Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K1TOM callsign genealogy
Currently held by Kirkpatrick, 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 K1TOM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K1TOM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K1TOM, oldest first.
- MC DOWELL SR, THOMAS R MA2006-11-29 → cancelled 2019-02-13
- Kirkpatrick, Thomas C CT2019-03-09 active