Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA9GPM callsign genealogy
Currently held by MARKER, TERRY L
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 KA9GPM's current licensee, walking backwards.
- MARKER, TERRY LINgranted 2024-06-26cancelled 2024-07-16
Successor callsigns
Callsigns held now by people who previously held KA9GPM.
- MARKER, TERRY LINgranted 2024-07-16cancelled 2026-05-09
All historical holders
Every license row we've seen with the callsign KA9GPM, oldest first.
- MARKER, TERRY L IN1995-09-07 → cancelled 2007-09-08
- MARKER, TERRY L IN2024-07-16 → cancelled 2025-03-31