Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4NQJ callsign genealogy
Currently held by PANG, BO
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 K4NQJ's current licensee, walking backwards.
- PANG, BOTXgranted 2019-03-29cancelled 2019-04-19
Successor callsigns
Callsigns held now by people who previously held K4NQJ.
- WHEELER JR, WILLIAM MFLgranted 2014-11-20cancelled 2015-09-29
All historical holders
Every license row we've seen with the callsign K4NQJ, oldest first.
- WHEELER JR, WILLIAM M FL1999-10-13 → cancelled 2005-01-28
- PANG, BO TX2019-04-19 active