Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4YNF callsign genealogy
Currently held by Betancourt, Juan M
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 K4YNF's current licensee, walking backwards.
- Betancourt, Juan MFLgranted 2018-10-23cancelled 2018-12-14
Successor callsigns
Callsigns held now by people who previously held K4YNF.
No current licensee on record previously held this callsign.