|This form provides information regarding the availability of a callsign for amateur radio use. Common callsign
combinations starting with the prefixes PA to PH, PI4, PI5 and PI9 can be checked.
Special callsigns and callsigns for unmanned stations are not visible here.
You can also download the complete list of amateur radio callsigns. This list does not include special callsigns
and callsigns for unmanned stations.
A list of callsigns that are used by unmanned stations can be found under downloads on the webpage