Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AB0QA callsign genealogy
Currently held by Gargano, Mark E
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 AB0QA's current licensee, walking backwards.
- Gargano, Mark ECOgranted 2000-03-25cancelled 2001-02-12
Successor callsigns
Callsigns held now by people who previously held AB0QA.
- Gargano, Mark ENYgranted 2021-05-11