Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB4Y callsign genealogy
Currently held by Manders, Patrick R
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 AB4Y's current licensee, walking backwards.
- Manders, Patrick RFLgranted 2021-02-08cancelled 2023-05-12
Successor callsigns
Callsigns held now by people who previously held AB4Y.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB4Y, oldest first.
- MARTIN, CHARLES E KY2011-01-25 → cancelled 2023-04-25
- Manders, Patrick R FL2023-05-12 active