Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N5RVN callsign genealogy
Currently held by KOCH JR, JOHN A
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 N5RVN's current licensee, walking backwards.
- SERVIN, NIEVESTXgranted 2024-08-14cancelled 2024-09-04
Successor callsigns
Callsigns held now by people who previously held N5RVN.
- KOCH JR, JOHN AARgranted 2023-02-01cancelled 2023-03-09
All historical holders
Every license row we've seen with the callsign N5RVN, oldest first.
- KOCH JR, JOHN A AR2002-10-30 → cancelled 2003-04-01
- SERVIN, NIEVES TX2024-09-04 active