| Company | Status | Now Known As | Street Address | Customer Contact No. | |
|---|---|---|---|---|---|
| K S G America, Inc. | Ceased Operations | ||||
| Kalbro American Corp. | Ceased Operations | ||||
| KC Communications | Ceased Operations | ||||
| KCI Long Distance, Inc. | Ceased Operations | ||||
| KDD America, Inc. | Ceased Operations | KDDI America, Inc. | |||
| KDDI America, Inc. | Active | 7 Teleport Drive Staten Island, NY 10311 | 212-295-1200 | ||
| Keen LD, Inc. | Ceased Operations | ||||
| Keene Valley Video, Inc. | Active | P.O. Box 150 3330 State Highway 11B Nicholville, NY 12965 | 518-476-4510 | ||
| Kelhorn Communications, Inc. | Ceased Operations | ||||
| Key Communication Management, Inc. d/b/a Discount Plus | Ceased Operations | Discount Plus | |||
| KeySpan Communications Corp. | Ceased Operations | 80 Central Street Boxborough, MA 01719 | |||
| Keystone Long Distance, Inc. | Ceased Operations | ||||
| Keystone Telecommunications, Inc. | Ceased Operations | ||||
| kgb Carrier New York, Inc. | Ceased Operations | 750 Lexington Avenue Ninth Floor New York, NY 10022 | |||
| KGM Circuit Solutions, LLC | Ceased Operations | ||||
| KickStartUSA.com, Inc. dba The Office Suite Group | Ceased Operations | ||||
| Kiger Telephone & Telephony, LLC | Ceased Operations | ||||
| King Communications | Ceased Operations | 1545 Route 206 Bedminster, NJ 07921 US | |||
| KMC Data, LLC | Ceased Operations | 300 Oakbrook Parkway bldg. 300 Suite 330 Norcross, GA 30093 | |||
| KMC Telecom V, Inc. | Ceased Operations | 1545 Route 206 Bedminster, NJ 07921 | |||
| Korea Telecom of America, Inc. | Ceased Operations | ||||
| Kouso Communications, LLC | Ceased Operations | ||||
| Kytel Communications Group, Inc. | Ceased Operations | ||||
| KYTEL Communications, Inc. | Ceased Operations | ||||
| Kytel International Group, Inc. | Ceased Operations | ||||
| KYTEL ONE INC. | Ceased Operations | ||||
| K&S #102, Inc. | Ceased Operations | 41 State St 10th flr Albany, NY 12207 | |||