Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9SA callsign genealogy
Currently held by BUTTIMER, GREG 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 N9SA's current licensee, walking backwards.
- GILLILAN, PATRICK ATXgranted 2024-12-17
Successor callsigns
Callsigns held now by people who previously held N9SA.
- GILLILAN, PATRICK ATXgranted 2024-12-17
All historical holders
Every license row we've seen with the callsign N9SA, oldest first.
- BUTTIMER, GREG J IL2010-03-24 → cancelled 2019-08-20
- GILLILAN, PATRICK A TX2021-09-10 → cancelled 2024-12-17