Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4HLK callsign genealogy
Currently held by KAPLAN III, HARVEY L
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 K4HLK's current licensee, walking backwards.
- KAPLAN III, HARVEY LGAgranted 1993-06-15cancelled 2002-03-07
- WB2NAEno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held K4HLK.
No current licensee on record previously held this callsign.