Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0NC callsign genealogy
Currently held by GIESEL, THOMAS C
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 AB0NC's current licensee, walking backwards.
- GIESEL, THOMAS CIAgranted 1993-09-14cancelled 2000-06-09
Successor callsigns
Callsigns held now by people who previously held AB0NC.
- GIESEL, THOMAS CIAgranted 2020-07-09