Illinois Tariffs
- Interstate Tariffs (ICTC)
- Illinois State Tariffs (ICTC)
- Illinois Consolidated Telephone Company (ICTC) Tariff ICC No. 2, Illinois General Exchange Tariff
- Illinois Consolidated Telephone Company (ICTC) Tariff ICC No. 3, Illinois State Access Services Tariff
- Illinois Consolidated Telephone Company (ICTC) Tariff ICC No. 5, Illinois Competitive Local Services Tariff
