| Company | Now Known As | Street Address | Customer Contact No. |
|---|---|---|---|
| IDT America, Corp. | 520 Broad Street Newark, NJ 07102 | 800-889-9126 | |
| Impact Telecom, LLC | 1503 E. 19th St. Edmond, OK 73013 | 888-646-5227 | |
| inContact, Inc., d/b/a UCN, Inc. | 75 West Towne Ridge Parkway, Tower 1 Sandy, UT 84070 | 800-826-8028 | |
| Inmate Calling Solutions, LLC d/b/a ICSolutions | 2200 Danbury Street San Antonio, TX 78217 | 888-506-8407 | |
| Integrated Path Communications, LLC | 9030 State Route 22 Suite 3 Hillsdale, NY 12529 | 518-325-1396 | |
| Intelibs, Inc. | 1500 Stony Brook Road Stony Brook, NY 11794 | 877-213-2640 | |
| Intelletrace, Inc. | 936 B 7th St, #122 Novato, CA 94945 | 800-618-5877 | |
| Intellifiber Networks, LLC | 4005 North Rodney Parham Road Little Rock, AR 72212 | 855-352-2731 | |
| InterGlobe Communications | 4295 Arthur Kill Road Staten Island, NY 10309 | 800-747-8837 | |
| International Telcom, LLC | 14 Industrial Avenue Suite 4 Mahwah, NJ 07430 | 866-222-1818 | |
| Intrado Safety Communications, Inc. | 1601 Dry Creek Drive Longmont, CO 80503 | 720-494-5800 | |
| IPC Network Services Inc. | 3 Second Street 15th Floor Jersey City, NJ 07311 | 888-286-2343 | |
| IPC Systems, Inc. | 10 3 Second Street 15th Floor Harborside Financial Plaza Jersey City, NJ 07302 | 888-286-2343 | |
| Jet Wave Corp. | 357 Hempstead Tpke Suite #203 West Hempstead, NY 11552 | 800-700-7778 | |
| John R. Guzzo, LLC d/b/a Hudson Valley Wireless | 11 Cannon Street Green Island, NY 12183 | 518-458-7006 | |