Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9RP callsign genealogy
Currently held by UNDERWOOD, RONALD G
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 N9RP's current licensee, walking backwards.
- UNDERWOOD, RONALD GWIgranted 2013-01-14cancelled 2015-04-03
Successor callsigns
Callsigns held now by people who previously held N9RP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9RP, oldest first.
- PERRY, JOSEPH R IN1998-02-26 → cancelled 2001-01-03
- Provencher, Real TX2003-03-14 → cancelled 2015-03-17
- UNDERWOOD, RONALD G WI2025-02-19 active