In response to a Freedom of Information (FoI) request Ofcom have released the database of 149,483 Amateur Radio callsigns for the UK and Crown Dependencies for December 2021
The database of Allocated and Reserved callsigns can be useful for people wanting to apply for a specific call sign as it shows calls which are not available for issue. The Reserved callsign may specify the date when the call will be available for re-issue. Note: Regional Secondary Locators (RSL’s) are not specified in the database. This means the callsign MU0WLV appears as M0WLV and 2E0HXE appears as 20HXE.
Read more – Southgate: https://bit.ly/346vO0N