Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6JMP callsign genealogy
Currently held by Plocher, John 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 K6JMP's current licensee, walking backwards.
- Plocher, John MCAgranted 2009-09-28cancelled 2009-10-16
Successor callsigns
Callsigns held now by people who previously held K6JMP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6JMP, oldest first.
- PORTER JR, JOHN M CA1995-01-04 → cancelled 2007-01-05
- Plocher, John M CA2019-09-20 active