Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC9LAI callsign genealogy
Currently held by STAPLETON, THOMAS 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 KC9LAI's current licensee, walking backwards.
- Stapleton, Thomas RINgranted 2022-12-13cancelled 2023-01-04
Successor callsigns
Callsigns held now by people who previously held KC9LAI.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC9LAI, oldest first.
- STAPLETON, THOMAS R CO2007-03-14 → cancelled 2019-03-15
- Stapleton, Thomas R IN2023-01-04 active