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231 Area Code - Location, Time Zone. Toll Free? Scam? Who's Calling?

State Michigan
Timezone Eastern
Is Area Code 231 Toll Free? No
Major Cities Muskegon, Traverse City, Big Rapids, Cadillac, Ludington, Manistee, Petoskey, Cheboygan, Fremont, Boyne City

In a daily basis, we often received unexpected calls from unfamiliar numbers. These makes us wonder especially when we do not recognize the number flashing on our screen. We might even search the web to know where or what country does it coming from? Worry no more, for we addressed these concerns below.

What is area code 231 and where is it coming from?

Area code 231 is the telephone area code registered in North American Numbering plan for the U.S. state of Michigan. It is the only area code serving the state of Michigan. It serves the Lower Peninsula particularly the northwestern portion. Area code 231 was created in 1999 from a split of area code 616. Generally, area code 231 includes half of the western territory generally defined as Northern Michigan.

Some of the major cities or places in Michigan that area code 231 is serving include the larger cities of Muskegon, Traverse City, Big Rapids, Cadillac, Ludington, Manistee, Petoskey, Cheboygan, Fremont, Boyne City and other smaller cities and communities throughout Northern Michigan.

Is area code 231 a scam?

Area code 231 is a telephone area code that is duly registered in North America. Though it is duly registered, area code 231 is still susceptible for scammers. There are many types of phone scams nowadays so better be careful in dealing with it. Some caller may claim they're from a customer service team or someone from a bank or someone like investor. They will try to extract your personal information that might compromise your privacy. Anyone like them that keeps on bugging and sounds sketchy, better block the number immediately.

How do I block calls originating from area code 231?

Here are some guide on how to block unwanted calls:


  • Open recent call logs
  • Click the encircled "i" after the number
  • Tap on "block this caller"


  • Go to your recent call logs
  • Tap on "details"
  • Tap on "block number"

Is area code 231 toll free?

No. The 231 area code does not belong to the toll free numbers. Any calls performed with area code 231 may perform charge per minute or per subscription plan. Charges may depend with the calls performed locally or internationally. Internal calls usually cost more than local calls. You may contact your telecommunications provider for more information regarding this matter.

In conclusion

Whenever you received calls carrying area code 231, you should know that it comes from the state of Michigan. Be mindful in taking calls so you will not become a victim of scams. If ever you find the call suspicious, do not hesitate to drop the call and block the number. Just follow the guide above on how to block certain numbers.



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