Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM4THP callsign genealogy
Currently held by GENDRON, JOHN P
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 KM4THP's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KM4THP.
- GENDRON, JOHN PSCgranted 2016-05-06cancelled 2018-12-15