Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0AOL callsign genealogy
Currently held by COLGROVE, THOMAS C
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 K0AOL's current licensee, walking backwards.
- Kurian, JoeTNgranted 2023-07-04cancelled 2024-03-29
Successor callsigns
Callsigns held now by people who previously held K0AOL.
- COLGROVE, THOMAS CNEgranted 2016-06-14
All historical holders
Every license row we've seen with the callsign K0AOL, oldest first.
- COLGROVE, THOMAS C NE2009-03-25 → cancelled 2016-06-14
- Kurian, Joe CT2024-03-29 active