Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WS7DRK callsign genealogy
Currently held by Hamill, Mark 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 WS7DRK's current licensee, walking backwards.
- Hamill, Mark BWAgranted 2024-09-26cancelled 2025-06-10
Successor callsigns
Callsigns held now by people who previously held WS7DRK.
No current licensee on record previously held this callsign.