Lijst van PI9 calls, speciale organisaties
| Call | Station |
|---|---|
| PI9A | Stichting contest groep Assen |
| PI9ADL | Radiokamer Aviodrome Lelystad |
| PI9CAM | CAMRAS foundation Dwingeloo astronomic observatory |
| PI9CM | PI9CM dx group |
| PI9D | Dares |
| PI9EPO | Amicale Amateur Radio Club |
| PI9ESA | Estec radio club |
| PI9TNO | TNO Delft |
| PI9HIL | Scoutinggroep Hilvertheem |
| PI9HM | Stichting Hellemonster |
| PI9JC | Museum Jan Corver |
| PI9KLM | Kortegolfzender PI9KLM |
| PI9MER | Stichting behoud marineschip Mercuur |
| PI9MLM | Militair luchtvaart museum |
| PI9NHL | Lichtschip Noord Hinder |
| PI9NOZ | NOZEMA |
| PI9RNW | Radio Nederland Wereldomroep |
| PI9SMV | Museum verbindingsdienst |
| PI9SRS | Scouting radio Spijkenisse |
| PI9SZM | Zeekadetten Maassluis |
| PI9SZR | Zeekadetten Rotterdam |
| PI9VEV | Ver. Electrotechnisch Vakonderwijs |
| PI9ZKA | Zeekadetkorps Amsterdam |
| PI9ZKS | Zeekadetten J V Heemskerck |