Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB6SY callsign genealogy
Currently held by Sylvest, Robert T
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 AB6SY's current licensee, walking backwards.
- Sylvest, Robert TCAgranted 2008-12-02cancelled 2009-02-27
Successor callsigns
Callsigns held now by people who previously held AB6SY.
- MERGILLANO, ALEX TCAgranted 2016-12-02