Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WO7K callsign genealogy
Currently held by Hawkins, John C
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 WO7K's current licensee, walking backwards.
- Hawkins, John CNVgranted 2021-11-08cancelled 2024-10-18
Successor callsigns
Callsigns held now by people who previously held WO7K.
- BUYAK, MITCHELL GMTgranted 2022-09-27
All historical holders
Every license row we've seen with the callsign WO7K, oldest first.
- PIER, DAVID L IL2009-12-31 → cancelled 2022-01-01
- BUYAK, MITCHELL G MT2022-01-21 → cancelled 2022-09-27
- Hawkins, John C NV2024-10-18 active