To faciltiate users, the United States of America is divided into regions known as Area Codes, corresponding to particular geographic telephone dialing areas.
An area code denotes the regional location of a phone number within the United States.
The Area Code table below shows an area codes each.
Area Code 231 listing, by city
@The cities listed with each area code are the major cities for that area code;
| City / State | Area code | Zip Code | County | Iso | |
|---|---|---|---|---|---|
| Acme (Michigan) | 231 | 49610 | Grand Traverse | US-MI | |
| Afton (Michigan) | 231 | 49705 | Cheboygan | US-MI | |
| Alanson (Michigan) | 231 | 49706 | Emmet | US-MI | |
| Alba (Michigan) | 231 | 49611 | Antrim | US-MI | |
| Alden (Michigan) | 231 | 49612 | Antrim | US-MI | |
| Arcadia (Michigan) | 231 | 49613 | Manistee | US-MI | |
| Bailey (Michigan) | 231 | 49303 | Muskegon | US-MI | |
| Baldwin (Michigan) | 231 | 49304 | Lake | US-MI | |
| Bay Shore (Michigan) | 231 | 49711 | Charlevoix | US-MI | |
| Bear Lake (Michigan) | 231 | 49614 | Manistee | US-MI | |
| Bellaire (Michigan) | 231 | 49615 | Antrim | US-MI | |
| Benzonia (Michigan) | 231 | 49616 | Benzie | US-MI | |
| Beulah (Michigan) | 231 | 49617 | Benzie | US-MI | |
| Big Rapids (Michigan) | 231 | 49307 | Mecosta | US-MI | |
| Bitely (Michigan) | 231 | 49309 | Newaygo | US-MI | |
| Boon (Michigan) | 231 | 49618 | Wexford | US-MI | |
| Boyne City (Michigan) | 231 | 49712 | Charlevoix | US-MI | |
| Boyne Falls (Michigan) | 231 | 49713 | Charlevoix | US-MI | |
| Branch (Michigan) | 231 | 49402 | Mason | US-MI | |
| Brethren (Michigan) | 231 | 49619 | Manistee | US-MI | |
| Brohman (Michigan) | 231 | 49312 | Newaygo | US-MI | |
| Brutus (Michigan) | 231 | 49716 | Emmet | US-MI | |
| Buckley (Michigan) | 231 | 49620 | Wexford | US-MI | |
| Burt Lake (Michigan) | 231 | 49717 | Cheboygan | US-MI | |
| Cadillac (Michigan) | 231 | 49601 | Wexford | US-MI | |
| Cedar (Michigan) | 231 | 49621 | Leelanau | US-MI | |
| Central Lake (Michigan) | 231 | 49622 | Antrim | US-MI | |
| Charlevoix (Michigan) | 231 | 49720 | Charlevoix | US-MI | |
| Chase (Michigan) | 231 | 49623 | Lake | US-MI | |
| Chippewa Lake (Michigan) | 231 | 49320 | Mecosta | US-MI | |
| Conway (Michigan) | 231 | 49722 | Emmet | US-MI | |
| Copemish (Michigan) | 231 | 49625 | Manistee | US-MI | |
| Coral (Michigan) | 231 | 49322 | Montcalm | US-MI | |
| Cross Village (Michigan) | 231 | 49723 | Emmet | US-MI | |
| Custer (Michigan) | 231 | 49405 | Mason | US-MI | |
| East Jordan (Michigan) | 231 | 49727 | Charlevoix | US-MI | |
| Eastlake (Michigan) | 231 | 49626 | Manistee | US-MI | |
| Eastport (Michigan) | 231 | 49627 | Antrim | US-MI | |
| Elberta (Michigan) | 231 | 49628 | Benzie | US-MI | |
| Elk Rapids (Michigan) | 231 | 49629 | Antrim | US-MI | |
| Ellsworth (Michigan) | 231 | 49729 | Antrim | US-MI | |
| Elmira (Michigan) | 231 | 49730 | Antrim | US-MI | |
| Empire (Michigan) | 231 | 49630 | Leelanau | US-MI | |
| Evart (Michigan) | 231 | 49631 | Osceola | US-MI | |
| Falmouth (Michigan) | 231 | 49632 | Missaukee | US-MI | |
| Fife Lake (Michigan) | 231 | 49633 | Kalkaska | US-MI | |
| Filer City (Michigan) | 231 | 49634 | Manistee | US-MI | |
| Fountain (Michigan) | 231 | 49410 | Mason | US-MI | |
| Frankfort (Michigan) | 231 | 49635 | Benzie | US-MI | |
| Free Soil (Michigan) | 231 | 49411 | Mason | US-MI | |
| Fremont (Michigan) | 231 | 49412 | Newaygo | US-MI | |
| Fremont (Michigan) | 231 | 49413 | Newaygo | US-MI | |
| Fruitport (Michigan) | 231 | 49415 | Muskegon | US-MI | |
| Glen Arbor (Michigan) | 231 | 49636 | Leelanau | US-MI | |
| Good Hart (Michigan) | 231 | 49737 | Emmet | US-MI | |
| Grant (Michigan) | 231 | 49327 | Newaygo | US-MI | |
| Grawn (Michigan) | 231 | 49637 | Grand Traverse | US-MI | |
| Harbor Springs (Michigan) | 231 | 49740 | Emmet | US-MI | |
| Harrietta (Michigan) | 231 | 49638 | Wexford | US-MI | |
| Hart (Michigan) | 231 | 49420 | Oceana | US-MI | |
| Hersey (Michigan) | 231 | 49639 | Osceola | US-MI | |
| Hesperia (Michigan) | 231 | 49421 | Oceana | US-MI | |
| Holton (Michigan) | 231 | 49425 | Muskegon | US-MI | |
| Honor (Michigan) | 231 | 49640 | Benzie | US-MI | |
| Howard City (Michigan) | 231 | 49329 | Montcalm | US-MI | |
| Idlewild (Michigan) | 231 | 49642 | Lake | US-MI | |
| Indian River (Michigan) | 231 | 49749 | Cheboygan | US-MI | |
| Interlochen (Michigan) | 231 | 49643 | Grand Traverse | US-MI | |
| Irons (Michigan) | 231 | 49644 | Lake | US-MI | |
| Kaleva (Michigan) | 231 | 49645 | Manistee | US-MI | |
| Kewadin (Michigan) | 231 | 49648 | Antrim | US-MI | |
| Kingsley (Michigan) | 231 | 49649 | Grand Traverse | US-MI | |
| Lake Ann (Michigan) | 231 | 49650 | Benzie | US-MI | |
| Lake City (Michigan) | 231 | 49651 | Missaukee | US-MI | |
| Lake Leelanau (Michigan) | 231 | 49653 | Leelanau | US-MI | |
| Leland (Michigan) | 231 | 49654 | Leelanau | US-MI | |
| Leroy (Michigan) | 231 | 49655 | Osceola | US-MI | |
| Levering (Michigan) | 231 | 49755 | Emmet | US-MI | |
| Ludington (Michigan) | 231 | 49431 | Mason | US-MI | |
| Luther (Michigan) | 231 | 49656 | Lake | US-MI | |
| Mancelona (Michigan) | 231 | 49659 | Antrim | US-MI | |
| Manistee (Michigan) | 231 | 49660 | Manistee | US-MI | |
| Manton (Michigan) | 231 | 49663 | Wexford | US-MI | |
| Maple City (Michigan) | 231 | 49664 | Leelanau | US-MI | |
| Marion (Michigan) | 231 | 49665 | Osceola | US-MI | |
| Mayfield (Michigan) | 231 | 49666 | Grand Traverse | US-MI | |
| Mc Bain (Michigan) | 231 | 49657 | Missaukee | US-MI | |
| Mears (Michigan) | 231 | 49436 | Oceana | US-MI | |
| Mecosta (Michigan) | 231 | 49332 | Mecosta | US-MI | |
| Merritt (Michigan) | 231 | 49667 | Missaukee | US-MI | |
| Mesick (Michigan) | 231 | 49668 | Wexford | US-MI | |
| Montague (Michigan) | 231 | 49437 | Muskegon | US-MI | |
| Morley (Michigan) | 231 | 49336 | Mecosta | US-MI | |
| Mullett Lake (Michigan) | 231 | 49761 | Cheboygan | US-MI | |
| Muskegon (Michigan) | 231 | 49440 | Muskegon | US-MI | |
| Muskegon (Michigan) | 231 | 49441 | Muskegon | US-MI | |
| Muskegon (Michigan) | 231 | 49442 | Muskegon | US-MI | |
| Muskegon (Michigan) | 231 | 49443 | Muskegon | US-MI | |
| Muskegon (Michigan) | 231 | 49444 | Muskegon | US-MI | |
| Muskegon (Michigan) | 231 | 49445 | Muskegon | US-MI | |
| New Era (Michigan) | 231 | 49446 | Oceana | US-MI | |
| Newaygo (Michigan) | 231 | 49337 | Newaygo | US-MI | |
| Northport (Michigan) | 231 | 49670 | Leelanau | US-MI | |
| Oden (Michigan) | 231 | 49764 | Emmet | US-MI | |
| Old Mission (Michigan) | 231 | 49673 | Grand Traverse | US-MI | |
| Omena (Michigan) | 231 | 49674 | Leelanau | US-MI | |
| Onekama (Michigan) | 231 | 49675 | Manistee | US-MI | |
| Paris (Michigan) | 231 | 49338 | Mecosta | US-MI | |
| Pellston (Michigan) | 231 | 49769 | Emmet | US-MI | |
| Pentwater (Michigan) | 231 | 49449 | Oceana | US-MI | |
| Petoskey (Michigan) | 231 | 49770 | Emmet | US-MI | |
| Pointe Aux Pins (Michigan) | 231 | 49775 | Mackinac | US-MI | |
| Rapid City (Michigan) | 231 | 49676 | Kalkaska | US-MI | |
| Ravenna (Michigan) | 231 | 49451 | Muskegon | US-MI | |
| Reed City (Michigan) | 231 | 49677 | Osceola | US-MI | |
| Rodney (Michigan) | 231 | 49342 | Mecosta | US-MI | |
| Rothbury (Michigan) | 231 | 49452 | Oceana | US-MI | |
| Scottville (Michigan) | 231 | 49454 | Mason | US-MI | |
| Shelby (Michigan) | 231 | 49455 | Oceana | US-MI | |
| South Boardman (Michigan) | 231 | 49680 | Kalkaska | US-MI | |
| Stanwood (Michigan) | 231 | 49346 | Mecosta | US-MI | |
| Suttons Bay (Michigan) | 231 | 49682 | Leelanau | US-MI | |
| Sylvan Beach (Michigan) | 231 | 49463 | Muskegon | US-MI | |
| Thompsonville (Michigan) | 231 | 49683 | Benzie | US-MI | |
| Topinabee (Michigan) | 231 | 49791 | Cheboygan | US-MI | |
| Traverse City (Michigan) | 231 | 49684 | Grand Traverse | US-MI | |
| Traverse City (Michigan) | 231 | 49685 | Grand Traverse | US-MI | |
| Traverse City (Michigan) | 231 | 49686 | Grand Traverse | US-MI | |
| Traverse City (Michigan) | 231 | 49696 | Grand Traverse | US-MI | |
| Tustin (Michigan) | 231 | 49688 | Osceola | US-MI | |
| Twin Lake (Michigan) | 231 | 49457 | Muskegon | US-MI | |
| Walhalla (Michigan) | 231 | 49458 | Mason | US-MI | |
| Walkerville (Michigan) | 231 | 49459 | Oceana | US-MI | |
| Walloon Lake (Michigan) | 231 | 49796 | Charlevoix | US-MI | |
| Wellston (Michigan) | 231 | 49689 | Manistee | US-MI | |
| White Cloud (Michigan) | 231 | 49349 | Newaygo | US-MI | |
| Whitehall (Michigan) | 231 | 49461 | Muskegon | US-MI | |
| Williamsburg (Michigan) | 231 | 49690 | Grand Traverse | US-MI | |
| Wolverine (Michigan) | 231 | 49799 | Cheboygan | US-MI |