| Voice Mobility International | VMII |
| Cincinnati Bell | CBB |
| Full Net Communications | FULO |
| Vonage Holdings | VG |
| Voip Pal.Com | VPLM |
| Zayo Group Holdings | ZAYO |
| Wide Open West | WOW |
| Rig Net | RNET |
| Pctel | PCTI |
| Frontier Communications | FTR |
| Cogent Communications Holdings | CCOI |
| Century Link | CTL |
| Idt | IDT |
| Global Eagle Entertainment | ENT |
| Otelco | OTEL |
| Champion Communication Services | CCMS |
| Cordia | CORG |
| Cortelco Systems Puerto Rico | CPROF |
| Qingdao Footwear | QING |
| Glowpoint | GLOW |
| Remark Holdings | MARK |
| Gtt Communications | GTT |
| O2 Secure Wireless | OTOW |
| Windstream Holdings | WIN |
| Wqn | WQNI |
| Counter Path | CPAH |
| I Qstel | IQST |
| Qwest | CTAA |
| Globe Net Wireless | GNTW |
| Airborne Wireless Network | ABWN |
| United American | UAMA |
| Sw Innovative Holdings | SWHI |