Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KB1JBM callsign genealogy
Currently held by Byther, James E
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 KB1JBM's current licensee, walking backwards.
- Byther, James EMEgranted 1995-03-24cancelled 2002-11-22
Successor callsigns
Callsigns held now by people who previously held KB1JBM.
- BYTHER, JAMES EMEgranted 2003-02-07cancelled 2015-02-10