Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4FH callsign genealogy
Currently held by HEREDIA-BONILLA, FRANCISCO
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 KP4FH's current licensee, walking backwards.
- HEREDIA-BONILLA, FRANCISCOPRgranted 2006-08-01cancelled 2009-11-20
Successor callsigns
Callsigns held now by people who previously held KP4FH.
No current licensee on record previously held this callsign.