Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA6ZLO callsign genealogy
Currently held by PINHEIRO, TERRANCE S
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 WA6ZLO's current licensee, walking backwards.
- PINHEIRO, TERRANCE SCAgranted 2021-03-12cancelled 2023-10-31
- KB6DVWno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held WA6ZLO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WA6ZLO, oldest first.
- PINHEIRO, CLARENCE A CA2014-01-02 → cancelled 2023-06-19
- PINHEIRO, TERRANCE S CA2023-10-31 active