| Company | Now Known As | Street Address | Customer Contact No. |
|---|---|---|---|
| DCT Telecom Group, LLC | 1 Concourse Parkway NE Suite 600 Atlanta, GA 30328 | 888-404-4328 | |
| Delhi Telephone Company | 107 Main Street Delhi, NY 13753 | 607-746-1500 | |
| DeltaCom, LLC d/b/a EarthLink Business | 4005 North Rodney Parham Road Little Rock, AZ 72212 | 855-352-2731 | |
| Deposit Telephone Company, Inc. | 525 Junction Road Madison, WI 53717 | 888-225-5837 | |
| Development Authority of the North Country | 317Washington Street Watertown, NY 13601 | 315-661-3200 | |
| DFT Local Service Corporation d/b/a DFT Select One | 40 Temple St Fredonia, NY 14063 | 716-673-3000 | |
| Dial World Communications, LLC | 30591 Longhorn Drive Canyon Lake, CA 92587 | 855-800-4562 | |
| Discount Long Distance, LLC | 10161 Park Run Drive Suite 231 Las Vegas, NV 89145 | 952-401-0681 | |
| dishNET Wireline L.L.C. of New York | 9601 S. Meridian Blvd. Englewood, CO 800112 | 800-333-3473 | |
| DSCI, LLC | 5950 Canoga Avenue #350 Woodland Hills, CA 91367 | 877-487-8722 | |
| DTC Cable Inc. d/b/a Delhi Long Distance | 107 Main Street P.O. Box 271 Delhi, NY 13753 | 607-746-1500 | |
| Dunkirk and Fredonia Telephone Company | 40 Temple St PO BOX 209 Fredonia, NY 14063 | 716-673-3000 | |
| Dynalink Communications, Inc. | 927 McDonald Avenue Brooklyn, NY 11218 | 877-344-7441 | |