Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3JMC callsign genealogy
Currently held by Colden, 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 W3JMC's current licensee, walking backwards.
- Colden, John MPAgranted 2016-01-25cancelled 2016-02-13
Successor callsigns
Callsigns held now by people who previously held W3JMC.
No current licensee on record previously held this callsign.