30-day free trial. No annual contract required. Guided onboarding.