Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA1CT callsign genealogy
Currently held by Shea Jr, Matthew P
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 AA1CT's current licensee, walking backwards.
- Shea, MatthewCTgranted 2015-03-24cancelled 2016-07-29
Successor callsigns
Callsigns held now by people who previously held AA1CT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA1CT, oldest first.
- GUAY, ROBERT A RI1992-06-09 → cancelled 2004-06-11
- Shea Jr, Matthew P CT2026-05-05 active