Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4AJC callsign genealogy
Currently held by CALDERON, ADRIAN J
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by KP4AJC's current licensee, walking backwards.
- CALDERON, ADRIAN JPRgranted 2003-01-29cancelled 2011-04-22
Successor callsigns
Callsigns held now by people who previously held KP4AJC.
No current licensee on record previously held this callsign.