| Effective | Description | Package |
| 11/24/2025 | Update Grandfathering language - Access Lines and trunks, ISDN PRI, Centrex, and Central Office Services | IL-25-0032 |
| 11/01/2025 | RCF, DS1, DS3 and OC-n Point-To-Point Services Grandfathering | IL-25-0024 |
| 10/15/2025 | Grandfathering of Access Lines and trunks, ISDN PRI, Centrex, and Central Office Services | IL-25-0030 |