Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KD1K callsign genealogy
Currently held by JANSSON, RICHARD M
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 KD1K's current licensee, walking backwards.
- JANSSON, RICHARD MFLgranted 1998-05-19cancelled 2007-02-09
Successor callsigns
Callsigns held now by people who previously held KD1K.
- PIERSON, HOWARD E JTXgranted 2004-11-26cancelled 2016-11-29
All historical holders
Every license row we've seen with the callsign KD1K, oldest first.
- PIERSON, HOWARD E J TX1997-05-20 → cancelled 2004-11-26
- JANSSON, RICHARD M FL2017-03-20 active