Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4JJM callsign genealogy
Currently held by MANTON, JOHN J
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 W4JJM's current licensee, walking backwards.
- Manton, John JGAgranted 2003-01-21cancelled 2003-05-10
Successor callsigns
Callsigns held now by people who previously held W4JJM.
No current licensee on record previously held this callsign.