| Company | Now Known As | Street Address | Customer Contact No. |
|---|---|---|---|
| Cablevision Lightpath, LLC | 1111 Stewart Avenue Bethpage, NY 11714 | 866-611-3434 | |
| Cablevision of Brookhaven, Inc. | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| Cablevision of Ossining, L.P. | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| Cablevision of Rockland/Ramapo, LLC | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| Cablevision of Southern Westchester, Inc. | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| Cablevision of Wappingers Falls, Inc. | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| Cablevision of Warwick, LLC | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| Cablevision Systems Dutchess Corporation | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| Cablevision Systems East Hampton Corporation | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| Cablevision Systems Great Neck Corporation | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| Cablevision Systems Huntington Corporation | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| Cablevision Systems Islip Corporation | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| Cablevision Systems Long Island Corporation | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| Cablevision Systems New York City Corporation | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| Cablevision Systems Suffolk Corporation | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| Cablevision Systems Westchester Corporation | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| Cassadaga Telephone Corporation | 40 Temple St Fredonia, NY 14063-0209 | 716-673-3000 | |
| Castle Cable TV, Inc. | 26 South Main Street Hammond, NY 13646 | 315-324-5911 | |
| Catskill Mountain Cablevision, Inc. | 200 Jefferson Heights Catskill, NY 12414 | 800-342-5400 | |
| Catskills Communications, Inc. | 50 Swart Street Margaretville, NY 12455 | 845-586-1500 | |
| Catskills Communications, Inc. dba MTC Long Distance | 50 Swart Street Margaretville, NY 12455 | 845-586-1500 | |
| Cause Based Commerce Incorporated d/b/a The Sienna Group | 237 Beaver Road Suite A Walton, KY 41094 | 877-474-3662 | |
| CBTS Technology Solutions LLC | 221 E. 4th Street Cincinnati, OH 45201 | 513-841-6339 | |
| Central Telecom Long Distance, Inc. | 102 S Tejohn Street 11th Floor Colorado Springs, CO 80903 | 888-988-9818 | |
| CenturyLink Communications, LLC d/b/a Lumen Technologies Group | 100 CenturyLink Drive Monroe, LA 71203 | 877-453-8353 | |
| Certain Communications Corporation | 4101 East Louisiana Ave. Suite 111 Denver, CO 80246 | 310-933-6500 | |
| Champlain Telephone Company | 11118 Rte 9 Champlain, NY 12919 | 518-298-2411 | |
| Charter Fiberlink NY - CCO, LLC | 400 Washington Blvd - UT1 Stamford, CT 06902 | 833-694-9259 | |
| Chautauqua & Erie Telephone Corporation d/b/a Consolidated Communications | 2116 S 17th Street Mattoon, IL 61938 | 844-968-7224 | |
| Chazy and Westport Telephone Corporation | 2 Champlain Ave. Westport, NY 12993 | 518-846-8787 | |
| Choice One Communications of New York, Inc. d/b/a EarthLink Business | Choice One Communications of New York, Inc. | 4005 North Rodney Parham Road Little Rock, AR 72212 | 855-352-2731 |
| Cincinnati Bell Extended Territories LLC d/b/a altafiber connected services | 221 E. 4th Street Cincinnati, OH 45202 | 888-783-2506 | |
| Citizens Cablevision, Inc. | 26 South Main Street Hammond, NY 13646 | 315-324-5911 | |
| Citizens Long Distance, Inc. | 26 South Main Street Hammond, NY 13646 | 315-324-5911 | |
| Citizens Telecommunications Company of New York, Inc. d/b/a Frontier Communications of New York | 1919 McKinney Ave Dallas, TX 75201 | 800-921-8101 | |
| Citizens Telephone Company of Hammond New York, Inc. | 26 South Main Street Hammond, NY 13646 | 315-324-5911 | |
| Clarity Fiber Solutions, LLC | 3120 Fredrick Road Suite E Opelika, AL 36801 | 850-527-1180 | |
| Clear Rate Communications, LLC | 2600 West Big Beaver Road, Suite 450 Troy, MI 48084 | 248-556-9525 | |
| Cleareon Fiber Networks, LLC | Annex Fiber Inc. | 100 William St. 3rd Floor New York, NY 10038 | 877-472-6444 |
| Cogeco US Enterprise, LLC d/b/a Breezeline | 3 Batterymarch Park Suite 200 Quincy, MA 02169 | 617-786-8800 | |
| Community Cable Corporation d/b/a North Penn Video | 34 Main Street Prattsburgh, NY 14873 | 607-522-6373 | |
| Comtech 21, LLC | 10 Research Parkway Suite 100 Wallingford, CT 06492 | 877-312-5564 | |
| Consumer Telcom, Inc. | 170 S Green Valley Pkwy Suite 300 Henderson, NV 89012 | 800-872-3811 | |
| Conversent Communications of New York, LLC d/b/a EarthLink Business | Conversent Communications of New York, LLC. | 4005 North Rodney Parham Road Little Rock, AR 72212 | 855-352-2731 |
| Cooperative Communications, Inc. d/b/a CPV Communications | 412 Washington Ave Belleville, NJ 07109 | 973-759-8100 | |
| County of Madison | 138 North Court Street Wampsville, NY 13163 | 315-366-2498 | |
| Crexendo Business Solutions, Inc. | 1615 S. 52nd Street Tempe, AZ 85281 | 866-621-6111 | |
| Crosslake Fiber USA LP | 717 Fifth Ave Floor 12A New York, NY 10022 | 289-715-2520 | |
| Crown Castle Fiber LLC | 2000 Corporate Dr Canonsburg, PA 15317 | 877-486-9377 | |
| Crown Castle NG East LLC | 2000 Corporate Dr Canonsburg, PA 15317 | 877-486-9377 | |
| Crown Point Network Technologies, Inc. d/b/a Bridge Point Communication | 46 Porter Mill Rd Crown Point, NY 12928 | 518-558-1558 | |
| Crown Point Telephone Corporation | 46 Porter Mill Rd Crown Point, NY 12928 | 518-597-3300 | |
| CSC Acquisition-MA, Inc. | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| CSC Acquisition-NY, Inc. | 1 Court Square West 49th Floor Long Island City, NY 11101 | 888-276-5255 | |
| CTC Communications Corp. d/b/a EarthLink Business | CTC Communications Corp. | 4005 North Rodney Parham Road Little Rock, AR 72212 | 855-352-2731 |
| CTC LD, Inc. | 11118 Rte 9 Champlain, NY 12919 | 518-298-2411 | |
| Custom Network Solutions, Inc. | 210 Route 4 East Suite 201 Paramus, NJ 07652 | 800-809-0663 | |
| Custom TeleConnect, Inc. | 6242 West Desert Inn Road Las Vegas, NV 89146 | 800-672-9080 | |
| Custom Tel, LLC | 694 South Ogden St. Buffalo, NY 14206 | 800-960-2159 | |