Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KN4REC callsign genealogy
Currently held by Castillo, Romeo E
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 KN4REC's current licensee, walking backwards.
- Castillo, Romeo EFLgranted 2021-04-14cancelled 2021-05-15
Successor callsigns
Callsigns held now by people who previously held KN4REC.
- RODRIGUEZ, NANCY CHARLOTTEPRgranted 2019-01-01
All historical holders
Every license row we've seen with the callsign KN4REC, oldest first.
- RODRIGUEZ, NANCY CHARLOTTE FL2018-12-13 → cancelled 2019-01-01
- Castillo, Romeo E FL2021-05-15 active