Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9LFN callsign genealogy
Currently held by RAPPOLD, ERWIN 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 K9LFN's current licensee, walking backwards.
- Rappold, Jeffrey WWIgranted 2015-05-01cancelled 2015-06-02
Successor callsigns
Callsigns held now by people who previously held K9LFN.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9LFN, oldest first.
- RAPPOLD, ERWIN C WI1995-05-02 → cancelled 2007-05-03
- Rappold, Jeffrey W WI2025-03-12 active