Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5JAM callsign genealogy
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 K5JAM's current licensee, walking backwards.
- MERCER, JULIE ATXgranted 1994-04-26cancelled 2000-04-07
Successor callsigns
Callsigns held now by people who previously held K5JAM.
- MITCHELL, JACK ATXgranted 2008-05-13cancelled 2019-09-18
All historical holders
Every license row we've seen with the callsign K5JAM, oldest first.
- MERCER, JULIE A AR2020-02-01 active
- —— → cancelled 1997-09-17