Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4JKH callsign genealogy
Currently held by HASKELL, JOHN K
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 N4JKH's current licensee, walking backwards.
- HASKELL, JOHN KSCgranted 2005-07-14cancelled 2005-08-02
Successor callsigns
Callsigns held now by people who previously held N4JKH.
- DULANEY, FRANK EVAgranted 2000-08-22cancelled 2003-03-08
All historical holders
Every license row we've seen with the callsign N4JKH, oldest first.
- DULANEY, FRANK E VA1998-06-11 → cancelled 2000-08-22
- HASKELL, JOHN K SC2005-08-02 → cancelled 2017-08-03