Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4JHM callsign genealogy
Currently held by MENTEN SR, THEODORE 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 W4JHM's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W4JHM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4JHM, oldest first.
- MENTEN SR, THEODORE J FL1996-06-13 → cancelled 2008-06-14
- MOORE, JOHN H FL2018-04-27 active