Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4HAM callsign genealogy
Currently held by NELSON, RAYMOND 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 K4HAM's current licensee, walking backwards.
- Nelson, Raymond CVAgranted 2004-06-30cancelled 2006-05-02
Successor callsigns
Callsigns held now by people who previously held K4HAM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4HAM, oldest first.
- MAHLER, ARTHUR I VA1998-04-30 → cancelled 1999-01-15
- NELSON, RAYMOND C VA2016-07-19 active