Home » Residential » Customer Service » Service Documents Service Documents The following service documents are provided as reference to current industry tariffs, services changes, policies and responsibilities. These files may be removed at anytime. Adobe Acrobat Reader ® may be required to access file on this page. Catalogs Service Catalog Century Link Serving Area Resale Service Catalog Facilities Tariff 3 Service Catalog Frontier Serving Area Resale Service Catalog Tariff 6 Service Catalog TSC LD General Customer Rights & Responsibilities International Calling Rates Tariffs TSCCI Tariff 3 TSC LD Tariff 1 TSC Tariff 6 Middle Point Telephone Co Tariff 4 TSC Tariff No 1 – Basic Exchange