Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N5RCC callsign genealogy
Currently held by CASTILLO, ROBERT C
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 N5RCC's current licensee, walking backwards.
- CASTILLO, ROBERT CTXgranted 2001-06-28cancelled 2008-11-15
Successor callsigns
Callsigns held now by people who previously held N5RCC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N5RCC, oldest first.
- GRINDSTAFF, TERRI J NM1990-07-17 → cancelled 2002-07-18
- CASTILLO, ROBERT C TX2019-01-31 active