| Symbol | Name | Country | Exchange |
|---|---|---|---|
| HKTTF | HKT Trust | US | OTC |
| HKTTY | Hkt Trust and Hkt Ltd ADR | US | OTC |
| HLTOF | Hellenic Telecommunications Organization S.A. | US | OTC |
| HLTOY | Hellenic Telecommunication Organ | US | OTC |
| HTO | Hellenic Telecommunications Organization S.A | GR | AT |