Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB0DB callsign genealogy
Currently held by HORRIGAN, JACK ALLEN
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 AB0DB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AB0DB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB0DB, oldest first.
- HORRIGAN, JACK ALLEN CO2003-02-20 → cancelled 2014-12-30
- Beal, David D CO2024-12-24 active