Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB4KRR callsign genealogy
Currently held by Luna Mr, Gilberto 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 KB4KRR's current licensee, walking backwards.
- Luna, Gilberto LFLgranted 2025-09-10cancelled 2026-04-14
Successor callsigns
Callsigns held now by people who previously held KB4KRR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB4KRR, oldest first.
- MAYHEW, PAUL FL2005-07-12 → cancelled 2017-09-15
- Luna Mr, Gilberto L FL2026-04-14 active