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231 Area Code

Area code 231 is in Michigan (MI), USA and some of the main locations it covers are Muskegon, Traverse City, Cadillac, etc. (jump to city list below).

In service date for area code 231: June 05, 1999.

The current time for places served by area code 231 is 06:19:07 PM (Eastern Time Zone).

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Map of area code 231

More Michigan area codes

231 phone number location

NPANXX Area served1 Date2
231-201 Chippewa Lake 3/5/2004
231-202 Mecosta 3/5/2004
231-203 Alanson 3/19/2004
231-204 Fife Lake N/A
231-205 Brutus 3/24/2004
231-206 Muskegon N/A
231-207 Honor 3/24/2004
231-208 Boyne Falls 3/24/2004
231-209 Suttons Bay 3/25/2004
231-212 Interlochen 7/25/2016
231-213 Traverse City 3/26/2015
231-214 Le Roy N/A
231-215 Muskegon N/A
231-216 Frankfort 12/2015
231-217 Bear Lake 3/24/2004
231-218 Traverse City N/A
231-219 Merritt 3/24/2004
231-220 Muskegon 3/25/2003
231-221 Harbor Springs 6/2015
231-222 East Jordan 4/4/2002
231-223 Old Mission N/A
231-224 Fremont N/A
231-225 Fremont 4/4/2002
231-226 Glen Lake 3/24/2004
231-227 Honor 9/26/2012
231-228 Glen Lake N/A
231-229 Moorestown N/A
231-230 Elmira 3/24/2004
231-232 Moorestown 3/24/2004
231-233 Ludington 8/30/2004
231-234 Buckley 12/7/2015
231-235 Levering 3/24/2004
231-236 Lake City 3/24/2004
231-237 Charlevoix N/A
231-238 Indian River N/A
231-239 Ludington 4/28/2004
231-240 Lake Ann 3/24/2004
231-241 Pentwater 10/10/2006
231-242 Harbor Springs N/A
231-243 Alanson 3/24/2004
231-244 Boyne City 8/26/2015
231-245 Newaygo 7/17/2009
231-246 Muskegon 12/22/2015
231-247 Williamsburg 9/28/2018
231-249 Cheboygan N/A
231-250 Big Rapids N/A
231-251 Lake Leelanau 12/2015
231-252 Traverse City 4/18/2016
231-253 Cadillac 11/8/2018
231-254 Petoskey 10/24/2019
231-255 Onekama N/A
231-256 Lake Leelanau N/A
231-257 Lake City 2/27/2019
231-258 Kalkaska N/A
231-259 Shelby 2/7/2007
231-260 Muskegon 3/3/2017
231-261 Ludington 12/31/2018
231-262 Elmira 1/21/2005
231-263 Kingsley N/A
231-264 Elk Rapids N/A
231-265 Coral 5/19/2014
231-266 Irons N/A
231-267 Williamsburg N/A
231-268 Cheboygan 7/12/2004
231-269 Buckley N/A
231-270 Boyne City 5/21/2021
231-271 Suttons Bay N/A
231-272 Kingsley 8/8/2019
231-273 Eastport 10/26/2020
231-274 Traverse City N/A
231-275 Lake Ann N/A
231-276 Interlochen N/A
231-277 Fountain 3/22/2016
231-278 Hesperia 10/26/2020
231-279 Big Rapids 12/20/2019
231-280 Mancelona 2/29/2016
231-281 Cadillac 11/3/2020
231-282 Grant N/A
231-283 Muskegon 11/9/2020
231-284 Manistee 3/2021
231-285 Cadillac 1/9/2020
231-286 Muskegon N/A
231-287 Big Rapids N/A
231-288 Muskegon 9/13/2005
231-289 Charlevoix 7/19/2018
231-290 Indian River N/A
231-291 Muskegon 5/11/2012
231-292 Whitehall 7/30/2010
231-293 Frankfort 5/14/2021
231-294 Fife Lake 6/15/2021
231-295 Lake City 9/26/2012
231-296 Fremont 5/13/2021
231-297 Kingsley 6/25/2021
231-298 Irons 5/13/2021
231-299 Manistee 12/28/2011

NPANXX Area served1 Date2
231-300 Alden 9/7/2017
231-301 Hart N/A
231-302 Petoskey N/A
231-303 Newaygo 5/16/2011
231-304 Brutus 10/26/2020
231-305 Big Rapids N/A
231-306 Cadillac N/A
231-307 Morley N/A
231-308 Charlevoix N/A
231-309 Manistee N/A
231-310 Falmouth 9/25/2018
231-312 Frankfort N/A
231-313 Traverse City N/A
231-314 Kalkaska N/A
231-315 Muskegon N/A
231-316 Ludington N/A
231-317 Boyne City N/A
231-318 Traverse City N/A
231-319 Mackinaw City N/A
231-320 Torch River Bridge 9/3/2021
231-321 Elmira 5/19/2021
231-322 Torch River Bridge N/A
231-323 East Jordan N/A
231-324 Harbor Springs 5/25/2021
231-325 Honor N/A
231-326 Glen Lake N/A
231-327 Muskegon N/A
231-328 Merritt N/A
231-329 Muskegon N/A
231-330 Petoskey 12/10/2002
231-331 Alden N/A
231-332 Muskegon N/A
231-333 Cheboygan 4/4/2002
231-334 Glen Lake N/A
231-335 Fremont N/A
231-336 Ludington N/A
231-337 Mcbain N/A
231-338 Baldwin N/A
231-339 Muskegon N/A
231-340 Elmira 7/9/2003
231-341 Cheboygan N/A
231-342 Traverse City N/A
231-343 Muskegon N/A
231-344 Petoskey N/A
231-345 Reed City N/A
231-346 Traverse City N/A
231-347 Petoskey N/A
231-348 Petoskey N/A
231-349 Big Rapids N/A
231-350 Bellaire 7/9/2003
231-351 Scottville N/A
231-352 Frankfort N/A
231-353 Mcbain N/A
231-354 Coral N/A
231-355 Fremont N/A
231-356 Mancelona N/A
231-357 Traverse City N/A
231-358 Central Lake N/A
231-359 Mecosta 9/26/2012
231-360 Traverse City 12/30/2002
231-361 Morley N/A
231-362 Kaleva N/A
231-363 Cheboygan N/A
231-364 Northport 6/15/2021
231-365 Wolverine N/A
231-366 Fruitport 2/27/2003
231-367 Wolverine 6/25/2021
231-368 Baldwin N/A
231-369 Soboardman N/A
231-370 Muskegon 9/3/2021
231-371 Tustin 9/3/2021
231-372 Evart N/A
231-373 Petoskey 4/27/2004
231-374 Shelby 6/15/2021
231-375 Muskegon N/A
231-376 Twin Lake 7/2021
231-377 Clam River N/A
231-378 Copemish Thompsonville N/A
231-379 Onekama 8/26/2021
231-380 Newaygo 1/10/2022
231-381 Whitecloud 5/13/2021
231-382 Cadillac N/A
231-383 Beulah 4/29/2003
231-384 Kalkaska 5/2003
231-385 Coral 7/20/2021
231-386 Northport N/A
231-387 Petoskey 10/6/2021
231-388 Le Roy 5/2003
231-389 Harrietta N/A
231-390 Big Rapids 10/26/2021
231-391 Glen Lake 7/2021
231-392 Traverse City 1/9/2001
231-393 Le Roy 7/2021
231-394 Moorestown 7/29/2003
231-395 Grant N/A
231-396 Cadillac 10/29/2021
231-397 Manistee 11/3/2021
231-398 Manistee N/A
231-399 Frankfort 1/19/2005

NPANXX Area served1 Date2
231-400 Alanson 10/10/2019
231-401 Traverse City 12/21/2021
231-402 Muskegon 1/21/2022
231-403 Williamsburg 8/16/2011
231-404 Stanwood 10/5/2004
231-405 Alden 2/4/2022
231-406 Falmouth 2/4/2022
231-407 Mecosta 2/4/2022
231-408 Big Rapids N/A
231-409 Traverse City N/A
231-410 Manistee 8/12/2022
231-412 Harbor Springs 10/11/2010
231-413 Kalkaska 2/14/2022
231-414 Newaygo N/A
231-415 Dublin 12/5/2022
231-416 Big Rapids N/A
231-417 Petoskey 01/06/2023
231-420 Cheboygan N/A
231-421 Traverse City 2/20/2002
231-422 Pellston 8/25/2015
231-423 Evart N/A
231-424 Carr 1/27/2005
231-425 Ludington N/A
231-427 Mackinaw City 8/17/2011
231-429 Cadillac 12/5/2002
231-431 Clam River 5/19/2021
231-432 Northport 8/30/2002
231-433 Moorestown 4/29/2011
231-434 Manton 9/26/2014
231-436 Mackinaw City N/A
231-437 Charlevoix N/A
231-439 Petoskey N/A
231-440 Baldwin 8/27/2002
231-441 Fife Lake 8/27/2002
231-442 Harrietta 12/2015
231-443 Honor 1/8/2021
231-444 Cadillac 8/24/2015
231-445 Cheboygan 8/24/2004
231-447 Holton 12/2015
231-448 St James N/A
231-449 Baldwin 5/13/2021
231-450 Hesperia 1/19/2005
231-452 Newaygo 2/8/2001
231-454 Traverse City 9/23/2021
231-455 Pentwater 1/8/2021
231-457 Muskegon N/A
231-459 Boyne City 1/9/2004
231-460 Big Rapids N/A
231-462 Fountain N/A
231-463 Traverse City N/A
231-464 Freesoil N/A
231-465 Reed City N/A
231-466 Evart 7/2021
231-468 Cadillac 2/5/2001
231-475 Manton 7/2021
231-477 Brethren N/A
231-480 Ludington 5/23/2002
231-484 East Jordan 8/7/2013
231-486 Traverse City N/A
231-487 Petoskey N/A
231-488 Manistee 8/27/2002
231-489 Petoskey 4/21/2015
231-492 Traverse City N/A
231-493 Traverse City 5/17/2017
231-494 Big Rapids N/A
231-495 Bellaire 7/29/2016
231-497 Boyne City N/A
231-498 Elk Rapids 10/20/2004
231-499 Traverse City N/A

NPANXX Area served1 Date2
231-500 Whitehall 10/10/2019
231-508 Onekama 6/3/2008
231-510 Manistee N/A
231-512 Traverse City N/A
231-514 Cadillac N/A
231-515 Evart 1/19/2005
231-516 Petoskey N/A
231-518 Kalkaska 6/18/2001
231-519 Newaygo 7/19/2002
231-520 Charlevoix 8/27/2002
231-522 Luther N/A
231-525 Wolverine N/A
231-526 Harbor Springs N/A
231-527 Big Rapids N/A
231-529 Brutus N/A
231-531 Muskegon 4/9/2019
231-532 Kalkaska N/A
231-533 Bellaire N/A
231-534 Traverse City 10/30/2002
231-535 Walloon Lk N/A
231-536 East Jordan N/A
231-537 Levering N/A
231-538 Fremont 8/27/2002
231-539 Pellston N/A
231-543 Le Roy N/A
231-544 Central Lake N/A
231-545 Boyne Falls 9/23/2016
231-546 Elmira N/A
231-547 Charlevoix N/A
231-548 Alanson N/A
231-549 Boyne Falls N/A
231-550 Petoskey 9/22/2021
231-557 Muskegon N/A
231-559 Mcbain 8/2012
231-563 Muskegon 1/9/2001
231-564 Kalkaska N/A
231-566 Harrietta 2/22/2022
231-567 Muskegon 12/2020
231-568 Traverse City N/A
231-569 Petoskey N/A
231-570 Fife Lake 3/29/2002
231-571 Muskegon N/A
231-577 Cadillac 5/14/2002
231-578 Muskegon N/A
231-580 Big Rapids 2/5/2001
231-581 Alba 4/20/2017
231-582 Boyne City N/A
231-583 Ludington 8/27/2002
231-584 Alba N/A
231-585 Lake North N/A
231-587 Mancelona N/A
231-588 Ellsworth N/A
231-590 Traverse City N/A
231-591 Big Rapids N/A
231-592 Big Rapids N/A
231-593 Cadillac N/A
231-594 Hart 3/7/2001
231-596 Harbor Springs N/A
231-597 Cheboygan N/A
231-598 Big Rapids N/A
231-599 Eastport N/A

NPANXX Area served1 Date2
231-600 Traverse City 12/19/2019
231-604 Kalkaska N/A
231-605 Newaygo N/A
231-606 Big Rapids N/A
231-608 Frankfort N/A
231-613 Scottville N/A
231-614 Pentwater 10/12/2001
231-615 Cheboygan N/A
231-620 Traverse City N/A
231-622 Petoskey 8/19/2002
231-624 Kalkaska N/A
231-625 Cheboygan N/A
231-626 Levering 9/26/2012
231-627 Cheboygan N/A
231-628 Manistee N/A
231-629 Big Rapids N/A
231-631 Traverse City 8/31/2001
231-632 Traverse City N/A
231-633 Traverse City N/A
231-634 Bois Blanc N/A
231-635 Mackinaw City 8/27/2002
231-636 Howard City 8/12/2002
231-637 Northport 8/31/2001
231-638 Muskegon 3/9/2001
231-639 Beulah 8/27/2002
231-640 Lake Ann 8/30/2002
231-642 Traverse City 4/2001
231-643 Morley 8/27/2002
231-645 Traverse City N/A
231-646 Ellsworth 6/18/2001
231-647 Coral 8/27/2001
231-648 Howard City 1/9/2001
231-649 Traverse City 7/19/2002
231-651 Beulah 8/30/2002
231-652 Newaygo N/A
231-655 Manistee 12/19/2014
231-656 Kalkaska 8/27/2002
231-660 Big Rapids 8/27/2002
231-663 Mesick 3/7/2022
231-666 Muskegon 10/9/2017
231-667 Marion 8/30/2002
231-668 Traverse City 4/29/2002
231-670 Muskegon 2/21/2001
231-672 Muskegon 11/12/2001
231-674 Grant 5/18/2001
231-675 Boyne City 3/29/2002
231-676 Bellaire 8/30/2002
231-678 Brethren 1/19/2005
231-679 Big Rapids 10/24/2002
231-680 Reed City 8/19/2002
231-681 Fruitport 6/18/2001
231-682 Alden 4/22/2002
231-683 Muskegon 7/9/2001
231-685 Ravenna 9/25/2014
231-686 Frankfort 8/27/2002
231-688 Merritt 2/19/2020
231-689 Whitecloud N/A
231-690 Ludington 7/19/2002
231-694 Beulah N/A
231-695 Howard City 7/11/2001
231-698 Harrietta N/A
231-699 Fountain 2/22/2022
NPANXX Area served1 Date2
231-707 Newaygo 2/25/2016
231-709 Traverse City N/A
231-712 Muskegon N/A
231-714 Traverse City N/A
231-715 Traverse City N/A
231-719 Muskegon N/A
231-720 Muskegon N/A
231-721 Hart 8/27/2002
231-722 Muskegon N/A
231-723 Manistee N/A
231-724 Muskegon N/A
231-725 Muskegon N/A
231-726 Muskegon N/A
231-727 Muskegon N/A
231-728 Muskegon N/A
231-729 Irons 8/30/2002
231-730 Muskegon N/A
231-731 Shelby 10/12/2001
231-732 Morley N/A
231-733 Muskegon N/A
231-734 Evart N/A
231-735 Traverse City 6/18/2001
231-736 Muskegon N/A
231-737 Muskegon N/A
231-739 Muskegon N/A
231-740 Muskegon N/A
231-742 Hart N/A
231-743 Marion N/A
231-744 Muskegon N/A
231-745 Baldwin N/A
231-746 Cheboygan 2/18/2022
231-747 Muskegon N/A
231-750 Muskegon N/A
231-751 Walloon Lk 10/6/2014
231-753 Petoskey 6/18/2001
231-755 Muskegon N/A
231-757 Scottville N/A
231-758 Petoskey N/A
231-759 Muskegon N/A
231-760 Muskegon N/A
231-762 Amble N/A
231-763 Amble 4/19/2019
231-764 Fife Lake 8/31/2001
231-766 Muskegon N/A
231-767 Muskegon N/A
231-768 Le Roy N/A
231-769 Muskegon N/A
231-771 Elk Rapids 3/22/2016
231-772 Wellston 3/7/2022
231-773 Muskegon N/A
231-774 Interlochen 1/19/2005
231-775 Cadillac N/A
231-776 Petoskey 8/27/2002
231-777 Muskegon N/A
231-778 Traverse City 8/27/2002
231-779 Cadillac N/A
231-780 Muskegon N/A
231-782 Cheboygan 8/27/2002
231-786 Traverse City 3/24/2021
231-787 Whitecloud 11/7/2014
231-788 Muskegon N/A
231-790 Freesoil 6/18/2001
231-791 Reed City 5/18/2001
231-792 Mancelona 8/27/2002
231-793 Whitecloud 1/9/2001
231-794 Manistee 8/30/2002
231-796 Big Rapids N/A
231-797 Luther N/A
231-798 Muskegon N/A
231-799 Muskegon N/A
NPANXX Area served1 Date2
231-800 Luther 10/2017
231-803 Morley 5/18/2001
231-805 Kaleva 1/19/2005
231-806 Coral 8/27/2002
231-808 Central Lake 8/12/2002
231-813 Ludington 2/8/2001
231-818 Cheboygan N/A
231-819 Tustin 10/6/2014
231-821 Holton N/A
231-822 Beulah 8/27/2001
231-823 Stanwood N/A
231-824 Manton N/A
231-825 Mcbain N/A
231-826 Falmouth N/A
231-828 Twin Lake N/A
231-829 Tustin N/A
231-830 Muskegon N/A
231-831 East Jordan 5/21/2021
231-832 Reed City N/A
231-833 Wolverine 4/11/2005
231-834 Grant N/A
231-835 Glen Lake 8/30/2002
231-836 Evart 8/27/2002
231-837 Fremont N/A
231-838 Petoskey 3/29/2002
231-839 Lake City N/A
231-842 Cadillac 8/27/2002
231-843 Ludington N/A
231-844 Indian River 6/18/2001
231-845 Ludington N/A
231-846 Cadillac N/A
231-848 Wellston N/A
231-852 Ludington N/A
231-853 Ravenna N/A
231-854 Hesperia N/A
231-855 Muskegon N/A
231-856 Morley N/A
231-859 Dublin N/A
231-861 Shelby N/A
231-862 Hoxeyville N/A
231-864 Bear Lake N/A
231-865 Fruitport N/A
231-866 Suttons Bay 8/30/2002
231-867 Chippewa Lake N/A
231-869 Pentwater N/A
231-871 Beulah N/A
231-872 Reed City N/A
231-873 Hart N/A
231-874 Wolverine 8/27/2002
231-875 Fruitport 7/6/2001
231-876 Cadillac N/A
231-877 Northport N/A
231-878 Cadillac 7/19/2002
231-879 Fife Lake N/A
231-880 Muskegon 9/8/2021
231-881 Petoskey N/A
231-882 Beulah N/A
231-883 Traverse City N/A
231-884 Cadillac N/A
231-885 Mesick N/A
231-886 Kalkaska N/A
231-887 Manistee N/A
231-888 Twin Lake 6/16/2015
231-889 Onekama N/A
231-890 Traverse City N/A
231-893 Whitehall N/A
231-894 Whitehall N/A
231-898 Carr N/A
231-899 Northport 8/27/2002

NPANXX Area served1 Date2
231-900 Muskegon 5/13/2019
231-902 Hart 8/27/2001
231-903 Muskegon 4/29/2002
231-907 Ludington 9/3/2002
231-908 Mcbain 8/27/2002
231-912 Reed City 8/30/2002
231-916 Mancelona 6/18/2001
231-920 Cadillac N/A
231-922 Traverse City N/A
231-923 Hart 5/18/2001
231-924 Fremont N/A
231-925 Scottville 8/27/2002
231-928 Fremont N/A
231-929 Traverse City N/A
231-930 Beulah 6/18/2001
231-932 Traverse City N/A
231-933 Traverse City N/A
231-935 Traverse City N/A
231-936 Scottville 6/18/2001
231-937 Howard City N/A
231-938 Traverse City N/A
231-939 Petoskey 8/9/2017
231-941 Traverse City N/A
231-942 Cadillac 6/18/2001
231-943 Traverse City N/A
231-944 Traverse City N/A
231-946 Traverse City N/A
231-947 Traverse City N/A
231-955 Muskegon N/A
231-963 Mcbain 2/28/2022
231-966 Freesoil 2/22/2022
231-968 Cadillac 9/16/2021
231-970 Bear Lake 8/30/2002
231-972 Mecosta N/A
231-974 Grant 8/27/2002
231-977 Mackinaw City 2/19/2020
231-981 Whitehall N/A
231-994 Lake Leelanau 1/19/2005
231-995 Traverse City N/A
231-999 Central Lake 8/24/2015
  1. For 'Area served' we list the rate center. In the North American Numbering Plan a rate center is a geographic area used to determine local calling boundaries for billing purposes. Its name is generally a locality, often not the only one served by an NPA-NXX combination.
  2. Assignment date. N/A - mostly CO codes assigned before 2001.
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Cities in area code 231

City1 County Time2
Acme Grand Traverse E
Afton Cheboygan E
Alanson Emmet E
Alba Antrim E
Alden Antrim E
Arcadia Manistee E
Bailey Muskegon E
Baldwin Lake E
Bay Shore Charlevoix E
Bear Lake Manistee E
Beaver Island Charlevoix E
Bellaire Antrim E
Benzonia Benzie E
Beulah Benzie E
Big Rapids Mecosta E
Bitely Newaygo E
Boon Wexford E
Boyne City Charlevoix E
Boyne Falls Charlevoix E
Branch Mason E
Brethren Manistee E
Brohman Newaygo E
Brutus Emmet E
Buckley Wexford E
Burt Lake Cheboygan E
Cadillac Wexford E
Carp Lake Emmet E
Casnovia Muskegon E
Cedar Leelanau E
Central Lake Antrim E
Charlevoix Charlevoix E
Chase Lake E
Cheboygan Cheboygan E
Chippewa Lake Mecosta E
Conway Emmet E
Copemish Manistee E
Coral Montcalm E
Cross Village Emmet E
Custer Mason E
East Jordan Charlevoix E
Eastlake Manistee E
Eastport Antrim E
Elberta Benzie E
Elk Rapids Antrim E
Ellsworth Antrim E
Elmira Otsego E
Empire Leelanau E
Evart Osceola E
Falmouth Missaukee E
Fife Lake Kalkaska E
Filer City Manistee E
Fountain Mason E
Frankfort Benzie E
Free Soil Mason E
Fremont Newaygo E
Fruitport Muskegon E
Glen Arbor Leelanau E
Good Hart Emmet E
Gowen Kent E
Grant Newaygo E
Grawn Grand Traverse E
Greenville Montcalm E
Harbor Springs Emmet E
Harrietta Wexford E
Hart Oceana E
Hersey Osceola E
Hesperia Oceana E
Holton Muskegon E
Honor Benzie E
Howard City Montcalm E
Idlewild Lake E
Indian River Cheboygan E
Interlochen Grand Traverse E
Irons Lake E
Kaleva Manistee E
Kalkaska Kalkaska E
Kewadin Antrim E
Kingsley Grand Traverse E
Lake Ann Benzie E
Lake City Missaukee E
Lake Leelanau Leelanau E
Leland Leelanau E
Leroy Osceola E
Levering Emmet E
Ludington Mason E
Luther Lake E
Mackinaw City Cheboygan E
Mancelona Antrim E
Manistee Manistee E
Manton Wexford E
Maple City Leelanau E
Marion Osceola E
Mayfield Grand Traverse E
Mc Bain Missaukee E
Mears Oceana E
Mecosta Mecosta E
Merritt Missaukee E
Mesick Wexford E
Montague Muskegon E
Morley Mecosta E
Mullett Lake Cheboygan E
Muskegon Muskegon E
New Era Oceana E
Newaygo Newaygo E
Northport Leelanau E
Oden Emmet E
Old Mission Grand Traverse E
Omena Leelanau E
Onekama Manistee E
Paris Mecosta E
Pellston Emmet E
Pentwater Oceana E
Petoskey Emmet E
Pierson Montcalm E
Pointe Aux Pins Mackinac E
Rapid City Kalkaska E
Ravenna Muskegon E
Reed City Osceola E
Rodney Mecosta E
Rothbury Oceana E
Scottville Mason E
Sears Osceola E
Shelby Oceana E
South Boardman Kalkaska E
Stanwood Mecosta E
Suttons Bay Leelanau E
Sylvan Beach Muskegon E
Thompsonville Benzie E
Topinabee Cheboygan E
Traverse City Grand Traverse E
Trufant Montcalm E
Tustin Osceola E
Twin Lake Muskegon E
Walhalla Mason E
Walkerville Oceana E
Walloon Lake Charlevoix E
Wellston Manistee E
White Cloud Newaygo E
Whitehall Muskegon E
Williamsburg Grand Traverse E
Wolverine Cheboygan E
  1. Listed above are most places served by area code 231. When multiple places in a state/province share the same name we list the largest one only. Cities with population over 50,000 are displayed in bold text.
  2. E stands for Eastern Time Zone (currently 06:19:07 PM).
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