Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4JKM callsign genealogy
Currently held by MASSEY, JERRY K
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 W4JKM's current licensee, walking backwards.
- MASSEY, JERRY KSCgranted 2012-07-23cancelled 2012-08-17
Successor callsigns
Callsigns held now by people who previously held W4JKM.
No current licensee on record previously held this callsign.