Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9MPJ callsign genealogy
Currently held by KAUFELD, JOHN P
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 N9MPJ's current licensee, walking backwards.
- KB9GNXno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held N9MPJ.
- KAUFELD, JOHN PINgranted 2022-06-22