Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB0LT callsign genealogy
Currently held by NGUYEN, TRUNG Q
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 WB0LT's current licensee, walking backwards.
- O'LOUGHLIN, STEVEN KCOgranted 2020-07-28cancelled 2021-07-20
Successor callsigns
Callsigns held now by people who previously held WB0LT.
- NGUYEN, TRUNG QCAgranted 2016-02-19cancelled 2021-03-02
All historical holders
Every license row we've seen with the callsign WB0LT, oldest first.
- NGUYEN, TRUNG Q CA2016-01-26 → cancelled 2016-02-19
- O'LOUGHLIN, STEVEN K CO2021-07-20 active