| Prefixes | City | County | Line Type | Company |
|---|---|---|---|---|
| 517-202 | Lansing | Ingham | Cell Phone | Nextel Communications, Inc. |
| 517-203 | East Lansing | Ingham | Landline | Ameritech Michigan |
| 517-204 | Lansing | Ingham | Cell Phone | Nextel Communications, Inc. |
| 517-206 | Jackson | Jackson | Cell Phone | Nextel Communications, Inc. |
| 517-207 | Southfield | Oakland | Landline | Telnet Worldwide, Inc. |
| 517-213 | Charlotte | Eaton | Landline | Level 3 Communications, Llc... |
| 517-214 | Lansing | Ingham | Cell Phone | Sprint Spectrum L.p. |
| 517-219 | Fowlerville | Livingston | Landline | Level 3 Communications, Llc... |
| 517-222 | Grass Lake | Jackson | Landline | Brooks Fiber Communications... |
| 517-223 | Fowlerville | Livingston | Landline | Ameritech Michigan |
| 517-224 | Potterville | Eaton | Landline | Level 3 Communications, Llc... |
| 517-225 | Southfield | Oakland | Landline | Unknown |
| 517-226 | Dewitt | Clinton | Landline | American Messaging (am), Inc. |
| 517-227 | Coldwater | Branch | Cell Phone | Alltel Communications, Inc.... |
| 517-228 | Potterville | Eaton | Cell Phone | Usa Mobility Wireless, Inc. |
| 517-229 | Brighton | Livingston | Cell Phone | Usa Mobility Wireless, Inc. |
| 517-230 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-231 | Lansing | Eaton | Cell Phone | Cellco Partnership Dba Veri... |
| 517-233 | Fowlerville | Livingston | Landline | Brooks Fiber Communications... |
| 517-234 | Roscommon | Roscommon | Cell Phone | Usa Mobility Wireless, Inc. |
| 517-237 | Hillsdale | Hillsdale | Landline | Unknown |
| 517-238 | Coldwater | Branch | Landline | Frontier North, Inc. Mi |
| 517-241 | Okemos | Ingham | Landline | Ameritech Michigan |
| 517-242 | Dewitt | Clinton | Cell Phone | Cellco Partnership Dba Veri... |
| 517-243 | Westphalia | Clinton | Cell Phone | Cellco Partnership Dba Veri... |
| 517-244 | Mason | Ingham | Landline | Ameritech Michigan |
| 517-245 | Linwood | Bay | Landline | Unknown |
| 517-249 | Saginaw | Saginaw | Landline | Unknown |
| 517-250 | Jackson | Jackson | Cell Phone | Centennial Michiana License... |
| 517-251 | Lansing | Ingham | Landline | American Messaging (am), Inc. |
| 517-252 | Manitou Beach | Lenawee | Cell Phone | Centennial Michiana License... |
| 517-254 | Camden | Hillsdale | Landline | Frontier Communications Of... |
| 517-256 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-260 | Manitou Beach | Lenawee | Cell Phone | Alltel Communications, Inc.... |
| 517-262 | Jackson | Jackson | Cell Phone | Cellco Partnership Dba Veri... |
| 517-263 | Adrian | Lenawee | Landline | Frontier North, Inc. Mi |
| 517-264 | Adrian | Lenawee | Landline | Frontier North, Inc. Mi |
| 517-265 | Adrian | Lenawee | Landline | Frontier North, Inc. Mi |
| 517-266 | Adrian | Lenawee | Landline | Frontier North, Inc. Mi |
| 517-267 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-268 | Holt | Ingham | Landline | Tds Metrocom Inc. Mi |
| 517-269 | Bad Axe | Huron | Landline | Unknown |
| 517-270 | Onsted | Lenawee | Cell Phone | Centennial Michiana License... |
| 517-272 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-274 | Dewitt | Clinton | Landline | Unknown |
| 517-275 | Roscommon | Roscommon | Landline | Unknown |
| 517-277 | Dewitt | Clinton | Landline | Westphalia Broadband, Inc.... |
| 517-278 | Coldwater | Branch | Landline | Frontier North, Inc. Mi |
| 517-279 | Coldwater | Branch | Landline | Frontier North, Inc. Mi |
| 517-281 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-282 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-283 | Reading | Hillsdale | Landline | Frontier North, Inc. Mi |
| 517-284 | Saginaw | Saginaw | Landline | Unknown |
| 517-285 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-286 | Waldron | Hillsdale | Landline | Waldron Telephone Co. |
| 517-287 | North Adams | Hillsdale | Landline | Frontier Communications Of... |
| 517-288 | Eau Claire | Eau Claire | Cell Phone | Centennial Michiana License... |
| 517-289 | Vestaburg | Montcalm | Landline | Unknown |
| 517-290 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-292 | Howell | Livingston | Landline | Tcg Detroit Mi |
| 517-294 | Fowlerville | Livingston | Cell Phone | Cellco Partnership Dba Veri... |
| 517-296 | Montgomery | Branch | Landline | Frontier Communications Of... |
| 517-300 | Mount Pleasant | Isabella | Landline | Unknown |
| 517-301 | Tecumseh | Lenawee | Cell Phone | Centennial Michiana License... |
| 517-303 | Lansing | Ingham | Cell Phone | Omnipoint Communications Mi... |
| 517-304 | Brighton | Livingston | Cell Phone | New Cingular Wireless Pcs,... |
| 517-306 | Tecumseh | Lenawee | Cell Phone | Centennial Michiana License... |
| 517-308 | Dimondale | Eaton | Landline | Brooks Fiber Communications... |
| 517-316 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-318 | Lansing | Ingham | Landline | Brooks Fiber Communications... |
| 517-319 | Lansing | Ingham | Landline | Brooks Fiber Communications... |
| 517-321 | Lansing | Eaton | Landline | Ameritech Michigan |
| 517-322 | Lansing | Eaton | Landline | Ameritech Michigan |
| 517-323 | Lansing | Eaton | Landline | Ameritech Michigan |
| 517-324 | East Lansing | Ingham | Landline | Ameritech Michigan |
| 517-325 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-327 | Lansing | Eaton | Landline | Ameritech Michigan |
| 517-328 | Sidney | Montcalm | Landline | Unknown |
| 517-330 | Lansing | Ingham | Landline | Telnet Worldwide, Inc. |
| 517-331 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-332 | East Lansing | Ingham | Landline | Ameritech Michigan |
| 517-333 | East Lansing | Ingham | Landline | Ameritech Michigan |
| 517-334 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-335 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-336 | East Lansing | Ingham | Landline | Ameritech Michigan |
| 517-337 | East Lansing | Ingham | Landline | Ameritech Michigan |
| 517-338 | Brighton | Livingston | Landline | Xo Communications Services,... |
| 517-339 | Haslett | Ingham | Landline | Ameritech Michigan |
| 517-342 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-345 | West Branch | Ogemaw | Landline | Brooks Fiber Communications... |
| 517-346 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-347 | Okemos | Ingham | Landline | Ameritech Michigan |
| 517-348 | Grayling | Crawford | Landline | Neutral Tandemmichigan, Ll... |
| 517-349 | Okemos | Ingham | Landline | Ameritech Michigan |
| 517-351 | East Lansing | Ingham | Landline | Ameritech Michigan |
| 517-353 | East Lansing | Ingham | Landline | Ameritech Michigan |
| 517-354 | Alpena | Alpena | Landline | Unknown |
| 517-355 | East Lansing | Ingham | Landline | Ameritech Michigan |
| 517-356 | Alpena | Alpena | Landline | Unknown |
| 517-357 | Hillsdale | Hillsdale | Landline | Frontier Communications Of... |
| 517-360 | Westphalia | Clinton | Landline | American Messaging (am), Inc. |
| 517-362 | Tawas City | Iosco | Landline | Unknown |
| 517-363 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-364 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-366 | Houghton Lake | Roscommon | Cell Phone | Sprint Spectrum L.p. |
| 517-367 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-368 | Camden | Hillsdale | Landline | Frontier Communications Of... |
| 517-369 | Bronson | Branch | Landline | Frontier North, Inc. Mi |
| 517-371 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-372 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-373 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-374 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-375 | Howell | Livingston | Cell Phone | Cellco Partnership Dba Veri... |
| 517-376 | Howell | Livingston | Landline | Comcast Phone Of Michigan,... |
| 517-377 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-379 | Okemos | Ingham | Landline | Unknown |
| 517-381 | Okemos | Ingham | Landline | Ameritech Michigan |
| 517-382 | Dewitt | Clinton | Landline | Unknown |
| 517-383 | Pittsford | Hillsdale | Landline | Frontier Communications Of... |
| 517-386 | Clare | Clare | Landline | Brooks Fiber Communications... |
| 517-388 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-389 | Saint Helen | Roscommon | Landline | Unknown |
| 517-391 | Lansing | Eaton | Landline | At&t Local |
| 517-392 | Jackson | Jackson | Landline | At&t Local |
| 517-393 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-394 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-398 | Hillsdale | Hillsdale | Cell Phone | Centennial Michiana License... |
| 517-402 | Lansing | Ingham | Cell Phone | Omnipoint Communications Mi... |
| 517-403 | Adrian | Lenawee | Cell Phone | Nextel Communications, Inc. |
| 517-404 | Howell | Livingston | Cell Phone | Nextel Communications, Inc. |
| 517-408 | Lansing | Ingham | Landline | Comcast Phone Of Michigan,... |
| 517-410 | Lansing | Ingham | Cell Phone | Sprint Spectrum L.p. |
| 517-414 | Jackson | Jackson | Cell Phone | Sprint Spectrum L.p. |
| 517-416 | Jackson | Jackson | Cell Phone | Cellco Partnership Dba Veri... |
| 517-417 | Adrian | Lenawee | Landline | Tc3 Telecom, Inc. Mi |
| 517-418 | Homer | Calhoun | Cell Phone | Centennial Michiana License... |
| 517-420 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-421 | Jackson | Jackson | Landline | Unknown |
| 517-422 | Houghton Lake | Roscommon | Landline | Unknown |
| 517-423 | Tecumseh | Lenawee | Landline | Frontier North, Inc. Mi |
| 517-424 | Tecumseh | Lenawee | Landline | Frontier North, Inc. Mi |
| 517-425 | Haslett | Ingham | Cell Phone | Alltel Communications, Inc.... |
| 517-426 | Gladwin | Gladwin | Landline | Unknown |
| 517-427 | Edmore | Montcalm | Landline | Unknown |
| 517-428 | Manchester | Washtenaw | Landline | Unknown |
| 517-431 | Tipton | Lenawee | Landline | Frontier North, Inc. Mi |
| 517-432 | East Lansing | Ingham | Landline | Ameritech Michigan |
| 517-436 | Sand Creek | Lenawee | Landline | Sand Creek Telephone Co. |
| 517-437 | Hillsdale | Hillsdale | Landline | Ameritech Michigan |
| 517-439 | Hillsdale | Hillsdale | Landline | Ameritech Michigan |
| 517-441 | Eaton Rapids | Eaton | Landline | Talk America Inc. Mi |
| 517-442 | Adrian | Lenawee | Cell Phone | Centennial Michiana License... |
| 517-443 | Blissfield | Lenawee | Landline | Ogden Telephone Co. Mi |
| 517-444 | Lansing | Ingham | Landline | Brooks Fiber Communications... |
| 517-445 | Clayton | Lenawee | Landline | Communications Corp. Of Mic... |
| 517-446 | Howell | Livingston | Landline | Deerfield Farmers Telepho... |
| 517-447 | Deerfield | Lenawee | Landline | Deerfield Farmers Telephone... |
| 517-448 | Hudson | Lenawee | Landline | Frontier North, Inc. Mi |
| 517-449 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-451 | Britton | Lenawee | Landline | Frontier North, Inc. Mi |
| 517-453 | Pigeon | Huron | Landline | Unknown |
| 517-455 | Lansing | Ingham | Landline | Talk America Inc. Mi |
| 517-456 | Clinton | Lenawee | Landline | Frontier North, Inc. Mi |
| 517-458 | Morenci | Lenawee | Landline | Frontier Midstates, Inc. Mi |
| 517-459 | Osseo | Hillsdale | Landline | Level 3 Communications, Llc... |
| 517-460 | Jackson | Jackson | Landline | Unknown |
| 517-463 | Alma | Gratiot | Landline | Unknown |
| 517-466 | Lansing | Ingham | Landline | Brooks Fiber Communications... |
| 517-467 | Onsted | Lenawee | Landline | Frontier Communications Of... |
| 517-468 | Webberville | Ingham | Landline | Shiawassee Telephone Co. |
| 517-470 | Tecumseh | Lenawee | Landline | Tc3 Telecom, Inc. Mi |
| 517-471 | Ossineke | Alpena | Landline | Unknown |
| 517-474 | Jackson | Jackson | Cell Phone | Centennial Michiana License... |
| 517-477 | Holt | Ingham | Cell Phone | Centennial Michiana License... |
| 517-478 | Lanse | Baraga | Landline | Unknown |
| 517-481 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-482 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-483 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-484 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-485 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-486 | Blissfield | Lenawee | Landline | Frontier North, Inc. Mi |
| 517-487 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-488 | Lansing | Ingham | Landline | Long Distance Of Michigan,... |
| 517-489 | Walled Lake | Oakland | Landline | Infotelecom, Llc Mi |
| 517-490 | Lansing | Ingham | Cell Phone | Nextel Communications, Inc. |
| 517-492 | Lansing | Ingham | Landline | Onvoy, Inc. Mi |
| 517-494 | Lansing | Ingham | Cell Phone | Centennial Michiana License... |
| 517-497 | Saginaw | Saginaw | Landline | Unknown |
| 517-499 | Jackson | Jackson | Cell Phone | Cellco Partnership Dba Veri... |
| 517-504 | Jackson | Jackson | Landline | Tc3 Telecom, Inc. Mi |
| 517-505 | East Lansing | Ingham | Cell Phone | Omnipoint Communications Mi... |
| 517-507 | Lansing | Ingham | Landline | Level 3 Communications, Llc... |
| 517-512 | Haslett | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-515 | Lansing | Ingham | Cell Phone | New Cingular Wireless Pcs,... |
| 517-518 | Howell | Livingston | Cell Phone | New Cingular Wireless Pcs,... |
| 517-521 | Webberville | Ingham | Landline | Frontier Midstates, Inc. Mi |
| 517-522 | Grass Lake | Jackson | Landline | Frontier North, Inc. Mi |
| 517-523 | Osseo | Hillsdale | Landline | Frontier Communications Of... |
| 517-524 | Concord | Jackson | Landline | Frontier Communications Of... |
| 517-525 | Wolverine | Cheboygan | Cell Phone | Cellco Partnership Dba Veri... |
| 517-526 | Portland | Ionia | Cell Phone | Cellco Partnership Dba Veri... |
| 517-527 | Concord | Jackson | Landline | American Messaging (am), Inc. |
| 517-529 | Clarklake | Jackson | Landline | Ameritech Michigan |
| 517-531 | Parma | Jackson | Landline | Frontier Midstates, Inc. Mi |
| 517-532 | Grass Lake | Jackson | Landline | Unknown |
| 517-536 | Jackson | Jackson | Landline | Ameritech Michigan |
| 517-539 | Harrison | Clare | Landline | Unknown |
| 517-540 | Howell | Livingston | Landline | Ameritech Michigan |
| 517-541 | Charlotte | Eaton | Landline | Ameritech Michigan |
| 517-542 | Litchfield | Hillsdale | Landline | Centurytel Midwestmidwest... |
| 517-543 | Charlotte | Eaton | Landline | Ameritech Michigan |
| 517-544 | Jackson | Jackson | Landline | Local Exchange Carriers Of... |
| 517-545 | Howell | Livingston | Landline | Ameritech Michigan |
| 517-546 | Howell | Livingston | Landline | Ameritech Michigan |
| 517-547 | Manitou Beach | Lenawee | Landline | Frontier Midstates, Inc. Mi |
| 517-548 | Howell | Livingston | Landline | Ameritech Michigan |
| 517-549 | Jonesville | Hillsdale | Landline | Centurytel Midwestmidwest... |
| 517-552 | Howell | Livingston | Landline | Ameritech Michigan |
| 517-554 | Albion | Calhoun | Cell Phone | Cellco Partnership Dba Veri... |
| 517-555 | Jackson | Jackson | Landline | Unknown |
| 517-561 | Laingsburg | Shiawassee | Landline | Unknown |
| 517-563 | Horton | Jackson | Landline | Frontier Communications Of... |
| 517-565 | Stockbridge | Ingham | Landline | Frontier Midstates, Inc. Mi |
| 517-566 | Sunfield | Eaton | Landline | Centurytel Midwestmidwest... |
| 517-567 | Camden | Hillsdale | Landline | Frontier Communications Of... |
| 517-568 | Homer | Calhoun | Landline | Frontier Midstates, Inc. Mi |
| 517-569 | Rives Junction | Jackson | Landline | Frontier Midstates, Inc. Mi |
| 517-574 | Lansing | Ingham | Landline | Clear Rate Communications,... |
| 517-575 | Haslett | Ingham | Landline | Ameritech Michigan |
| 517-579 | Howell | Livingston | Landline | Broadwing Communications, L... |
| 517-580 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-581 | Springport | Jackson | Cell Phone | Cellco Partnership Dba Veri... |
| 517-582 | Dewitt | Clinton | Cell Phone | Cellco Partnership Dba Veri... |
| 517-583 | Tekonsha | Calhoun | Landline | Level 3 Communications, Llc... |
| 517-584 | Carson City | Montcalm | Landline | Local Exchange Carriers Of... |
| 517-586 | Howell | Livingston | Landline | Phone Michigan |
| 517-587 | Westphalia | Clinton | Landline | Unknown |
| 517-588 | Charlotte | Eaton | Cell Phone | Sprint Spectrum L.p. |
| 517-589 | Leslie | Ingham | Landline | Ameritech Michigan |
| 517-591 | Gaines | Genesee | Landline | Unknown |
| 517-592 | Brooklyn | Jackson | Landline | Frontier Communications Of... |
| 517-594 | Osseo | Hillsdale | Landline | Acd Telecom, Inc. Mi |
| 517-596 | Munith | Jackson | Landline | Frontier Midstates, Inc. Mi |
| 517-602 | Perry | Shiawassee | Landline | Michtel Communications Llc... |
| 517-604 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-605 | Tecumseh | Lenawee | Cell Phone | Nextel Communications, Inc. |
| 517-607 | Hillsdale | Hillsdale | Landline | Ameritech Michigan |
| 517-609 | Howell | Livingston | Landline | Local Exchange Carriers Of... |
| 517-610 | Hillsdale | Hillsdale | Cell Phone | Sprint Spectrum L.p. |
| 517-612 | Jackson | Jackson | Cell Phone | Nextel Communications, Inc. |
| 517-614 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-615 | Vermontville | Eaton | Cell Phone | Centennial Michiana License... |
| 517-617 | Coldwater | Branch | Cell Phone | Centennial Michiana License... |
| 517-618 | Howell | Livingston | Landline | Level 3 Communications, Llc... |
| 517-621 | Clinton | Lenawee | Landline | Telnet Worldwide, Inc. |
| 517-622 | Grand Ledge | Eaton | Landline | Frontier North, Inc. Mi |
| 517-623 | Dansville | Ingham | Landline | Ameritech Michigan |
| 517-624 | Montrose | Genesee | Landline | Arialink Telecom, Llc Mi |
| 517-625 | Perry | Shiawassee | Landline | Shiawassee Telephone Co. |
| 517-626 | Eagle | Clinton | Landline | Frontier North, Inc. Mi |
| 517-627 | Grand Ledge | Eaton | Landline | Frontier North, Inc. Mi |
| 517-628 | Mason | Ingham | Landline | Frontier Midstates, Inc. Mi |
| 517-629 | Albion | Calhoun | Landline | Ameritech Michigan |
| 517-630 | Albion | Calhoun | Landline | Ameritech Michigan |
| 517-631 | Midland | Midland | Landline | Telnet Worldwide, Inc. |
| 517-632 | Howell | Livingston | Landline | American Messaging (am), Inc. |
| 517-634 | Morrice | Shiawassee | Landline | Telnet Worldwide, Inc. |
| 517-636 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-639 | Quincy | Branch | Landline | Frontier North, Inc. Mi |
| 517-641 | Bath | Clinton | Landline | Frontier North, Inc. Mi |
| 517-642 | Dewitt | Clinton | Landline | Local Exchange Carriers Of... |
| 517-643 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-645 | Potterville | Eaton | Landline | Ameritech Michigan |
| 517-646 | Dimondale | Eaton | Landline | Ameritech Michigan |
| 517-647 | Portland | Ionia | Landline | Ameritech Michigan |
| 517-648 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-649 | Mulliken | Eaton | Landline | Ameritech Michigan |
| 517-651 | Laingsburg | Shiawassee | Landline | Frontier North, Inc. Mi |
| 517-652 | Frankenmuth | Saginaw | Cell Phone | Nextel Communications, Inc. |
| 517-653 | East Lansing | Ingham | Landline | Telnet Worldwide, Inc. |
| 517-654 | Sterling | Arenac | Landline | Telnet Worldwide, Inc. |
| 517-655 | Williamston | Ingham | Landline | Frontier North, Inc. Mi |
| 517-656 | Bay Port | Huron | Landline | Unknown |
| 517-657 | Laingsburg | Shiawassee | Landline | Unknown |
| 517-659 | Haslett | Ingham | Landline | Telnet Worldwide, Inc. |
| 517-662 | Auburn | Bay | Cell Phone | Cellco Partnership Dba Veri... |
| 517-663 | Eaton Rapids | Eaton | Landline | Ameritech Michigan |
| 517-664 | East Lansing | Ingham | Landline | Ameritech Michigan |
| 517-665 | Dewitt | Clinton | Landline | Unknown |
| 517-667 | Bay City | Bay | Cell Phone | Cellco Partnership Dba Veri... |
| 517-668 | Dewitt | Clinton | Landline | Frontier North, Inc. Mi |
| 517-669 | Dewitt | Clinton | Landline | Frontier North, Inc. Mi |
| 517-671 | Bronson | Branch | Landline | Telnet Worldwide, Inc. |
| 517-672 | Howell | Livingston | Cell Phone | Sprint Spectrum L.p. |
| 517-673 | Caro | Tuscola | Cell Phone | Nextel Communications, Inc. |
| 517-675 | Perry | Shiawassee | Landline | Shiawassee Telephone Co. |
| 517-676 | Mason | Ingham | Landline | Ameritech Michigan |
| 517-677 | Coldwater | Branch | Cell Phone | Sprint Spectrum L.p. |
| 517-679 | Lansing | Ingham | Landline | Local Exchange Carriers Of... |
| 517-680 | Albion | Calhoun | Landline | Level 3 Communications, Llc... |
| 517-681 | Saint Louis | Gratiot | Landline | Unknown |
| 517-682 | Blissfield | Lenawee | Landline | Local Exchange Carriers Of... |
| 517-684 | Bay City | Bay | Landline | Acd Telecom, Inc. Mi |
| 517-685 | Rose City | Ogemaw | Landline | Unknown |
| 517-686 | Kawkawlin | Bay | Landline | At&t Local |
| 517-687 | Midland | Midland | Landline | Unknown |
| 517-688 | Jerome | Hillsdale | Landline | Frontier Communications Of... |
| 517-689 | Hillsdale | Hillsdale | Landline | Telnet Worldwide, Inc. |
| 517-691 | Howell | Livingston | Landline | Acd Telecom, Inc. Mi |
| 517-692 | Bay City | Bay | Landline | Acd Telecom, Inc. Mi |
| 517-693 | Jackson | Jackson | Landline | Unknown |
| 517-694 | Holt | Ingham | Landline | Ameritech Michigan |
| 517-695 | Saginaw | Saginaw | Landline | Acd Telecom, Inc. Mi |
| 517-696 | Howell | Livingston | Landline | Acd Telecom, Inc. Mi |
| 517-697 | Onsted | Lenawee | Landline | Daystarr, Llc Dba Daystarr... |
| 517-699 | Holt | Ingham | Landline | Ameritech Michigan |
| 517-702 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-703 | Lansing | Eaton | Landline | Ameritech Michigan |
| 517-705 | Burlington | Calhoun | Landline | Level 3 Communications, Llc... |
| 517-706 | Okemos | Ingham | Landline | Ameritech Michigan |
| 517-708 | Lansing | Ingham | Landline | Cynergycomm.net, Inc. Mi |
| 517-709 | Holt | Ingham | Landline | Brooks Fiber Communications... |
| 517-710 | Stockbridge | Ingham | Landline | Telnet Worldwide, Inc. |
| 517-712 | Lansing | Ingham | Cell Phone | Nextel Communications, Inc. |
| 517-714 | Burlington | Calhoun | Landline | Level 3 Communications, Llc... |
| 517-719 | Lansing | Ingham | Cell Phone | Nextel Communications, Inc. |
| 517-721 | Lansing | Eaton | Landline | Ameritech Michigan |
| 517-723 | Owosso | Shiawassee | Landline | Unknown |
| 517-724 | Albion | Calhoun | Landline | Telnet Worldwide, Inc. |
| 517-725 | Owosso | Shiawassee | Landline | Unknown |
| 517-726 | Vermontville | Eaton | Landline | Ameritech Michigan |
| 517-727 | Adrian | Lenawee | Landline | Telnet Worldwide, Inc. |
| 517-728 | Hale | Iosco | Landline | Level 3 Communications, Llc... |
| 517-731 | Gaylord | Otsego | Landline | Level 3 Communications, Llc... |
| 517-732 | Gaylord | Otsego | Landline | Local Exchange Carriers Of... |
| 517-734 | Rogers City | Presque Isle | Landline | Unknown |
| 517-736 | Barton City | Alcona | Landline | Local Exchange Carriers Of... |
| 517-739 | Oscoda | Iosco | Landline | Unknown |
| 517-740 | Jackson | Jackson | Cell Phone | Cellco Partnership Dba Veri... |
| 517-741 | Union City | Branch | Landline | Frontier North, Inc. Mi |
| 517-742 | Hillman | Montmorency | Landline | Sbc Internet Services, Inc. |
| 517-743 | Portland | Ionia | Landline | Level 3 Communications, Llc... |
| 517-745 | Jackson | Jackson | Cell Phone | Cellco Partnership Dba Veri... |
| 517-746 | Bridgeport | Saginaw | Landline | Unknown |
| 517-748 | Jackson | Jackson | Landline | Sbc Internet Services, Inc. |
| 517-749 | Lansing | Ingham | Cell Phone | Nextel Communications, Inc. |
| 517-750 | Jackson | Jackson | Landline | Ameritech Michigan |
| 517-751 | Union City | Branch | Landline | Unknown |
| 517-752 | Saginaw | Saginaw | Landline | Unknown |
| 517-753 | Saginaw | Saginaw | Landline | Telnet Worldwide, Inc. |
| 517-754 | Saginaw | Saginaw | Landline | Unknown |
| 517-755 | Lansing | Ingham | Cell Phone | New Cingular Wireless Pcs,... |
| 517-756 | Union City | Branch | Landline | Level 3 Communications, Llc... |
| 517-758 | Saginaw | Saginaw | Landline | Unknown |
| 517-759 | Adrian | Lenawee | Cell Phone | Centurytel Wireless, Inc.mi |
| 517-762 | Mason | Ingham | Landline | Local Exchange Carriers Of... |
| 517-763 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-764 | Jackson | Jackson | Landline | Ameritech Michigan |
| 517-765 | Burlington | Calhoun | Landline | Frontier Midstates, Inc. Mi |
| 517-766 | Posen | Presque Isle | Landline | Telnet Worldwide, Inc. |
| 517-767 | Tekonsha | Calhoun | Landline | Frontier Midstates, Inc. Mi |
| 517-768 | Jackson | Jackson | Landline | Ameritech Michigan |
| 517-769 | Pleasant Lake | Jackson | Landline | Ameritech Michigan |
| 517-772 | Mount Pleasant | Isabella | Landline | Telnet Worldwide, Inc. |
| 517-773 | Mount Pleasant | Isabella | Landline | Unknown |
| 517-774 | Coldwater | Branch | Landline | Level 3 Communications, Llc... |
| 517-775 | Mount Pleasant | Isabella | Cell Phone | New Cingular Wireless Pcs,... |
| 517-776 | Saginaw | Saginaw | Landline | Unknown |
| 517-777 | Saginaw | Saginaw | Landline | Unknown |
| 517-780 | Jackson | Jackson | Landline | Ameritech Michigan |
| 517-781 | Coldwater | Branch | Landline | Level 3 Communications, Llc... |
| 517-782 | Jackson | Jackson | Landline | Ameritech Michigan |
| 517-783 | Jackson | Jackson | Landline | Ameritech Michigan |
| 517-784 | Jackson | Jackson | Landline | Ameritech Michigan |
| 517-785 | Lansing | Ingham | Landline | Local Exchange Carriers Of... |
| 517-786 | Lewiston | Montmorency | Landline | Unknown |
| 517-787 | Jackson | Jackson | Landline | Ameritech Michigan |
| 517-788 | Jackson | Jackson | Landline | Ameritech Michigan |
| 517-789 | Jackson | Jackson | Landline | Ameritech Michigan |
| 517-790 | Saginaw | Saginaw | Landline | Acd Telecom, Inc. Mi |
| 517-791 | Saginaw | Saginaw | Landline | Unknown |
| 517-792 | Saginaw | Saginaw | Landline | Acd Telecom, Inc. Mi |
| 517-793 | Saginaw | Saginaw | Landline | Acd Telecom, Inc. Mi |
| 517-794 | Fenwick | Montcalm | Landline | American Messaging (am), Inc. |
| 517-795 | Jackson | Jackson | Cell Phone | Nextel Communications, Inc. |
| 517-796 | Jackson | Jackson | Landline | Ameritech Michigan |
| 517-797 | Saginaw | Saginaw | Landline | Long Distance Of Michigan,... |
| 517-799 | Saginaw | Saginaw | Landline | Unknown |
| 517-803 | Lansing | Ingham | Landline | Level 3 Communications, Llc... |
| 517-812 | Jackson | Jackson | Cell Phone | Nextel Communications, Inc. |
| 517-815 | Tecumseh | Lenawee | Landline | Frontier North, Inc. Mi |
| 517-816 | Lansing | Eaton | Landline | Onvoy, Inc. Mi |
| 517-817 | Jackson | Jackson | Landline | Ameritech Michigan |
| 517-819 | Lansing | Ingham | Cell Phone | Nextel Communications, Inc. |
| 517-821 | Roscommon | Roscommon | Landline | Unknown |
| 517-823 | Vassar | Tuscola | Landline | Unknown |
| 517-826 | Jonesville | Hillsdale | Landline | Level 3 Communications, Llc... |
| 517-827 | Lansing | Ingham | Landline | Phone Michigan |
| 517-828 | Shepherd | Isabella | Landline | Local Exchange Carriers Of... |
| 517-832 | Midland | Midland | Landline | Unknown |
| 517-833 | Mason | Ingham | Landline | Level 3 Communications, Llc... |
| 517-835 | Midland | Midland | Landline | Unknown |
| 517-837 | Marysville | Saint Clair | Landline | Unknown |
| 517-840 | East Lansing | Ingham | Landline | Ameritech Michigan |
| 517-841 | Jackson | Jackson | Landline | Ameritech Michigan |
| 517-842 | Breckenridge | Gratiot | Landline | Unknown |
| 517-843 | Lansing | Ingham | Landline | Unknown |
| 517-845 | Chesaning | Saginaw | Landline | Unknown |
| 517-846 | Bentley | Bay | Landline | Unknown |
| 517-847 | Ashley | Gratiot | Landline | Unknown |
| 517-849 | Jonesville | Hillsdale | Landline | Ameritech Michigan |
| 517-851 | Stockbridge | Ingham | Landline | Frontier Midstates, Inc. Mi |
| 517-852 | Nashville | Barry | Landline | Ameritech Michigan |
| 517-853 | Lansing | Ingham | Landline | Tds Metrocom Inc. Mi |
| 517-856 | Caseville | Huron | Landline | Unknown |
| 517-857 | Springport | Jackson | Landline | Springport Telephone Co. |
| 517-858 | Bronson | Branch | Landline | Level 3 Communications, Llc... |
| 517-861 | Howell | Livingston | Cell Phone | Nextel Communications, Inc. |
| 517-862 | Lansing | Ingham | Cell Phone | Sprint Spectrum L.p. |
| 517-864 | Minden City | Sanilac | Landline | Unknown |
| 517-865 | Saint Charles | Saginaw | Landline | Unknown |
| 517-868 | Dimondale | Eaton | Landline | Level 3 Communications, Llc... |
| 517-869 | Allen | Hillsdale | Landline | Frontier Communications Of... |
| 517-871 | Millington | Tuscola | Landline | Unknown |
| 517-872 | Deford | Tuscola | Landline | Telnet Worldwide, Inc. |
| 517-873 | Prescott | Ogemaw | Landline | Local Exchange Carriers Of... |
| 517-875 | Ithaca | Gratiot | Landline | Unknown |
| 517-877 | Charlotte | Eaton | Cell Phone | Alltel Communications, Inc.... |
| 517-878 | Leslie | Ingham | Landline | Level 3 Communications, Llc... |
| 517-879 | Jackson | Jackson | Landline | Level 3 Communications, Llc... |
| 517-881 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-882 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-884 | East Lansing | Ingham | Landline | Ameritech Michigan |
| 517-885 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-886 | Lansing | Eaton | Landline | Ameritech Michigan |
| 517-887 | Lansing | Ingham | Landline | Ameritech Michigan |
| 517-888 | Southfield | Oakland | Landline | Unknown |
| 517-889 | Holt | Ingham | Landline | Talk America Inc. Mi |
| 517-890 | Jackson | Jackson | Landline | Acd Telecom, Inc. Mi |
| 517-893 | Bay City | Bay | Landline | Unknown |
| 517-894 | Essexville | Bay | Landline | Metro Pcs, Inc. |
| 517-895 | Bay City | Bay | Landline | Acd Telecom, Inc. Mi |
| 517-896 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-897 | Howell | Livingston | Cell Phone | Cellco Partnership Dba Veri... |
| 517-898 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-899 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-900 | Jerome | Hillsdale | Landline | Acd Telecom, Inc. Mi |
| 517-901 | Reading | Hillsdale | Landline | Charter Fiberlink Michiga... |
| 517-902 | Adrian | Lenawee | Cell Phone | Sprint Spectrum L.p. |
| 517-903 | Howell | Livingston | Landline | Acd Telecom, Inc. Mi |
| 517-905 | East Lansing | Ingham | Landline | Telnet Worldwide, Inc. |
| 517-906 | Holt | Ingham | Landline | Acd Telecom, Inc. Mi |
| 517-908 | Lansing | Ingham | Landline | Tds Metrocom Inc. Mi |
| 517-909 | East Lansing | Ingham | Landline | Acd Telecom, Inc. Mi |
| 517-913 | Okemos | Ingham | Landline | Telnet Worldwide, Inc. |
| 517-914 | Jackson | Jackson | Cell Phone | Omnipoint Communications Mi... |
| 517-915 | Fowlerville | Livingston | Landline | Acd Telecom, Inc. Mi |
| 517-916 | Jonesville | Hillsdale | Landline | Telnet Worldwide, Inc. |
| 517-917 | Jackson | Jackson | Cell Phone | Nextel Communications, Inc. |
| 517-918 | Onsted | Lenawee | Cell Phone | Omnipoint Communications Mi... |
| 517-919 | Laingsburg | Shiawassee | Cell Phone | New Cingular Wireless Pcs,... |
| 517-920 | Adrian | Lenawee | Landline | Telnet Worldwide, Inc. |
| 517-921 | Lansing | Ingham | Landline | Acd Telecom, Inc. Mi |
| 517-922 | Eaton Rapids | Eaton | Landline | Acd Telecom, Inc. Mi |
| 517-923 | Howell | Livingston | Landline | Acd Telecom, Inc. Mi |
| 517-924 | Coldwater | Branch | Landline | Charter Fiberlink Michiga... |
| 517-925 | Grand Ledge | Eaton | Landline | Acd Telecom, Inc. Mi |
| 517-926 | Jackson | Jackson | Landline | Acd Telecom, Inc. Mi |
| 517-927 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-929 | East Lansing | Ingham | Landline | Acd Telecom, Inc. Mi |
| 517-930 | Lansing | Ingham | Cell Phone | Cellco Partnership Dba Veri... |
| 517-933 | Okemos | Ingham | Landline | Lucre, Inc. |
| 517-936 | Jackson | Jackson | Cell Phone | Centennial Michiana License... |
| 517-937 | Jackson | Jackson | Cell Phone | Nextel Communications, Inc. |
| 517-938 | Brooklyn | Jackson | Landline | Acd Telecom, Inc. Mi |
| 517-939 | Gaylord | Otsego | Landline | Level 3 Communications, Llc... |
| 517-941 | Howell | Livingston | Landline | Acd Telecom, Inc. Mi |
| 517-942 | Lansing | Ingham | Landline | Acd Telecom, Inc. Mi |
| 517-944 | Grand Ledge | Eaton | Cell Phone | Omnipoint Communications Mi... |
| 517-945 | Jackson | Jackson | Landline | Phone Michigan |
| 517-947 | Dewitt | Clinton | Landline | Telnet Worldwide, Inc. |
| 517-948 | Mulliken | Eaton | Landline | Acd Telecom, Inc. Mi |
| 517-949 | Jonesville | Hillsdale | Landline | Acd Telecom, Inc. Mi |
| 517-953 | Lansing | Ingham | Landline | Acd Telecom, Inc. Mi |
| 517-954 | Okemos | Ingham | Landline | Bandwidth.com Clec, Llc Mi |
| 517-957 | Mason | Ingham | Landline | Acd Telecom, Inc. Mi |
| 517-960 | Jackson | Jackson | Landline | Ameritech Michigan |
| 517-962 | Jackson | Jackson | Landline | Tcg Detroit Mi |
| 517-964 | Battle Creek | Calhoun | Landline | Acd Telecom, Inc. Mi |
| 517-965 | Union City | Branch | Landline | Acd Telecom, Inc. Mi |
| 517-967 | Remus | Mecosta | Landline | Unknown |
| 517-968 | East Lansing | Ingham | Landline | Brooks Fiber Communications... |
| 517-969 | Mason | Ingham | Landline | Talk America Inc. Mi |
| 517-970 | Charlottesville | Charlottesville City | Landline | Acd Telecom, Inc. Mi |
| 517-972 | East Lansing | Ingham | Landline | Acd Telecom, Inc. Mi |
| 517-974 | Lansing | Ingham | Cell Phone | New Cingular Wireless Pcs,... |
| 517-975 | Lansing | Ingham | Landline | Talk America Inc. Mi |
| 517-977 | Lansing | Ingham | Landline | Comcast Phone Of Michigan,... |
| 517-978 | Mason | Ingham | Landline | Acd Telecom, Inc. Mi |
| 517-979 | Litchfield | Hillsdale | Landline | Acd Telecom, Inc. Mi |
| 517-980 | Dewitt | Clinton | Cell Phone | Omnipoint Communications Mi... |
| 517-983 | Vanderbilt | Otsego | Cell Phone | Cellco Partnership Dba Veri... |
| 517-984 | Webberville | Ingham | Landline | Acd Telecom, Inc. Mi |
| 517-985 | Stockbridge | Ingham | Landline | Acd Telecom, Inc. Mi |
| 517-989 | Jonesville | Hillsdale | Landline | Unknown |
| 517-990 | Jackson | Jackson | Landline | Tds Metrocom Inc. Mi |
| 517-991 | Howell | Livingston | Landline | Acd Telecom, Inc. Mi |
| 517-992 | Williamston | Ingham | Landline | Local Exchange Carriers Of... |
| 517-993 | Lansing | Ingham | Landline | Tcg Detroit Mi |
| 517-995 | Clinton | Lenawee | Landline | Acd Telecom, Inc. Mi |
| 517-996 | East Lansing | Ingham | Landline | Acd Telecom, Inc. Mi |
| 517-997 | Charlotte | Eaton | Landline | Acd Telecom, Inc. Mi |
| 517-998 | Jackson | Jackson | Landline | Acd Telecom, Inc. Mi |
| 517-999 | Lansing | Ingham | Landline | Acd Telecom, Inc. Mi |