Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB9YD callsign genealogy
Currently held by SMUCZEROWICZ, ADAM J
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 AB9YD's current licensee, walking backwards.
- SMUCZEROWICZ, ADAM JILgranted 2006-02-03cancelled 2010-11-30
Successor callsigns
Callsigns held now by people who previously held AB9YD.
No current licensee on record previously held this callsign.