| Symbol | Name | Country | Exchange |
|---|---|---|---|
| HLTOF | Hellenic Telecommunications Organization S.A. | US | OTC |
| HTO | Hellenic Telecommunications Organization S.A | GR | AT |
| OTE | Hellenic Telecommunications Organization S.A | DE | F |
| OTES | HELLENIC TELEC.ORG.ADR1/2 | DE | F |
| 0FIZ | Hellenic Telec | GB | LSE |