231 Area Code: Location, Cities, Map And Time Zone

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Area code 231 is in Michigan, USA , spanning 22 counties and serving 141 cities , including Muskegon, Traverse City or Cadillac; it currently uses 571 prefixes , assigned from 231-201-XXXX through 231-999-XXXX.

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

The current local time is .

231 area code location on a map
© OpenStreetMap contributorsFor exact NPA boundaries see official 231 area code map

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More Michigan area codes:

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Locate any 231-NXX prefix:

231-201-XXXX --- 231-299-XXXX
NPANXX Carrier1 Area Served2 Date3
231-201 New Cingular Wireless PCS Chippewa Lake 3/5/2004
231-202 New Cingular Wireless PCS Mecosta 3/5/2004
231-203 New Cingular Wireless PCS Alanson 3/19/2004
231-204 USA Mobility Wireless Fife Lake N/A
231-205 Interactive Services Network Brutus 3/24/2004
231-206 Omnipoint Communications Midwest Operations Muskegon N/A
231-207 Interactive Services Network Honor 3/24/2004
231-208 Interactive Services Network Boyne Falls 3/24/2004
231-209 Interactive Services Network Suttons Bay 3/25/2004
231-210 Onvoy St James 07/11/2023
231-212 Centurylink Communications Interlochen 7/25/2016
231-213 Michigan Bell Tel Co Traverse City 3/26/2015
231-214 Charter IP Enabled Services Lake North 03/12/2025
231-215 Cellco Partnership Muskegon N/A
231-216 Peerless Network Of Michigan Frankfort 12/1/2015
231-217 Interactive Services Network Bear Lake 3/24/2004
231-218 Omnipoint Communications Midwest Operations Traverse City N/A
231-219 Interactive Services Network Merritt 3/24/2004
231-220 123.net Muskegon 3/25/2003
231-221 Centurylink Communications Harbor Springs 6/1/2015
231-222 Level 3 Communications East Jordan 4/4/2002
231-223 Ace Tel. Co. Of Michigan Old Mission N/A
231-224 Bandwidth.com Clec Fremont N/A
231-225 Level 3 Communications Fremont 4/4/2002
231-226 Interactive Services Network Glen Lake 3/24/2004
231-227 Charter IP Enabled Services Honor 9/26/2012
231-228 Brightspeed Of Michigan Glen Lake N/A
231-229 Brightspeed Of Michigan Moorestown N/A
231-230 Interactive Services Network Elmira 3/24/2004
231-232 Interactive Services Network Moorestown 3/24/2004
231-233 Cellco Partnership Ludington 8/30/2004
231-234 Charter IP Enabled Services Buckley 12/7/2015
231-235 Interactive Services Network Levering 3/24/2004
231-236 Interactive Services Network Lake City 3/24/2004
231-237 Michigan Bell Tel Co Charlevoix N/A
231-238 Michigan Bell Tel Co Indian River N/A
231-239 Cellco Partnership Ludington 4/28/2004
231-240 Interactive Services Network Lake Ann 3/24/2004
231-241 Daystarr Pentwater 10/10/2006
231-242 Michigan Bell Tel Co Harbor Springs N/A
231-243 Interactive Services Network Alanson 3/24/2004
231-244 Centurylink Communications Boyne City 8/26/2015
231-245 New Cingular Wireless PCS Newaygo 7/17/2009
231-246 Comcast IP Phone Muskegon 12/22/2015
231-247 Bandwidth.com Clec Williamsburg 9/28/2018
231-249 Bandwidth.com Clec Cheboygan N/A
231-250 Cellco Partnership Big Rapids N/A
231-251 Peerless Network Of Michigan Lake Leelanau 12/2/2015
231-252 Bandwidth.com Clec Traverse City 4/18/2016
231-253 Omnipoint Communications Midwest Operations Cadillac 11/8/2018
231-254 Omnipoint Communications Midwest Operations Petoskey 10/24/2019
231-255 USA Mobility Wireless Onekama N/A
231-256 Michigan Bell Tel Co Lake Leelanau N/A
231-257 Peninsula Fiber Network Lake City 2/27/2019
231-258 Michigan Bell Tel Co Kalkaska N/A
231-259 Charter IP Enabled Services Shelby 2/7/2007
231-260 Omnipoint Communications Midwest Operations Muskegon 3/3/2017
231-261 Peninsula Fiber Network Ludington 12/31/2018
231-262 Acd Telecom Elmira 1/21/2005
231-263 Brightspeed Of Northern Michigan Kingsley N/A
231-264 Michigan Bell Tel Co Elk Rapids N/A
231-265 Charter IP Enabled Services Coral 5/19/2014
231-266 Michigan Bell Tel Co Irons N/A
231-267 Michigan Bell Tel Co Williamsburg N/A
231-268 Cellco Partnership Cheboygan 7/12/2004
231-269 Ace Tel. Co. Of Michigan Buckley N/A
231-270 Onvoy Boyne City 5/21/2021
231-271 Brightspeed Of Michigan Suttons Bay N/A
231-272 Onvoy Kingsley 8/8/2019
231-273 Onvoy Eastport 10/26/2020
231-274 American Messaging Services Traverse City N/A
231-275 Brightspeed Of Michigan Lake Ann N/A
231-276 Michigan Bell Tel Co Interlochen N/A
231-277 Onvoy Fountain 3/22/2016
231-278 Onvoy Spectrum Hesperia 10/26/2020
231-279 Level 3 Communications Big Rapids 12/20/2019
231-280 Onvoy Mancelona 2/29/2016
231-281 New Cingular Wireless PCS Cadillac 11/3/2020
231-282 New Cingular Wireless PCS Grant N/A
231-283 Onvoy Muskegon 11/9/2020
231-284 Omnipoint Communications Midwest Operations Manistee 3/1/2021
231-285 Omnipoint Communications Midwest Operations Cadillac 1/9/2020
231-286 Cellco Partnership Muskegon N/A
231-287 Cellco Partnership Big Rapids N/A
231-288 New Cingular Wireless PCS Muskegon 9/13/2005
231-289 Bandwidth.com Clec Charlevoix 7/19/2018
231-290 New Cingular Wireless PCS Indian River N/A
231-291 Interactive Services Network Muskegon 5/11/2012
231-292 Charter IP Enabled Services Whitehall 7/30/2010
231-293 HD Carrier Frankfort 5/14/2021
231-294 Onvoy Fife Lake 6/15/2021
231-295 Charter IP Enabled Services Lake City 9/26/2012
231-296 Charter IP Enabled Services Fremont 5/13/2021
231-297 Onvoy Kingsley 6/25/2021
231-298 Charter IP Enabled Services Irons 5/13/2021
231-299 MetroPCS Manistee 12/28/2011
231-300-XXXX --- 231-399-XXXX
NPANXX Carrier1 Area Served2 Date3
231-300 Onvoy Alden 9/7/2017
231-301 Cellco Partnership Hart N/A
231-302 Bandwidth.com Clec Petoskey N/A
231-303 Teleport Communications America Newaygo 5/16/2011
231-304 Onvoy Brutus 10/26/2020
231-305 Interactive Services Network Big Rapids N/A
231-306 Interactive Services Network Cadillac N/A
231-307 New Cingular Wireless PCS Morley N/A
231-308 Interactive Services Network Charlevoix N/A
231-309 Interactive Services Network Manistee N/A
231-310 Onvoy Falmouth 9/25/2018
231-312 Interactive Services Network Frankfort N/A
231-313 New Cingular Wireless PCS Traverse City N/A
231-314 Interactive Services Network Kalkaska N/A
231-315 USA Mobility Wireless Muskegon N/A
231-316 Interactive Services Network Ludington N/A
231-317 USA Mobility Wireless Boyne City N/A
231-318 USA Mobility Wireless Traverse City N/A
231-319 Interactive Services Network Mackinaw City N/A
231-320 Bandwidth.com Clec Torch River Bridge 9/3/2021
231-321 Cellco Partnership Elmira 5/19/2021
231-322 Frontier North Torch River Bridge N/A
231-323 Bandwidth.com Clec East Jordan N/A
231-324 Teleport Communications America Harbor Springs 5/25/2021
231-325 Brightspeed Of Michigan Honor N/A
231-326 Brightspeed Of Michigan Glen Lake N/A
231-327 New Cingular Wireless PCS Muskegon N/A
231-328 Brightspeed Of Michigan Merritt N/A
231-329 New Cingular Wireless PCS Muskegon N/A
231-330 Cellco Partnership Petoskey 12/10/2002
231-331 Frontier North Alden N/A
231-332 Interactive Services Network Muskegon N/A
231-333 Level 3 Communications Cheboygan 4/4/2002
231-334 Brightspeed Of Michigan Glen Lake N/A
231-335 New Cingular Wireless PCS Fremont N/A
231-336 USA Mobility Wireless Ludington N/A
231-337 New Cingular Wireless PCS Mcbain N/A
231-338 Bandwidth.com Clec Baldwin N/A
231-339 American Messaging Services Muskegon N/A
231-340 Cellco Partnership Elmira 7/9/2003
231-341 New Cingular Wireless PCS Lake Ann 05/22/2025
231-342 Cellco Partnership Traverse City N/A
231-343 Omnipoint Communications Midwest Operations Muskegon N/A
231-344 Interactive Services Network Petoskey N/A
231-345 Bandwidth.com Clec Reed City N/A
231-346 Interactive Services Network Traverse City N/A
231-347 Michigan Bell Tel Co Petoskey N/A
231-348 Michigan Bell Tel Co Petoskey N/A
231-349 Cellco Partnership Big Rapids N/A
231-350 Cellco Partnership Bellaire 7/9/2003
231-351 Interactive Services Network Scottville N/A
231-352 Michigan Bell Tel Co Frankfort N/A
231-353 Interactive Services Network Mcbain N/A
231-354 Michigan Bell Tel Co Coral N/A
231-355 Interactive Services Network Fremont N/A
231-356 Interactive Services Network Mancelona N/A
231-357 Cellco Partnership Traverse City N/A
231-358 Interactive Services Network Central Lake N/A
231-359 Charter IP Enabled Services Mecosta 9/26/2012
231-360 New Cingular Wireless PCS Traverse City 12/30/2002
231-361 Interactive Services Network Morley N/A
231-362 Kaleva Tel. Co. Kaleva N/A
231-363 Interactive Services Network Cheboygan N/A
231-364 Onvoy Northport 6/15/2021
231-365 Interactive Services Network Wolverine N/A
231-366 Level 3 Communications Fruitport 2/27/2003
231-367 Onvoy Wolverine 6/25/2021
231-368 Interactive Services Network Baldwin N/A
231-369 Ace Tel. Co. Of Michigan Soboardman N/A
231-370 Omnipoint Communications Midwest Operations Muskegon 9/3/2021
231-371 Bandwidth.com Clec Tustin 9/3/2021
231-372 Interactive Services Network Evart N/A
231-373 Cellco Partnership Petoskey 4/27/2004
231-374 Onvoy Shelby 6/15/2021
231-375 Cellco Partnership Muskegon N/A
231-376 Onvoy Twin Lake 7/2/2021
231-377 Frontier North Clam River N/A
231-378 Ace Tel. Co. Of Michigan Copemish Thompsonville N/A
231-379 Bandwidth.com Clec Onekama 8/26/2021
231-380 Omnipoint Communications Midwest Operations Newaygo 1/10/2022
231-381 Charter IP Enabled Services Whitecloud 5/13/2021
231-383 Cellco Partnership Beulah 4/29/2003
231-384 Cellco Partnership Kalkaska 5/1/2003
231-385 Onvoy Coral 7/20/2021
231-386 Michigan Bell Tel Co Northport N/A
231-387 New Cingular Wireless PCS Petoskey 10/6/2021
231-388 Cellco Partnership Le Roy 5/1/2003
231-389 Michigan Bell Tel Co Harrietta N/A
231-390 Omnipoint Communications Midwest Operations Big Rapids 10/26/2021
231-391 Bandwidth.com Clec Glen Lake 7/2/2021
231-392 Omnipoint Communications Midwest Operations Traverse City 1/9/2001
231-393 Onvoy Spectrum Le Roy 7/2/2021
231-394 Cellco Partnership Moorestown 7/29/2003
231-395 Interactive Services Network Grant N/A
231-396 Onvoy Cadillac 10/29/2021
231-397 Omnipoint Communications Midwest Operations Manistee 11/3/2021
231-398 Michigan Bell Tel Co Manistee N/A
231-399 Acd Telecom Frankfort 1/19/2005
231-400-XXXX --- 231-499-XXXX
NPANXX Carrier1 Area Served2 Date3
231-400 Onvoy Alanson 10/10/2019
231-401 Peninsula Fiber Network Traverse City 12/21/2021
231-402 Onvoy Muskegon 1/21/2022
231-403 AT&T Enterprises Williamsburg 8/16/2011
231-404 New Cingular Wireless PCS Stanwood 10/5/2004
231-405 Onvoy Alden 2/4/2022
231-406 Onvoy Falmouth 2/4/2022
231-407 Onvoy Mecosta 2/4/2022
231-408 New Cingular Wireless PCS Big Rapids N/A
231-409 New Cingular Wireless PCS Traverse City N/A
231-410 New Cingular Wireless PCS Manistee 8/12/2022
231-412 Bandwidth.com Clec Harbor Springs 10/11/2010
231-413 Omnipoint Communications Midwest Operations Kalkaska 2/14/2022
231-414 New Cingular Wireless PCS Newaygo N/A
231-415 Charter IP Enabled Services Dublin 12/5/2022
231-416 American Messaging Services Big Rapids N/A
231-417 Teleport Communications America Petoskey 01/06/2023
231-418 Onvoy Marion 07/11/2023
231-419 Onvoy Bellaire 07/11/2023
231-420 Cellco Partnership Cheboygan N/A
231-421 Charter IP Enabled Services Traverse City 2/20/2002
231-422 Centurylink Communications Pellston 8/25/2015
231-423 Bandwidth.com Clec Evart N/A
231-424 Acd Telecom Carr 1/27/2005
231-425 Omnipoint Communications Midwest Operations Ludington N/A
231-426 Onvoy Ravenna 07/11/2023
231-427 AT&T Enterprises Mackinaw City 8/17/2011
231-428 Onvoy Muskegon 07/14/2023
231-429 Cellco Partnership Cadillac 12/5/2002
231-430 Onvoy Boyne City 07/14/2023
231-431 Onvoy Clam River 5/19/2021
231-432 New Cingular Wireless PCS Northport 8/30/2002
231-433 Cellco Partnership Moorestown 4/29/2011
231-434 New Cingular Wireless PCS Manton 9/26/2014
231-435 Onvoy Eastport 07/14/2023
231-436 Michigan Bell Tel Co Mackinaw City N/A
231-437 Omnipoint Communications Midwest Operations Charlevoix N/A
231-438 Onvoy Harbor Springs 07/14/2023
231-439 Michigan Bell Tel Co Petoskey N/A
231-440 123.net Baldwin 8/27/2002
231-441 123.net Fife Lake 8/27/2002
231-442 Peerless Network Of Michigan Harrietta 12/1/2015
231-443 Onvoy Honor 1/8/2021
231-444 Onvoy Cadillac 8/24/2015
231-445 Cellco Partnership Cheboygan 8/24/2004
231-446 Onvoy Northport 07/14/2023
231-447 Onvoy Holton 12/2/2015
231-448 Island Tel. Co. St James N/A
231-449 Charter IP Enabled Services Baldwin 5/13/2021
231-450 New Cingular Wireless PCS Hesperia 1/19/2005
231-451 Onvoy Williamsburg 07/14/2023
231-452 Comcast IP Phone Newaygo 2/8/2001
231-453 Charter IP Enabled Services Holton 03/01/2024
231-454 MetroPCS Traverse City 9/23/2021
231-455 Onvoy Pentwater 1/8/2021
231-456 New Cingular Wireless PCS Glen Lake 09/05/2024
231-457 Acd Telecom Muskegon N/A
231-459 Paetec Itel Boyne City 1/9/2004
231-460 Onvoy Big Rapids N/A
231-462 Michigan Bell Tel Co Fountain N/A
231-463 Cellco Partnership Traverse City N/A
231-464 Michigan Bell Tel Co Freesoil N/A
231-465 New Cingular Wireless PCS Reed City N/A
231-466 Onvoy Spectrum Evart 7/2/2021
231-468 Omnipoint Communications Midwest Operations Cadillac 2/5/2001
231-475 Bandwidth.com Clec Manton 7/2/2021
231-477 Kaleva Tel. Co. Brethren N/A
231-480 Level 3 Communications Ludington 5/23/2002
231-484 Teleport Communications America East Jordan 8/7/2013
231-486 MCIMetro Access Transmission Services Traverse City N/A
231-487 Michigan Bell Tel Co Petoskey N/A
231-488 123.net Manistee 8/27/2002
231-489 Peninsula Fiber Network Petoskey 4/21/2015
231-492 Cellco Partnership Traverse City N/A
231-493 Omnipoint Communications Midwest Operations Traverse City 5/17/2017
231-494 American Messaging Services Big Rapids N/A
231-495 New Cingular Wireless PCS Bellaire 7/29/2016
231-497 New Cingular Wireless PCS Boyne City N/A
231-498 Level 3 Communications Elk Rapids 10/20/2004
231-499 Cellco Partnership Traverse City N/A
231-500-XXXX --- 231-599-XXXX
NPANXX Carrier1 Area Served2 Date3
231-500 Onvoy Whitehall 10/10/2019
231-508 Kaleva Telephone Company Onekama 6/3/2008
231-510 New Cingular Wireless PCS Manistee N/A
231-512 American Messaging Services Traverse City N/A
231-514 American Messaging Services Cadillac N/A
231-515 Acd Telecom Evart 1/19/2005
231-516 American Messaging Services Petoskey N/A
231-518 Level 3 Communications Kalkaska 6/18/2001
231-519 Cellco Partnership Newaygo 7/19/2002
231-520 123.net Charlevoix 8/27/2002
231-522 123.net Luther N/A
231-525 Michigan Bell Tel Co Wolverine N/A
231-526 Michigan Bell Tel Co Harbor Springs N/A
231-527 Michigan Bell Tel Co Big Rapids N/A
231-529 Brightspeed Of Michigan Brutus N/A
231-531 MetroPCS Muskegon 4/9/2019
231-533 Frontier North Bellaire N/A
231-534 AT&T Traverse City 10/30/2002
231-535 Michigan Bell Tel Co Walloon Lk N/A
231-536 Michigan Bell Tel Co East Jordan N/A
231-537 Brightspeed Of Michigan Levering N/A
231-538 123.net Fremont 8/27/2002
231-539 Michigan Bell Tel Co Pellston N/A
231-544 Frontier North Central Lake N/A
231-545 Charter IP Enabled Services Boyne Falls 9/23/2016
231-546 Brightspeed Of Michigan Elmira N/A
231-547 Michigan Bell Tel Co Charlevoix N/A
231-548 Brightspeed Of Michigan Alanson N/A
231-549 Brightspeed Of Michigan Boyne Falls N/A
231-550 MetroPCS Petoskey 9/22/2021
231-552 Omnipoint Communications Midwest Operations Charlevoix 07/31/2025
231-557 Cellco Partnership Muskegon N/A
231-559 Bandwidth.com Clec Mcbain 8/1/2012
231-563 New Cingular Wireless PCS Muskegon 1/9/2001
231-564 New Cingular Wireless PCS Kalkaska N/A
231-566 Ton80 Communications Harrietta 2/22/2022
231-567 Teleport Communications America Muskegon 12/2/2020
231-568 123.net Traverse City N/A
231-569 American Messaging Services Petoskey N/A
231-570 New Cingular Wireless PCS Fife Lake 3/29/2002
231-571 Frontier North Muskegon N/A
231-577 Level 3 Communications Cadillac 5/14/2002
231-578 Omnipoint Communications Midwest Operations Muskegon N/A
231-580 Omnipoint Communications Midwest Operations Big Rapids 2/5/2001
231-581 Charter IP Enabled Services Alba 4/20/2017
231-582 Michigan Bell Tel Co Boyne City N/A
231-583 123.net Ludington 8/27/2002
231-584 Pigeon Tel. Co. Alba N/A
231-585 Pigeon Tel. Co. Lake North N/A
231-587 Michigan Bell Tel Co Mancelona N/A
231-588 Frontier North Ellsworth N/A
231-590 Cellco Partnership Traverse City N/A
231-591 Michigan Bell Tel Co Big Rapids N/A
231-592 Michigan Bell Tel Co Big Rapids N/A
231-593 USA Mobility Wireless Cadillac N/A
231-594 Twilio International Hart 3/7/2001
231-596 USA Mobility Wireless Harbor Springs N/A
231-597 Michigan Bell Tel Co Cheboygan N/A
231-598 New Cingular Wireless PCS Big Rapids N/A
231-599 Frontier North Eastport N/A
231-600-XXXX --- 231-699-XXXX
NPANXX Carrier1 Area Served2 Date3
231-600 Fractel Traverse City 12/19/2019
231-604 USA Mobility Wireless Kalkaska N/A
231-605 USA Mobility Wireless Newaygo N/A
231-608 USA Mobility Wireless Frankfort N/A
231-613 New Cingular Wireless PCS Scottville N/A
231-614 123.net Pentwater 10/12/2001
231-615 American Messaging Services Cheboygan N/A
231-620 New Cingular Wireless PCS Traverse City N/A
231-622 Level 3 Communications Petoskey 8/19/2002
231-624 Omnipoint Communications Midwest Operations Kalkaska N/A
231-625 Michigan Bell Tel Co Cheboygan N/A
231-626 Charter IP Enabled Services Levering 9/26/2012
231-627 Michigan Bell Tel Co Cheboygan N/A
231-629 Omnipoint Communications Midwest Operations Big Rapids N/A
231-631 Cellco Partnership Traverse City 8/31/2001
231-632 New Cingular Wireless PCS Traverse City N/A
231-633 New Cingular Wireless PCS Traverse City N/A
231-634 Island Tel. Co. Bois Blanc N/A
231-635 123.net Mackinaw City 8/27/2002
231-636 123.net Howard City 8/12/2002
231-637 Interactive Services Network Northport 8/31/2001
231-638 Omnipoint Communications Midwest Operations Muskegon 3/9/2001
231-639 123.net Beulah 8/27/2002
231-640 New Cingular Wireless PCS Lake Ann 8/30/2002
231-642 Omnipoint Communications Midwest Operations Traverse City 4/2/2001
231-643 123.net Morley 8/27/2002
231-645 New Cingular Wireless PCS Traverse City N/A
231-646 Frontier North Ellsworth 6/18/2001
231-647 Interactive Services Network Coral 8/27/2001
231-648 Level 3 Communications Howard City 1/9/2001
231-649 Cellco Partnership Traverse City 7/19/2002
231-651 New Cingular Wireless PCS Beulah 8/30/2002
231-652 Michigan Bell Tel Co Newaygo N/A
231-655 Cellco Partnership Manistee 12/19/2014
231-656 123.net Kalkaska 8/27/2002
231-660 123.net Big Rapids 8/27/2002
231-663 Ton80 Communications Mesick 3/7/2022
231-666 Onvoy Muskegon 10/9/2017
231-667 New Cingular Wireless PCS Marion 8/30/2002
231-668 Level 3 Communications Traverse City 4/29/2002
231-670 Cellco Partnership Muskegon 2/21/2001
231-672 Teleport Communications America Muskegon 11/12/2001
231-674 Level 3 Communications Grant 5/18/2001
231-675 New Cingular Wireless PCS Boyne City 3/29/2002
231-676 New Cingular Wireless PCS Bellaire 8/30/2002
231-678 Acd Telecom Brethren 1/19/2005
231-679 Cellco Partnership Big Rapids 10/24/2002
231-680 Level 3 Communications Reed City 8/19/2002
231-681 Frontier North Fruitport 6/18/2001
231-682 Interactive Services Network Alden 4/22/2002
231-683 Level 3 Communications Muskegon 7/9/2001
231-685 Charter IP Enabled Services Ravenna 9/25/2014
231-686 123.net Frankfort 8/27/2002
231-688 Fractel Merritt 2/19/2020
231-689 Michigan Bell Tel Co Whitecloud N/A
231-690 Cellco Partnership Ludington 7/19/2002
231-695 Interactive Services Network Howard City 7/11/2001
231-699 Ton80 Communications Fountain 2/22/2022
231-707-XXXX --- 231-799-XXXX
NPANXX Carrier1 Area Served2 Date3
231-707 Onvoy Newaygo 2/25/2016
231-709 New Cingular Wireless PCS Traverse City N/A
231-712 American Messaging Services Muskegon N/A
231-714 Cellco Partnership Traverse City N/A
231-715 New Cingular Wireless PCS Traverse City N/A
231-719 Frontier North Muskegon N/A
231-720 Frontier North Muskegon N/A
231-721 123.net Hart 8/27/2002
231-722 Frontier North Muskegon N/A
231-723 Michigan Bell Tel Co Manistee N/A
231-724 Frontier North Muskegon N/A
231-725 Frontier North Muskegon N/A
231-726 Frontier North Muskegon N/A
231-727 Frontier North Muskegon N/A
231-728 Frontier North Muskegon N/A
231-729 New Cingular Wireless PCS Irons 8/30/2002
231-730 New Cingular Wireless PCS Muskegon N/A
231-731 123.net Shelby 10/12/2001
231-732 Onvoy Spectrum Morley N/A
231-733 Frontier North Muskegon N/A
231-734 Michigan Bell Tel Co Evart N/A
231-735 Cellco Partnership Traverse City 6/18/2001
231-736 Frontier North Muskegon N/A
231-737 Frontier North Muskegon N/A
231-739 Frontier North Muskegon N/A
231-740 Cellco Partnership Muskegon N/A
231-742 New Cingular Wireless PCS Hart N/A
231-743 Michigan Bell Tel Co Marion N/A
231-744 Frontier North Muskegon N/A
231-745 Michigan Bell Tel Co Baldwin N/A
231-746 Ton80 Communications Cheboygan 2/18/2022
231-747 Frontier North Muskegon N/A
231-750 New Cingular Wireless PCS Muskegon N/A
231-751 Onvoy Walloon Lk 10/6/2014
231-753 Paetec Itel Petoskey 6/18/2001
231-755 Frontier North Muskegon N/A
231-757 Michigan Bell Tel Co Scottville N/A
231-758 Omnipoint Communications Midwest Operations Petoskey N/A
231-759 Frontier North Muskegon N/A
231-760 Frontier North Muskegon N/A
231-762 Michigan Central Broadband Company Amble N/A
231-763 Charter IP Enabled Services Amble 4/19/2019
231-764 Interactive Services Network Fife Lake 8/31/2001
231-766 Frontier North Muskegon N/A
231-767 Frontier North Muskegon N/A
231-768 Michigan Bell Tel Co Le Roy N/A
231-769 Frontier North Muskegon N/A
231-771 Onvoy Elk Rapids 3/22/2016
231-772 Ton80 Communications Wellston 3/7/2022
231-773 Frontier North Muskegon N/A
231-774 Acd Telecom Interlochen 1/19/2005
231-775 Michigan Bell Tel Co Cadillac N/A
231-776 123.net Petoskey 8/27/2002
231-777 Frontier North Muskegon N/A
231-778 123.net Traverse City 8/27/2002
231-779 Michigan Bell Tel Co Cadillac N/A
231-780 Frontier North Muskegon N/A
231-782 123.net Cheboygan 8/27/2002
231-786 Fractel Traverse City 3/24/2021
231-787 Onvoy Whitecloud 11/7/2014
231-788 Frontier North Muskegon N/A
231-790 Paetec Itel Freesoil 6/18/2001
231-791 Paetec Itel Reed City 5/18/2001
231-792 123.net Mancelona 8/27/2002
231-793 AT&T Enterprises Whitecloud 1/9/2001
231-794 New Cingular Wireless PCS Manistee 8/30/2002
231-796 Michigan Bell Tel Co Big Rapids N/A
231-797 Michigan Bell Tel Co Luther N/A
231-798 Frontier North Muskegon N/A
231-799 Frontier North Muskegon N/A
231-800-XXXX --- 231-899-XXXX
NPANXX Carrier1 Area Served2 Date3
231-800 Onvoy Luther 10/2/2017
231-803 Level 3 Communications Morley 5/18/2001
231-805 Acd Telecom Kaleva 1/19/2005
231-806 123.net Coral 8/27/2002
231-808 123.net Central Lake 8/12/2002
231-813 123.net Ludington 2/8/2001
231-818 New Cingular Wireless PCS Cheboygan N/A
231-819 Onvoy Tustin 10/6/2014
231-821 Frontier North Holton N/A
231-822 Interactive Services Network Beulah 8/27/2001
231-823 Frontier North Stanwood N/A
231-824 Michigan Bell Tel Co Manton N/A
231-825 Michigan Bell Tel Co Mcbain N/A
231-826 Brightspeed Of Northern Michigan Falmouth N/A
231-828 Frontier North Twin Lake N/A
231-829 Michigan Bell Tel Co Tustin N/A
231-830 Frontier North Muskegon N/A
231-831 Onvoy East Jordan 5/21/2021
231-832 Michigan Bell Tel Co Reed City N/A
231-833 New Cingular Wireless PCS Wolverine 4/11/2005
231-834 Michigan Bell Tel Co Grant N/A
231-835 New Cingular Wireless PCS Glen Lake 8/30/2002
231-836 123.net Evart 8/27/2002
231-837 American Messaging Services Fremont N/A
231-838 New Cingular Wireless PCS Petoskey 3/29/2002
231-839 Brightspeed Of Michigan Lake City N/A
231-842 123.net Cadillac 8/27/2002
231-843 Frontier North Ludington N/A
231-844 Level 3 Communications Indian River 6/18/2001
231-845 Frontier North Ludington N/A
231-846 Omnipoint Communications Midwest Operations Cadillac N/A
231-848 Kaleva Tel. Co. Wellston N/A
231-852 New Cingular Wireless PCS Ludington N/A
231-853 Frontier North Ravenna N/A
231-854 Frontier North Hesperia N/A
231-855 New Cingular Wireless PCS Muskegon N/A
231-856 Michigan Bell Tel Co Morley N/A
231-859 Kaleva Tel. Co. Dublin N/A
231-861 Frontier North Shelby N/A
231-862 Ace Tel. Co. Of Michigan Hoxeyville N/A
231-864 Brightspeed Of Michigan Bear Lake N/A
231-865 Frontier North Fruitport N/A
231-866 New Cingular Wireless PCS Suttons Bay 8/30/2002
231-867 Brightspeed Of Central Michigan Chippewa Lake N/A
231-869 Frontier North Pentwater N/A
231-871 New Cingular Wireless PCS Beulah N/A
231-872 New Cingular Wireless PCS Reed City N/A
231-873 Frontier North Hart N/A
231-874 123.net Wolverine 8/27/2002
231-875 Bandwidth.com Clec Fruitport 7/6/2001
231-876 Michigan Bell Tel Co Cadillac N/A
231-877 123.net Northport N/A
231-878 Cellco Partnership Cadillac 7/19/2002
231-879 Michigan Bell Tel Co Fife Lake N/A
231-880 Skye Telecom Muskegon 9/8/2021
231-881 New Cingular Wireless PCS Petoskey N/A
231-882 Michigan Bell Tel Co Beulah N/A
231-883 New Cingular Wireless PCS Traverse City N/A
231-884 New Cingular Wireless PCS Cadillac N/A
231-885 Ace Tel. Co. Of Michigan Mesick N/A
231-886 New Cingular Wireless PCS Kalkaska N/A
231-887 New Cingular Wireless PCS Manistee N/A
231-888 Onvoy Twin Lake 6/16/2015
231-889 Michigan Bell Tel Co Onekama N/A
231-890 Michigan Bell Tel Co Traverse City N/A
231-893 Frontier North Whitehall N/A
231-894 Frontier North Whitehall N/A
231-898 Carr Tel. Co. Carr N/A
231-899 123.net Northport 8/27/2002
231-900-XXXX --- 231-999-XXXX
NPANXX Carrier1 Area Served2 Date3
231-900 Fractel Muskegon 5/13/2019
231-902 Interactive Services Network Hart 8/27/2001
231-903 Level 3 Communications Muskegon 4/29/2002
231-907 New Cingular Wireless PCS Ludington 9/3/2002
231-908 123.net Mcbain 8/27/2002
231-912 New Cingular Wireless PCS Reed City 8/30/2002
231-916 Level 3 Communications Mancelona 6/18/2001
231-920 New Cingular Wireless PCS Cadillac N/A
231-922 Michigan Bell Tel Co Traverse City N/A
231-923 Omnipoint Communications Midwest Operations Hart 5/18/2001
231-924 Michigan Bell Tel Co Fremont N/A
231-925 123.net Scottville 8/27/2002
231-928 Michigan Bell Tel Co Fremont N/A
231-929 Michigan Bell Tel Co Traverse City N/A
231-930 Acd Telecom Beulah 6/18/2001
231-932 Michigan Bell Tel Co Traverse City N/A
231-933 Michigan Bell Tel Co Traverse City N/A
231-935 Michigan Bell Tel Co Traverse City N/A
231-936 Paetec Itel Scottville 6/18/2001
231-937 Frontier North Howard City N/A
231-938 Michigan Bell Tel Co Traverse City N/A
231-939 New Cingular Wireless PCS Petoskey 8/9/2017
231-941 Michigan Bell Tel Co Traverse City N/A
231-942 Cellco Partnership Cadillac 6/18/2001
231-943 Michigan Bell Tel Co Traverse City N/A
231-944 Cynergycomm.net Traverse City N/A
231-946 Michigan Bell Tel Co Traverse City N/A
231-947 Michigan Bell Tel Co Traverse City N/A
231-955 New Cingular Wireless PCS Muskegon N/A
231-963 Ton80 Communications Mcbain 2/28/2022
231-966 Ton80 Communications Freesoil 2/22/2022
231-968 Bandwidth.com Clec Cadillac 9/16/2021
231-970 New Cingular Wireless PCS Bear Lake 8/30/2002
231-972 Brightspeed Of Central Michigan Mecosta N/A
231-974 123.net Grant 8/27/2002
231-977 Fractel Mackinaw City 2/19/2020
231-981 Frontier North Whitehall N/A
231-994 Acd Telecom Lake Leelanau 1/19/2005
231-995 Michigan Bell Tel Co Traverse City N/A
231-999 Onvoy Central Lake 8/24/2015
  1. NPA-NXX assigned carrier; with Number Pooling thousand block numbers are often assigned to other carriers as well; moreover, phone numbers can be ported between service providers
  2. 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.
  3. Assignment date. N/A - mostly central office codes assigned before 2001.
  4. NXX prefixes last updated: November 22, 2025

Cities in area code 231

City1 County Time Zone1
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 USA area code 231. When multiple places in a US state 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 (currently ).
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