| Company | Now Known As | Street Address | Customer Contact No. |
|---|---|---|---|
| Fiber Connect LLC | P.O Box 1512 Madison, VA 22727 | 877-434-2372 | |
| Fibertech Facilities Corp. | 2000 Corporate Dr. Canonsburg, PA 15317 | 877-486-9377 | |
| Finger Lakes Communications Group Inc. | 75 Main Street Phelps, NY 14532 | 866-353-7209 | |
| First Choice Technology, Inc. | 903 Lake Lily Drive Suite A125 Maitland, FL 32751 | 888-598-0672 | |
| First Communications, LLC | 3340 W Market St Akron, OH 44333 | 800-274-1015 | |
| FirstLight Fiber, Inc. | 12 Metro Park Road Suite 101 Albany, NY 12205 | 888-832-4976 | |
| Fishers Island LD Corporation | 161 Oriental Ave Box 604 Fishers Island, NY 06390 | 631-788-7001 | |
| Fishers Island Telephone Corporation | 161 Oriental Ave Box 604 Fishers Island, NY 06390 | 631-788-7001 | |
| Flexenet Inc. | 244 5th Avenue Suite 2901 New York, NY 10001 | 917-831-4606 | |
| France Telecom Corporate Solutions L.L.C. | 13865 Sunrise Valley Drive Suite 425 Herndon, VA 20171 | 866-280-3726 | |
| Frontier Communications of America, Inc. | 1919 McKinney Ave. Dallas, TX 75201 | 800-921-8101 | |
| Frontier Communications of AuSable Valley, Inc. | 1010 McKinney Ave. Dallas, TX 75201 | 800-921-8101 | |
| Frontier Communications of New York, Inc. | 1919 McKinney Ave. Dallas, TX 75201 | 800-921-8101 | |
| Frontier Communications of Rochester, Inc. | 1919 McKinney Ave. Dallas, TX 75201 | 800-921-8101 | |
| Frontier Communications of Seneca-Gorham, Inc. | 1919 McKinney Ave. Dallas, TX 75201 | 800-921-8101 | |
| Frontier Communications of Sylvan Lake, Inc. | 1919 McKinney Ave. Dallas, TX 75201 | 800-921-8101 | |
| Frontier Telephone of Rochester, Inc. | 1919 McKinney Ave. Dallas, TX 75201 | 800-921-8101 | |
| Fusion Cloud Services, LLC | 210 Interstate North Parkway Suite 200 Atlanta, GA 30339 | 888-275-0777 | |
| Fusion of New Jersey LLC | 210 Interstate North Parkway Suite 200 Atlanta, GA 30339* | 888-301-1721 | |