Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0SS callsign genealogy
Currently held by HALLOCK, DAVID B
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 W0SS's current licensee, walking backwards.
- COTTRELL, SHOGO JKSgranted 2024-01-03cancelled 2024-02-16
Successor callsigns
Callsigns held now by people who previously held W0SS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0SS, oldest first.
- HALLOCK, DAVID B IA2016-02-23 → cancelled 2022-01-28
- COTTRELL, SHOGO J KS2024-02-16 active