Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K5JBO callsign genealogy
Currently held by Pierce, William 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 K5JBO's current licensee, walking backwards.
- BAJAN, JANET WNMgranted 2015-06-18cancelled 2018-04-17
Successor callsigns
Callsigns held now by people who previously held K5JBO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K5JBO, oldest first.
- Pierce, William E TX2002-03-27 → cancelled 2014-03-28
- BAJAN, JANET W NM2018-04-17 active