Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4IAM callsign genealogy
Currently held by Trombley, Denise M
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 K4IAM's current licensee, walking backwards.
- Trombley, Denise MNYgranted 2017-04-10cancelled 2021-04-16
Successor callsigns
Callsigns held now by people who previously held K4IAM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4IAM, oldest first.
- MANNING JR, WALTER H FL2003-12-23 → cancelled 2016-03-02
- Trombley, Denise M NY2021-04-16 active