| Effective | Description | Package |
| 12/31/2023 | Change to service availability - Tariff No. 16 | IR-23-0001 |
| 12/01/2021 | Grandfather Ameritech OC-48 SONET Ring Service | IR-21-0001 |
| 10/01/2018 | Tariff Name Change | IR-18-0001 |
| 09/01/2016 | Elimination of Special Contract Services | IR-16-0001 |
| 09/05/2015 | Interconnection Agreements | IR-15-0001 |
| 10/20/2014 | Trademarks | IR-14-0002 |
| 09/05/2014 | Interconnection Agreements | IR-14-0001 |