December 1998
| U-11849 | U.S. Xchange of Michigan, L.L.C. (petition) | 12/21/1998 |
| U-11827 | MediaOne Telecommunications of Michigan, Inc. (license) | 12/21/1998 |
| U-11809 | United States Telecommunications, Inc., d/b/a Tel Com Plus (license) | 12/21/1998 |
| U-11787 | DIECA Communications, Inc. (license) | 12/21/1998 |
| U-11775 | Michtel, Inc. and Ameritech Michigan (interconnection) | 12/21/1998 |
| U-11736 | Terry Ballinger v Ameritech Michigan and AT&T | 12/21/1998 |
| U-11700 | Sterling International Funding, Inc., d/b/a Reconex (license) | 12/21/1998 |
| U-11784 | Allendale Telephone and GTE North and Contel of the South, Inc. d/b/a GTE Systems of Michigan (interconnection) | 12/7/1998 |
| U-11761 | Karen and Wilson Rook v GTE North Incorporated | 12/7/1998 |
| U-11745 | Debbie Mathers v Ameritech Michigan | 12/7/1998 |
| U-11735 | BRE Communications, L.L.C., d/b/a Phone Michigan v Ameritech Michigan | 12/7/1998 |
| U-11580 | GTE North Incorporated (interconnection) | 12/7/1998 |
November 1998
| U-11759 | AT&T Communications of Michigan, Inc., v GTE North Incorporated and Contel of the South, Inc., d/b/a GTE Systems of Michigan (leave to appeal) | 11/18/1998 |
| U-11755 | Mid-American Telephone Company (license) | 11/18/1998 |
| U-11660 | AT&T Communications of Michigan v Ameritech Michigan | 11/5/1998 |
| U-11832 | Commission's Own Motion (TSLRIC study/GTE North Incorporated) | 11/5/1998 |
| U-11831 | Commission's Own Motion (TSLRIC study/Ameritech Michigan) | 11/5/1998 |
| U-11768 | U S WEST Interprise America, Inc. and Ameritech Michigan (interconnection) | 11/5/1998 |
| U-11758 | Dakota Services, Ltd. (license) | 11/5/1998 |
| U-11749 | U S WEST Interprise America, Inc. (license) | 11/5/1998 |
| U-11747 | Ameritech Michigan (rate restructuring) | 11/5/1998 |
| U-11551 | BRE Communications (interconnection) | 11/5/1998 |
| U-11525 | Commission's Own Motion (investigation) | 11/5/1998 |
| U-11440 | GTE Communications Corporation (rehearing) | 11/5/1998 |
| U-11367 | Ameritech Michigan/GTE North Incorporated (withdrawal of toll service) | 11/5/1998 |
October 1998
| U-11744 | NOW Communications, Inc. (license) | 10/26/1998 |
| U-11738 | Group Long Distance, Inc. (license) | 10/26/1998 |
| U-11620 | Centennial Cellular Corp. v Ameritech | 10/26/1998 |
| U-11660 | AT&T v Ameritech | 10/26/1998 |
| U-11778 | Ameritech Michigan, (reciprocal compensation) | 10/12/1998 |
| U-11732 | Brian and Mollie Beaver, d/b/a Internet Information Services v Ameritech Michigan | 10/12/1998 |
| U-11730 | MichTel, Inc., (license), | 10/12/1998 |
| U-11727 | NorthPoint Communications, Inc., (license) | 10/12/1998 |
| U-11550 | Ameritech Michigan, (motion for stay) | 10/12/1998 |
| U-11654 | BRE Communications, L.L.C. v Ameritech Michigan | 10/2/1998 |
September 1998
| U-11739 | Ameritech Michigan and MediaOne (interconnection) | 9/23/1998 |
| U-11725 | ACI Corporation, d/b/a Accelerated Connections, Inc. (license) | 9/23/1998 |
| U-11720 | Baraga Telephone Company (license) | 9/23/1998 |
| U-11715 | Focal Communications Corp. of Michigan (license) | 9/23/1998 |
| U-11757 | Commission's Own Motion (anti-slamming) | 9/23/1998 |
| U-11717 | Suretel, Inc. (license) | 9/11/1998 |
| U-11705 | UniDial Communications, Inc. (license) | 9/11/1998 |
| U-11700 | Sterling International Fundraising, Inc., d/b/a Reconex (license) | 9/11/1998 |
| U-11660 | AT&T Communications of Michigan, Inc. v Ameritech Michigan (leave to appeal) | 9/11/1998 |
August 1998
| U-11718 | Teligent, Inc. and Ameritech Michigan (interconnection) | 8/27/1998 |
| U-11701 | Winstar Wireless of Michigan Incorporated and GTE North Incorporated and Contel of the South, Inc. (interconnection) | 8/27/1998 |
| U-11757 | Commission's Own Motion (notice) | 8/20/1998 |
| U-11639 | Raymond Cochran v Ameritech Michigan | 8/20/1998 |
| U-11620 | Centennial Cellular v Ameritech | 8/5/1998 |
July 1998
| U-11704 | Level 3 Communications, L.L.C. and Ameritech (interconnection) | 7/24/1998 |
| U-11671 | Ameritech v AT&T | 7/24/1998 |
| U-11668 | NEXTLINK Michigan, Inc. (license) | 7/13/1998 |
| U-11650 | The City of Coldwater Telecommunications Utility Board of Public Utilities (license) | 7/13/1998 |
| U-11580 | GTE North Incorporated (show cause) | 7/13/1998 |
June 1998
| U-11691 | GTE North Incorporated (interconnection) | 6/26/1998 |
| U-11664 | GTE North Incorporated (cost study) | 6/26/1998 |
| U-11524 | MPSC v Nationwide Communications, Inc. 6/26/1998
|
6/26/1998 |
| U-11280 | Ameritech Michigan (rehearing) | 6/26/1998 |
| U-11583 | MCImetro Access Transmission Services, Inc. v Ameritech Michigan | 6/3/1998 |
| U-11666 | Chapin Telephone Company (restructuring) | 6/2/1998 |
| U-11660 | AT&T v Ameritech Michigan | 6/2/1998 |
May 1998
| U-11655 | Gary Priemer v Ameritech | 5/15/1998 |
| U-11625 | Consumers Energy (certificate of public convenience & necessity) | 5/11/1998 |
| U-11665 | Nextel West Corporation and GTE North Incorporated and Contel of the South, Inc. (interconnection) | 5/11/1998 |
| U-11650 | The City of Coldwater Telecommunications Utility of the Board of Public Utilities (leave to appeal) | 5/11/1998 |
| U-11640 | Level 3 Communications, LLC (license) | 5/11/1998 |
| U-11635 | Ameritech Michigan (cost study) | 5/11/1998 |
| U-11633 | U.S. Telco, Inc. (license) | 5/11/1998 |
| U-11574 | Ameritech Michigan (interconnection) | 5/11/1998 |
| U-11550 | MCI Telecommunications Corporation v Ameritech Michigan | 5/11/1998 |
| U-11526 | Michiana Supply, Inc. v Ameritech Michigan | 5/11/1998 |
| U-11281 | GTE North Incorporated (rehearing) | 5/11/1998 |
April 1998
| U-11524 | - Nationwide Communications, Inc. (leave to appeal) - | 4/28/1998 |
| U-11672 | - Universal TV & VCR Repair, Inc. v Ameritech Michigan - | 4/28/1998 |
| U-11634 | - Ameritech Michigan (MRC surcharge) - | 4/28/1998 |
| U-11632 | - Lake Huron Cellular Corporation and Ameritech Michigan (interconnection) - | 4/28/1998 |
| U-11628 | - Gilro Cellular Corporation, d/b/a Cellular One of Upper Peninsula, and Ameritech Michigan (interconnection), | 4/28/1998 |
| U-11627 | Ameritech Michigan and GTE North Incorporated (license) | 4/14/1998 |
| U-11582 | James and Evelyn DeNike v Ameritech Michigan | 4/14/1998 |
March 1998
| U-11507 | The Michigan Cable Telecommunications Assoc. v Ameritech Michigan | 3/24/1998 |
| U-11151 | AT&T Communications of Michigan, Inc./Ameritech Michigan (interconnection) | 3/24/1998 |
| U-11641 | Ace Telephone et al. (restructuring of rates) | 3/20/1998 |
| U-11580 | GTE North Incorporated (interconnection) | 3/20/1998 |
| U-11596 | LCI International Telecom. Corp, (interconnection agreement) | 3/10/1998 |
| U-11595 | Metronet-Telecom, Inc., (license) | 3/10/1998 |
February 1998
| U-11619 | KMC Telecom, Inc. and Ameritech Michigan (interconnection | 2/25/1998 |
| U-11618 | US Xchange L.L.C. and Ameritech Michigan (interconnection) | 2/25/1998 |
| U-11611 | Douglas A. Fergusson v Ameritech Michigan | 2/25/1998 |
| U-11606 | Ameritech Michigan and Centennial Cellular Corp. (interconnection) | 2/25/1998 |
| U-11603 | Ameritech Michigan and NPI Wireless (interconnection) | 2/25/1998 |
| U-11592 | Brooks Fiber Communications (eligible telecommunications carrier) | 2/25/1998 |
| U-11281 | GTE North Incorporated (cost study) | 2/25/1998 |
| U-11410 | Michigan Pay Telephone Association (rehearing) | 2/25/1998 |
| U-11338 | Polycom America, Ltd. (license) | 2/25/1998 |
| U-11151 | AT&T Communications of Michigan, Inc. and Ameritech Michigan (interconnection) | 2/25/1998 |
January 1998
| U-11178 | et al. Brooks Fiber Commun. of Michigan | 1/28/1998 |
| U-11573 | Ameritech Michigan (cost study) | 1/28/1998 |
| U-11552 | Ameritech Michigan and GTE North Incorp. (license amendment) | 1/28/1998 |
| U-11551 | BRE Communications and GTE North Incorp (interconnection) | 1/28/1998 |
| U-11482 | James L. Richardson v Ameritech Michigan and LCI International | 1/28/1998 |
| U-11448 | Michigan Exchange Carriers Assoc., Inc. (cost studies) | 1/28/1998 |
| U-11446 | Ameritech Michigan v Ace Telephone et al. | 1/28/1998 |
| U-11280 | Ameritech Michigan (rehearing) | 1/28/1998 |
| U-11525 | Commission's Own Motion (leave to appeal) | 1/8/1998 |
| U-11561 | Ameritech Cellular Services, and GTE North Incorporated and Contel of the South, Inc. (interconnection) | 1/8/1998 |
| U-11549 | James A. Cosgrove v GTE North Incorporated | 1/8/1998 |
| U-11344 | Airtouch Cellular, Inc. and GTE North Incorporated (interconnection) | 1/8/1998 |