| Symbol | Name | Country | Exchange |
|---|---|---|---|
| ADTN | ADTRAN, Inc. | US | NASDAQ |
| AMOV | America Movil, S.A.B. de C.V. | US | NYSE |
| AMX | America Movil, S.A.B. de C.V. | US | NYSE |
| OCC | Optical Cable Corporation | US | NASDAQ |
| CVST | Covista Communications, Inc | US | OTC |
| TCCO | Technical Communications Corp. | US | OTC |
| 0728 | China Telecom | HK | HK |
| 601728 | China Telecom Corp Ltd | CN | SHG |