| 517-200 | Litchfield | Wireless | New Cingular Wireless |
| 517-201 | Leslie | Landline | Onvoy |
| 517-202 | Lansing | Wireless | Sprint Spectrum |
| 517-203 | Lansing | Landline | Michigan Bell Tel |
| 517-204 | Lansing | Wireless | Sprint Spectrum |
| 517-205 | Jackson | Landline | Michigan Bell Tel |
| 517-206 | Jackson | Wireless | Sprint Spectrum |
| 517-207 | Adrian | Landline | Telnet Worldwide |
| 517-208 | Britton | Landline | CenturyLink Communications |
| 517-209 | Lansing | Landline | Bandwidth.com |
| 517-210 | Lansing | Landline | Onvoy |
| 517-212 | Hillsdale | Wireless | Verizon |
| 517-213 | Charlotte | Landline | Level 3 Communications |
| 517-214 | Lansing | Landline | Sprint Spectrum |
| 517-215 | Adrian | Wireless | Sprint Spectrum |
| 517-216 | Lansing | Landline | Csc Wireless |
| 517-217 | Clinton | Landline | Tc3 Telecom |
| 517-218 | Clayton | Landline | Communications Corp. Of Mi |
| 517-219 | Fowlerville | Landline | Level 3 Communications |
| 517-220 | Lansing | Landline | CenturyLink Communications |
| 517-221 | Holt | Wireless | New Cingular Wireless |
| 517-222 | Dansville | Landline | Mcimetro Access Transmission Services |
| 517-223 | Fowlerville | Landline | Michigan Bell Tel |
| 517-224 | Potterville | Landline | Level 3 Communications |
| 517-225 | Howell | Wireless | New Cingular Wireless |
| 517-226 | Lansing | Wireless | American Messaging Services |
| 517-227 | Coldwater | Wireless | Verizon |
| 517-228 | Lansing | Landline | USA Mobility Wireless |
| 517-229 | Lansing | Landline | USA Mobility Wireless |
| 517-230 | Lansing | Wireless | Verizon |
| 517-231 | Charlotte | Wireless | Verizon |
| 517-232 | Lansing | Landline | USA Mobility Wireless |
| 517-233 | Eaton Rapids | Landline | Mcimetro Access Transmission Services |
| 517-234 | Howell | Wireless | New Cingular Wireless |
| 517-235 | Lansing | Landline | AT&T |
| 517-236 | Lansing | Landline | Verizon |
| 517-237 | Lansing | Landline | Teleport Communications America |
| 517-238 | Quincy | Landline | Frontier North |
| 517-239 | Lansing | Landline | Frontier North |
| 517-240 | Jackson | Wireless | Sprint Spectrum |
| 517-241 | Lansing | Landline | Michigan Bell Tel |
| 517-242 | Lansing | Wireless | Verizon |
| 517-243 | Lansing | Wireless | Verizon |
| 517-244 | Mason | Landline | Michigan Bell Tel |
| 517-245 | Fowlerville | Wireless | Verizon |
| 517-246 | Lansing | Landline | Peerless Network Of Michigan |
| 517-247 | Jackson | Landline | Teleport Communications America |
| 517-249 | Lansing | Wireless | New Cingular Wireless |
| 517-250 | Jackson | Wireless | New Cingular Wireless |
| 517-251 | Lansing | Wireless | American Messaging Services |
| 517-252 | Addison | Wireless | New Cingular Wireless |
| 517-253 | Lansing | Landline | Michigan Bell Tel |
| 517-254 | Waldron | Landline | Frontier Communications |
| 517-255 | Lansing | Wireless | American Messaging Services |
| 517-256 | Lansing | Wireless | Verizon |
| 517-257 | Jackson | Wireless | Verizon |
| 517-258 | Howell | Landline | Bandwidth.com |
| 517-259 | Lansing | Wireless | American Messaging Services |
| 517-260 | Adrian | Wireless | Verizon |
| 517-261 | Grand Ledge | Wireless | Omnipoint Communications Midwest Operations |
| 517-262 | Jackson | Wireless | Verizon |
| 517-263 | Adrian | Landline | Frontier North |
| 517-264 | Adrian | Landline | Frontier North |
| 517-265 | Adrian | Landline | Frontier North |
| 517-266 | Adrian | Landline | Frontier North |
| 517-267 | Lansing | Landline | Michigan Bell Tel |
| 517-268 | Holt | Landline | Tds Metrocom |
| 517-270 | Adrian | Landline | New Cingular Wireless |
| 517-271 | Nashville | Landline | Onvoy |
| 517-272 | Lansing | Landline | Michigan Bell Tel |
| 517-273 | Howell | Landline | Teleport Communications America |
| 517-275 | Lansing | Landline | Teleport Communications America |
| 517-277 | Dewitt | Landline | Westphalia Broadband |
| 517-278 | Coldwater | Landline | Frontier North |
| 517-279 | Coldwater | Landline | Frontier North |
| 517-280 | Adrian | Wireless | Omnipoint Communications Midwest Operations |
| 517-281 | Lansing | Wireless | Verizon |
| 517-282 | Lansing | Wireless | Verizon |
| 517-283 | Reading | Landline | Frontier North |
| 517-284 | Lansing | Landline | Michigan Bell Tel |
| 517-285 | Lansing | Wireless | Verizon |
| 517-286 | Waldron | Landline | Waldron Tel. |
| 517-287 | North Adams | Landline | Frontier Communications |
| 517-288 | Sunfield | Wireless | New Cingular Wireless |
| 517-289 | Lansing | Landline | Intrado Communications |
| 517-290 | Lansing | Wireless | Verizon |
| 517-292 | Howell | Landline | Teleport Communications America |
| 517-294 | Fowlerville | Wireless | Verizon |
| 517-295 | Howell | Landline | Bandwidth.com |
| 517-296 | Montgomery | Landline | Frontier Communications |
| 517-299 | Lansing | Wireless | American Messaging Services |
| 517-300 | Onsted | Landline | Onvoy |
| 517-301 | Tecumseh | Landline | New Cingular Wireless |
| 517-303 | Lansing | Wireless | Omnipoint Communications Midwest Operations |
| 517-304 | Howell | Wireless | New Cingular Wireless |
| 517-305 | Clarklake | Landline | Level 3 Communications |
| 517-306 | Hudson | Landline | New Cingular Wireless |
| 517-307 | Adrian | Wireless | American Messaging Services |
| 517-308 | Lansing | Landline | Mcimetro Access Transmission Services |
| 517-309 | Coldwater | Landline | USA Mobility Wireless |
| 517-312 | Adrian | Landline | Frontier North |
| 517-315 | Jackson | Wireless | New Cingular Wireless |
| 517-316 | Lansing | Landline | Michigan Bell Tel |
| 517-317 | Coldwater | Landline | New Cingular Wireless |
| 517-318 | Lansing | Landline | Mcimetro Access Transmission Services |
| 517-319 | Lansing | Landline | Mcimetro Access Transmission Services |
| 517-320 | Jackson | Wireless | Verizon |
| 517-321 | Lansing | Landline | Michigan Bell Tel |
| 517-322 | Lansing | Landline | Michigan Bell Tel |
| 517-323 | Lansing | Landline | Michigan Bell Tel |
| 517-324 | Lansing | Landline | Michigan Bell Tel |
| 517-325 | Lansing | Landline | Michigan Bell Tel |
| 517-327 | Lansing | Landline | Michigan Bell Tel |
| 517-329 | Lansing | Landline | Voip Innovations |
| 517-330 | Litchfield | Landline | Telnet Worldwide |
| 517-331 | Lansing | Wireless | Verizon |
| 517-332 | Lansing | Landline | Michigan Bell Tel |
| 517-333 | Lansing | Landline | Michigan Bell Tel |
| 517-334 | Lansing | Landline | Michigan Bell Tel |
| 517-335 | Lansing | Landline | Michigan Bell Tel |
| 517-336 | Lansing | Landline | Michigan Bell Tel |
| 517-337 | Lansing | Landline | Michigan Bell Tel |
| 517-338 | Howell | Landline | XO Communications |
| 517-339 | Haslett | Landline | Michigan Bell Tel |
| 517-340 | Lansing | Landline | USA Mobility Wireless |
| 517-341 | Lansing | Landline | USA Mobility Wireless |
| 517-342 | Lansing | Landline | Michigan Bell Tel |
| 517-343 | Albion | Landline | Sigecom |
| 517-345 | Lansing | Landline | Mcimetro Access Transmission Services |
| 517-346 | Lansing | Landline | Michigan Bell Tel |
| 517-347 | Okemos | Landline | Michigan Bell Tel |
| 517-348 | Lansing | Landline | Onvoy |
| 517-349 | Okemos | Landline | Michigan Bell Tel |
| 517-351 | Lansing | Landline | Michigan Bell Tel |
| 517-353 | Lansing | Landline | Michigan Bell Tel |
| 517-355 | Lansing | Landline | Michigan Bell Tel |
| 517-356 | Lansing | Landline | Fractel |
| 517-357 | Reading | Landline | Frontier Communications |
| 517-358 | Jackson | Wireless | Sprint Spectrum |
| 517-359 | Lansing | Wireless | American Messaging Services |
| 517-360 | Lansing | Wireless | American Messaging Services |
| 517-361 | Hillsdale | Wireless | American Messaging Services |
| 517-363 | Lansing | Landline | Michigan Bell Tel |
| 517-364 | Lansing | Landline | Michigan Bell Tel |
| 517-366 | Adrian | Wireless | Sprint Spectrum |
| 517-367 | Lansing | Landline | Michigan Bell Tel |
| 517-368 | Reading | Landline | Frontier Communications |
| 517-369 | Bronson | Landline | Frontier North |
| 517-371 | Lansing | Landline | Michigan Bell Tel |
| 517-372 | Lansing | Landline | Michigan Bell Tel |
| 517-373 | Lansing | Landline | Michigan Bell Tel |
| 517-374 | Lansing | Landline | Michigan Bell Tel |
| 517-375 | Fowlerville | Wireless | Verizon |
| 517-376 | Howell | Landline | Comcast Ip Phone |
| 517-377 | Lansing | Landline | Michigan Bell Tel |
| 517-381 | Okemos | Landline | Michigan Bell Tel |
| 517-383 | Pittsford | Landline | Frontier Communications |
| 517-386 | Eaton Rapids | Landline | Mcimetro Access Transmission Services |
| 517-388 | Lansing | Wireless | Verizon |
| 517-390 | Jackson | Wireless | American Messaging Services |
| 517-391 | Lansing | Landline | AT&T |
| 517-392 | Jackson | Landline | AT&T |
| 517-393 | Lansing | Landline | Michigan Bell Tel |
| 517-394 | Lansing | Landline | Michigan Bell Tel |
| 517-395 | Jackson | Wireless | Verizon |
| 517-398 | Hillsdale | Wireless | New Cingular Wireless |
| 517-400 | Lansing | Wireless | Onvoy Spectrum |
| 517-401 | Morenci | Landline | New Cingular Wireless |
| 517-402 | Lansing | Wireless | Omnipoint Communications Midwest Operations |
| 517-403 | Adrian | Wireless | Sprint Spectrum |
| 517-404 | Howell | Wireless | Sprint Spectrum |
| 517-406 | Albion | Wireless | American Messaging Services |
| 517-407 | Jonesville | Wireless | American Messaging Services |
| 517-408 | Dimondale | Landline | Comcast Ip Phone |
| 517-409 | Blissfield | Landline | New Cingular Wireless |
| 517-410 | Lansing | Landline | Sprint Spectrum |
| 517-412 | Lansing | Landline | Teleport Communications America |
| 517-414 | Jackson | Landline | Sprint Spectrum |
| 517-416 | Jackson | Wireless | Verizon |
| 517-417 | Adrian | Landline | Tc3 Telecom |
| 517-418 | Homer | Wireless | New Cingular Wireless |
| 517-420 | Lansing | Wireless | Verizon |
| 517-423 | Tecumseh | Landline | Frontier North |
| 517-424 | Tecumseh | Landline | Frontier North |
| 517-425 | Jackson | Wireless | Verizon |
| 517-428 | Fowlerville | Wireless | Omnipoint Communications Midwest Operations |
| 517-429 | Hudson | Landline | CenturyLink Communications |
| 517-431 | Tipton | Landline | Frontier North |
| 517-432 | Lansing | Landline | Michigan Bell Tel |
| 517-435 | Jackson | Wireless | Verizon |
| 517-436 | Sand Creek | Landline | Sand Creek Tel. |
| 517-437 | Hillsdale | Landline | Michigan Bell Tel |
| 517-438 | Adrian | Wireless | Verizon |
| 517-439 | Hillsdale | Landline | Michigan Bell Tel |
| 517-442 | Adrian | Landline | New Cingular Wireless |
| 517-443 | Palmyra | Landline | Ogden Tel. |
| 517-444 | Charlotte | Landline | Mcimetro Access Transmission Services |
| 517-445 | Clayton | Landline | Communications Corp. Of Mi |
| 517-446 | Deerfield | Landline | Deerfield Farmers Telephone Company |
| 517-447 | Deerfield | Landline | Deerfield Farmers Tel. |
| 517-448 | Hudson | Landline | Frontier North |
| 517-449 | Lansing | Wireless | Verizon |
| 517-451 | Britton | Landline | Frontier North |
| 517-455 | Lansing | Landline | Talk America Inc. |
| 517-456 | Clinton | Landline | Frontier North |
| 517-457 | Tipton | Landline | Peerless Network Of Michigan |
| 517-458 | Morenci | Landline | Frontier Midstates |
| 517-459 | Parma | Landline | Level 3 Communications |
| 517-462 | Coldwater | Wireless | Verizon |
| 517-464 | Jackson | Wireless | American Messaging Services |
| 517-465 | Albion | Landline | AT&T |
| 517-466 | Dansville | Landline | Mcimetro Access Transmission Services |
| 517-467 | Onsted | Landline | Frontier Communications |
| 517-468 | Williamston | Landline | Shiawassee Tel. |
| 517-470 | Tecumseh | Landline | Tc3 Telecom |
| 517-474 | Jackson | Wireless | New Cingular Wireless |
| 517-477 | Holt | Wireless | New Cingular Wireless |
| 517-480 | Stockbridge | Wireless | New Cingular Wireless |
| 517-481 | Lansing | Landline | Michigan Bell Tel |
| 517-482 | Lansing | Landline | Michigan Bell Tel |
| 517-483 | Lansing | Landline | Michigan Bell Tel |
| 517-484 | Lansing | Landline | Michigan Bell Tel |
| 517-485 | Lansing | Landline | Michigan Bell Tel |
| 517-486 | Blissfield | Landline | Frontier North |
| 517-487 | Lansing | Landline | Michigan Bell Tel |
| 517-488 | Lansing | Landline | Long Distance Of Michigan |
| 517-489 | Lansing | Landline | Onvoy |
| 517-490 | Lansing | Wireless | Sprint Spectrum |
| 517-492 | Lansing | Landline | Onvoy |
| 517-494 | Albion | Wireless | New Cingular Wireless |
| 517-499 | Jackson | Wireless | Verizon |
| 517-500 | Sunfield | Landline | Onvoy |
| 517-502 | Hudson | Landline | Tc3 Telecom |
| 517-504 | Morenci | Landline | Tc3 Telecom |
| 517-505 | Lansing | Wireless | Omnipoint Communications Midwest Operations |
| 517-507 | Lansing | Landline | Level 3 Communications |
| 517-512 | Lansing | Wireless | Verizon |
| 517-513 | Jackson | Wireless | Verizon |
| 517-515 | Lansing | Wireless | New Cingular Wireless |
| 517-518 | Howell | Wireless | New Cingular Wireless |
| 517-519 | Hudson | Landline | Telnet Worldwide |
| 517-521 | Webberville | Landline | Frontier Midstates |
| 517-522 | Grass Lake | Landline | Frontier North |
| 517-523 | Osseo | Landline | Frontier Communications |
| 517-524 | Concord | Landline | Frontier Communications |
| 517-525 | Mason | Wireless | Verizon |
| 517-526 | Portland | Wireless | Verizon |
| 517-527 | Hillsdale | Wireless | American Messaging Services |
| 517-528 | Lansing | Wireless | Sprint Spectrum |
| 517-529 | Clarklake | Landline | Michigan Bell Tel |
| 517-531 | Parma | Landline | Frontier Midstates |
| 517-533 | Hillsdale | Landline | USA Mobility Wireless |
| 517-534 | Jackson | Landline | USA Mobility Wireless |
| 517-536 | Michigan Center | Landline | Michigan Bell Tel |
| 517-539 | Jackson | Wireless | Verizon |
| 517-540 | Howell | Landline | Michigan Bell Tel |
| 517-541 | Charlotte | Landline | Michigan Bell Tel |
| 517-542 | Litchfield | Landline | CenturyLink |
| 517-543 | Charlotte | Landline | Michigan Bell Tel |
| 517-544 | Jackson | Landline | 123.net |
| 517-545 | Howell | Landline | Michigan Bell Tel |
| 517-546 | Howell | Landline | Michigan Bell Tel |
| 517-547 | Addison | Landline | Frontier Midstates |
| 517-548 | Howell | Landline | Michigan Bell Tel |
| 517-549 | Litchfield | Landline | CenturyLink |
| 517-550 | Lansing | Landline | Onvoy |
| 517-552 | Howell | Landline | Michigan Bell Tel |
| 517-554 | Albion | Wireless | Verizon |
| 517-563 | Hanover | Landline | Frontier Communications |
| 517-564 | Adrian | Landline | USA Mobility Wireless |
| 517-565 | Stockbridge | Landline | Frontier Midstates |
| 517-566 | Sunfield | Landline | CenturyLink |
| 517-567 | Waldron | Landline | Frontier Communications |
| 517-568 | Homer | Landline | Frontier Midstates |
| 517-569 | Rives Junction | Landline | Frontier Midstates |
| 517-571 | Howell | Landline | USA Mobility Wireless |
| 517-574 | Lansing | Landline | Clear Rate Communications |
| 517-575 | Lansing | Landline | Michigan Bell Tel |
| 517-577 | Adrian | Landline | Comcast Ip Phone |
| 517-579 | Howell | Landline | Level 3 Communications |
| 517-580 | Lansing | Wireless | Level 3 Communications |
| 517-581 | Jackson | Wireless | Verizon |
| 517-582 | Lansing | Wireless | Verizon |
| 517-583 | Tekonsha | Landline | Level 3 Communications |
| 517-584 | Albion | Landline | 123.net |
| 517-586 | Howell | Landline | Phone Michigan |
| 517-588 | Charlotte | Wireless | Sprint Spectrum |
| 517-589 | Leslie | Landline | Michigan Bell Tel |
| 517-592 | Brooklyn | Landline | Frontier Communications |
| 517-594 | Osseo | Landline | Acd Telecom |
| 517-595 | Waldron | Landline | Deerfield Farmers Telephone Company |
| 517-596 | Munith | Landline | Frontier Midstates |
| 517-597 | Sunfield | Landline | Acd Telecom |
| 517-599 | Lansing | Wireless | Verizon |
| 517-600 | Dimondale | Landline | Mcimetro Access Transmission Services |
| 517-602 | Howell | Landline | Michtel Communications |
| 517-604 | Mason | Wireless | Verizon |
| 517-605 | Adrian | Wireless | Sprint Spectrum |
| 517-606 | Blissfield | Landline | Tc3 Telecom |
| 517-607 | Hillsdale | Landline | Michigan Bell Tel |
| 517-609 | Jonesville | Landline | 123.net |
| 517-610 | Hillsdale | Wireless | Sprint Spectrum |
| 517-612 | Jackson | Landline | Sprint Spectrum |
| 517-614 | Lansing | Wireless | Verizon |
| 517-615 | Vermontville | Wireless | New Cingular Wireless |
| 517-616 | Dimondale | Landline | Ymax Communications |
| 517-617 | Coldwater | Landline | New Cingular Wireless |
| 517-618 | Howell | Landline | Level 3 Communications |
| 517-619 | Lansing | Landline | Teleport Communications America |
| 517-621 | Munith | Landline | Telnet Worldwide |
| 517-622 | Grand Ledge | Landline | Frontier North |
| 517-623 | Dansville | Landline | Michigan Bell Tel |
| 517-624 | Dewitt | Landline | Onvoy |
| 517-625 | Perry | Landline | Shiawassee Tel. |
| 517-626 | Grand Ledge | Landline | Frontier North |
| 517-627 | Grand Ledge | Landline | Frontier North |
| 517-628 | Onondaga | Landline | Frontier Midstates |
| 517-629 | Albion | Landline | Michigan Bell Tel |
| 517-630 | Albion | Landline | Michigan Bell Tel |
| 517-631 | Webberville | Landline | Telnet Worldwide |
| 517-632 | Albion | Wireless | American Messaging Services |
| 517-634 | Stockbridge | Landline | Telnet Worldwide |
| 517-636 | Lansing | Landline | Michigan Bell Tel |
| 517-639 | Quincy | Landline | Frontier North |
| 517-641 | Bath | Landline | Frontier North |
| 517-642 | Munith | Landline | 123.net |
| 517-643 | Lansing | Wireless | Verizon |
| 517-645 | Potterville | Landline | Michigan Bell Tel |
| 517-646 | Dimondale | Landline | Michigan Bell Tel |
| 517-647 | Portland | Landline | Michigan Bell Tel |
| 517-648 | Lansing | Wireless | Verizon |
| 517-649 | Mulliken | Landline | Michigan Bell Tel |
| 517-651 | Laingsburg | Landline | Frontier North |
| 517-652 | Charlotte | Landline | Sprint Spectrum |
| 517-653 | Burlington | Landline | Telnet Worldwide |
| 517-654 | Albion | Landline | Telnet Worldwide |
| 517-655 | Williamston | Landline | Frontier North |
| 517-657 | Lansing | Landline | Comcast Ip Phone |
| 517-658 | Reading | Landline | Telnet Worldwide |
| 517-659 | Addison | Landline | Telnet Worldwide |
| 517-662 | Adrian | Wireless | Verizon |
| 517-663 | Eaton Rapids | Landline | Michigan Bell Tel |
| 517-664 | Lansing | Landline | Michigan Bell Tel |
| 517-666 | Lansing | Landline | Onvoy |
| 517-667 | Charlotte | Wireless | Verizon |
| 517-668 | Dewitt | Landline | Frontier North |
| 517-669 | Dewitt | Landline | Frontier North |
| 517-671 | Tekonsha | Landline | Telnet Worldwide |
| 517-672 | Howell | Wireless | Sprint Spectrum |
| 517-673 | Adrian | Wireless | Sprint Spectrum |
| 517-675 | Perry | Landline | Shiawassee Tel. |
| 517-676 | Mason | Landline | Michigan Bell Tel |
| 517-677 | Coldwater | Wireless | Sprint Spectrum |
| 517-679 | Lansing | Landline | 123.net |
| 517-680 | Albion | Landline | Level 3 Communications |
| 517-682 | Blissfield | Landline | 123.net |
| 517-684 | Michigan Center | Landline | Acd Telecom |
| 517-686 | Albion | Landline | AT&T |
| 517-688 | Somerset Center | Landline | Frontier Communications |
| 517-689 | Hillsdale | Landline | Telnet Worldwide |
| 517-691 | Perry | Landline | Acd Telecom |
| 517-692 | Springport | Landline | Acd Telecom |
| 517-694 | Holt | Landline | Michigan Bell Tel |
| 517-695 | Waldron | Landline | Acd Telecom |
| 517-696 | Waldron | Landline | Acd Telecom |
| 517-697 | Perry | Landline | Daystarr |
| 517-698 | North Adams | Landline | Acd Telecom |
| 517-699 | Holt | Landline | Michigan Bell Tel |
| 517-701 | Clinton | Landline | 123.net |
| 517-702 | Lansing | Landline | Michigan Bell Tel |
| 517-703 | Lansing | Landline | Michigan Bell Tel |
| 517-705 | Burlington | Landline | Level 3 Communications |
| 517-706 | Okemos | Landline | Michigan Bell Tel |
| 517-708 | Lansing | Landline | Cynergycomm.net |
| 517-709 | Lansing | Landline | Mcimetro Access Transmission Services |
| 517-710 | Stockbridge | Landline | Telnet Worldwide |
| 517-712 | Lansing | Wireless | Sprint Spectrum |
| 517-714 | Burlington | Landline | Level 3 Communications |
| 517-715 | Fowlerville | Landline | Onvoy |
| 517-716 | Parma | Landline | Telnet Worldwide |
| 517-717 | Williamston | Landline | Telnet Worldwide |
| 517-719 | Lansing | Wireless | Sprint Spectrum |
| 517-721 | Lansing | Landline | Michigan Bell Tel |
| 517-722 | Mason | Landline | Mcimetro Access Transmission Services |
| 517-724 | Homer | Landline | Telnet Worldwide |
| 517-726 | Vermontville | Landline | Michigan Bell Tel |
| 517-727 | Charlotte | Landline | Telnet Worldwide |
| 517-728 | Tekonsha | Landline | Level 3 Communications |
| 517-730 | Lansing | Landline | Vonage America |
| 517-731 | Lansing | Landline | Level 3 Communications |
| 517-732 | Portland | Landline | 123.net |
| 517-736 | Coldwater | Landline | 123.net |
| 517-740 | Jackson | Wireless | Verizon |
| 517-741 | Union City | Landline | Frontier North |
| 517-742 | Holt | Landline | AT&T |
| 517-743 | Portland | Landline | Level 3 Communications |
| 517-745 | Jackson | Wireless | Verizon |
| 517-748 | Jackson | Landline | AT&T |
| 517-749 | Lansing | Wireless | Sprint Spectrum |
| 517-750 | Spring Arbor | Landline | Michigan Bell Tel |
| 517-753 | Coldwater | Landline | Telnet Worldwide |
| 517-755 | Lansing | Wireless | New Cingular Wireless |
| 517-756 | Union City | Landline | Level 3 Communications |
| 517-758 | Lansing | Landline | Fractel |
| 517-759 | Adrian | Wireless | Verizon |
| 517-760 | Nashville | Landline | Acd Telecom |
| 517-762 | Dansville | Landline | 123.net |
| 517-763 | Lansing | Landline | Michigan Bell Tel |
| 517-764 | Jackson | Landline | Michigan Bell Tel |
| 517-765 | Burlington | Landline | Frontier Midstates |
| 517-766 | Onondaga | Landline | Telnet Worldwide |
| 517-767 | Tekonsha | Landline | Frontier Midstates |
| 517-768 | Jackson | Landline | Michigan Bell Tel |
| 517-769 | Rives Junction | Landline | Michigan Bell Tel |
| 517-772 | Dansville | Landline | Telnet Worldwide |
| 517-774 | Montgomery | Landline | Level 3 Communications |
| 517-775 | Lansing | Wireless | New Cingular Wireless |
| 517-777 | Lansing | Landline | Onvoy |
| 517-780 | Jackson | Landline | Michigan Bell Tel |
| 517-781 | Coldwater | Landline | Level 3 Communications |
| 517-782 | Jackson | Landline | Michigan Bell Tel |
| 517-783 | Jackson | Landline | Michigan Bell Tel |
| 517-784 | Jackson | Landline | Michigan Bell Tel |
| 517-785 | Onondaga | Landline | 123.net |
| 517-786 | Charlotte | Landline | Fractel |
| 517-787 | Jackson | Landline | Michigan Bell Tel |
| 517-788 | Jackson | Landline | Michigan Bell Tel |
| 517-789 | Jackson | Landline | Michigan Bell Tel |
| 517-790 | Litchfield | Landline | Acd Telecom |
| 517-792 | Montgomery | Landline | Acd Telecom |
| 517-793 | Litchfield | Landline | Acd Telecom |
| 517-794 | Lansing | Wireless | American Messaging Services |
| 517-795 | Jackson | Wireless | Sprint Spectrum |
| 517-796 | Jackson | Landline | Michigan Bell Tel |
| 517-797 | Hillsdale | Landline | Long Distance Of Michigan |
| 517-798 | Howell | Wireless | Sprint Spectrum |
| 517-800 | Jackson | Landline | Fractel |
| 517-802 | Lansing | Landline | Michigan Bell Tel |
| 517-803 | Lansing | Landline | Level 3 Communications |
| 517-804 | Fowlerville | Wireless | American Messaging Services |
| 517-809 | Tecumseh | Landline | Telnet Worldwide |
| 517-812 | Jackson | Wireless | Sprint Spectrum |
| 517-813 | Blissfield | Landline | Telnet Worldwide |
| 517-815 | Tecumseh | Landline | Frontier North |
| 517-816 | Lansing | Landline | Onvoy |
| 517-817 | Jackson | Landline | Michigan Bell Tel |
| 517-819 | Lansing | Wireless | Sprint Spectrum |
| 517-825 | Hillsdale | Wireless | Verizon |
| 517-826 | Jonesville | Landline | Level 3 Communications |
| 517-827 | Lansing | Landline | Phone Michigan |
| 517-828 | Hillsdale | Landline | 123.net |
| 517-833 | Mason | Landline | Level 3 Communications |
| 517-836 | Eaton Rapids | Landline | Clear Rate Communications |
| 517-840 | Jackson | Landline | Michigan Bell Tel |
| 517-841 | Jackson | Landline | Michigan Bell Tel |
| 517-842 | Grass Lake | Landline | Fractel |
| 517-848 | Portland | Landline | Telnet Worldwide |
| 517-849 | Jonesville | Landline | Michigan Bell Tel |
| 517-851 | Stockbridge | Landline | Frontier Midstates |
| 517-852 | Nashville | Landline | Michigan Bell Tel |
| 517-853 | Lansing | Landline | Tds Metrocom |
| 517-855 | Lansing | Landline | Terra Nova Telecom Inc. |
| 517-857 | Springport | Landline | Springport Tel. |
| 517-858 | Bronson | Landline | Level 3 Communications |
| 517-861 | Howell | Wireless | Sprint Spectrum |
| 517-862 | Lansing | Wireless | Sprint Spectrum |
| 517-867 | Jackson | Landline | Clear Rate Communications |
| 517-868 | Lansing | Landline | Level 3 Communications |
| 517-869 | Allen | Landline | Frontier Communications |
| 517-872 | Rives Junction | Landline | Telnet Worldwide |
| 517-873 | Charlotte | Landline | 123.net |
| 517-876 | Holt | Landline | Mcimetro Access Transmission Services |
| 517-877 | Litchfield | Wireless | Verizon |
| 517-878 | Leslie | Landline | Level 3 Communications |
| 517-879 | Jackson | Landline | Level 3 Communications |
| 517-881 | Lansing | Wireless | Verizon |
| 517-882 | Lansing | Landline | Michigan Bell Tel |
| 517-883 | Mason | Landline | First Communications |
| 517-884 | Lansing | Landline | Michigan Bell Tel |
| 517-885 | Lansing | Landline | Michigan Bell Tel |
| 517-886 | Lansing | Landline | Michigan Bell Tel |
| 517-887 | Lansing | Landline | Michigan Bell Tel |
| 517-888 | Jackson | Landline | Onvoy |
| 517-889 | Holt | Landline | Talk America Inc. |
| 517-890 | Spring Arbor | Landline | Acd Telecom |
| 517-891 | Osseo | Landline | Acd Telecom |
| 517-894 | Lansing | Wireless | T-Mobile |
| 517-895 | Concord | Landline | Acd Telecom |
| 517-896 | Lansing | Wireless | Verizon |
| 517-897 | Lansing | Wireless | Verizon |
| 517-898 | Lansing | Wireless | Verizon |
| 517-899 | Lansing | Wireless | Verizon |
| 517-900 | Somerset Center | Landline | Acd Telecom |
| 517-901 | Reading | Landline | Charter Fiberlink |
| 517-902 | Adrian | Wireless | Sprint Spectrum |
| 517-903 | Bath | Landline | Acd Telecom |
| 517-905 | Jackson | Landline | Telnet Worldwide |
| 517-906 | Holt | Landline | Acd Telecom |
| 517-907 | Clarklake | Landline | Acd Telecom |
| 517-908 | Lansing | Landline | Tds Metrocom |
| 517-909 | Dansville | Landline | Acd Telecom |
| 517-910 | Onondaga | Landline | Level 3 Communications |
| 517-912 | Dimondale | Landline | Acd Telecom |
| 517-913 | Lansing | Landline | Telnet Worldwide |
| 517-914 | Jackson | Wireless | Omnipoint Communications Midwest Operations |
| 517-915 | Fowlerville | Landline | Acd Telecom |
| 517-916 | Jonesville | Landline | Telnet Worldwide |
| 517-917 | Jackson | Landline | Sprint Spectrum |
| 517-918 | Adrian | Wireless | Omnipoint Communications Midwest Operations |
| 517-919 | Laingsburg | Landline | New Cingular Wireless |
| 517-920 | Adrian | Landline | Telnet Worldwide |
| 517-921 | Addison | Landline | Acd Telecom |
| 517-922 | Eaton Rapids | Landline | Acd Telecom |
| 517-923 | Stockbridge | Landline | Acd Telecom |
| 517-924 | Coldwater | Landline | Charter Fiberlink |
| 517-925 | Grand Ledge | Landline | Acd Telecom |
| 517-926 | Grass Lake | Landline | Acd Telecom |
| 517-927 | Lansing | Wireless | Verizon |
| 517-928 | Mason | Wireless | Verizon |
| 517-929 | Homer | Landline | Acd Telecom |
| 517-930 | Lansing | Wireless | Verizon |
| 517-931 | Tekonsha | Landline | Lucre |
| 517-932 | Allen | Landline | Acd Telecom |
| 517-933 | Coldwater | Landline | Lucre |
| 517-936 | Jackson | Wireless | New Cingular Wireless |
| 517-937 | Jackson | Wireless | Sprint Spectrum |
| 517-938 | Brooklyn | Landline | Acd Telecom |
| 517-939 | Quincy | Landline | Level 3 Communications |
| 517-940 | Lansing | Landline | Rclec |
| 517-941 | Laingsburg | Landline | Acd Telecom |
| 517-942 | Leslie | Landline | Acd Telecom |
| 517-944 | Lansing | Wireless | Omnipoint Communications Midwest Operations |
| 517-945 | Jackson | Wireless | Phone Michigan |
| 517-946 | Reading | Landline | Acd Telecom |
| 517-947 | Howell | Landline | Telnet Worldwide |
| 517-948 | Mulliken | Landline | Acd Telecom |
| 517-949 | Dewitt | Landline | Acd Telecom |
| 517-953 | Munith | Landline | Acd Telecom |
| 517-954 | Holt | Landline | Verizon |
| 517-955 | Dansville | Landline | Cmc Telecom |
| 517-957 | Onondaga | Landline | Acd Telecom |
| 517-960 | Jackson | Landline | Michigan Bell Tel |
| 517-961 | Albion | Landline | Acd Telecom |
| 517-962 | Jackson | Landline | Teleport Communications America |
| 517-963 | Parma | Landline | Acd Telecom |
| 517-964 | Hillsdale | Landline | Acd Telecom |
| 517-965 | Potterville | Landline | Acd Telecom |
| 517-966 | Dimondale | Landline | Mcimetro Access Transmission Services |
| 517-968 | Dansville | Landline | Mcimetro Access Transmission Services |
| 517-969 | Mason | Landline | Talk America Inc. |
| 517-970 | Reading | Landline | Acd Telecom |
| 517-972 | Webberville | Landline | Acd Telecom |
| 517-973 | Charlotte | Wireless | American Messaging Services |
| 517-974 | Lansing | Landline | New Cingular Wireless |
| 517-975 | Lansing | Landline | Talk America Inc. |
| 517-977 | Lansing | Landline | Comcast Ip Phone |
| 517-978 | Eaton Rapids | Landline | Acd Telecom |
| 517-979 | Rives Junction | Landline | Acd Telecom |
| 517-980 | Lansing | Wireless | Omnipoint Communications Midwest Operations |
| 517-981 | Vermontville | Landline | Acd Telecom |
| 517-982 | Howell | Wireless | American Messaging Services |
| 517-983 | Charlotte | Wireless | Verizon |
| 517-984 | Webberville | Landline | Acd Telecom |
| 517-985 | Stockbridge | Landline | Acd Telecom |
| 517-990 | Jackson | Landline | Tds Metrocom |
| 517-991 | Reading | Landline | Acd Telecom |
| 517-992 | Williamston | Landline | 123.net |
| 517-993 | Lansing | Landline | Teleport Communications America |
| 517-994 | Portland | Landline | Acd Telecom |
| 517-995 | Jonesville | Landline | Acd Telecom |
| 517-996 | Williamston | Landline | Acd Telecom |
| 517-997 | Charlotte | Landline | Acd Telecom |
| 517-998 | Jackson | Landline | Acd Telecom |
| 517-999 | Lansing | Landline | Acd Telecom |