Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KP4JAB callsign genealogy
Currently held by Aponte-Belen, Juan L
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 KP4JAB's current licensee, walking backwards.
- Aponte-Belen, Juan LPRgranted 2014-07-25cancelled 2016-07-15
Successor callsigns
Callsigns held now by people who previously held KP4JAB.
No current licensee on record previously held this callsign.