Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4JHK callsign genealogy
Currently held by MARM
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 W4JHK's current licensee, walking backwards.
- KF4RNFcancelledMARMVAgranted 1997-05-08cancelled 2005-03-02
Successor callsigns
Callsigns held now by people who previously held W4JHK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4JHK, oldest first.
- King Jr, Jamie H NC2002-04-03 → cancelled 2002-10-16
- MARM VA2014-12-20 active