Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3AK 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 AB3AK's current licensee, walking backwards.
- Heller, Karl WPAgranted 1995-05-12cancelled 2003-01-17
Successor callsigns
Callsigns held now by people who previously held AB3AK.
- HELLER, KARL WPAgranted 2003-02-05cancelled 2008-12-20