Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3KWH callsign genealogy
Currently held by HELLER, KARL W
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 K3KWH's current licensee, walking backwards.
- HERBST, KENNETH WPAgranted 2006-04-18cancelled 2011-01-11
Successor callsigns
Callsigns held now by people who previously held K3KWH.
- HELLER, KARL WPAgranted 2018-10-20
All historical holders
Every license row we've seen with the callsign K3KWH, oldest first.
- HELLER, KARL W PA2003-02-05 → cancelled 2008-12-20
- HERBST, KENNETH W PA2020-11-13 active