Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W5JMB callsign genealogy
Currently held by BARTLETT, JAMES 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 W5JMB's current licensee, walking backwards.
- Barnhill, John MSCgranted 2026-03-18cancelled 2026-04-24
Successor callsigns
Callsigns held now by people who previously held W5JMB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W5JMB, oldest first.
- BARTLETT, JAMES M OK2010-01-13 → cancelled 2022-01-14
- Barnhill, John M SC2026-04-24 active