Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WI1SON callsign genealogy
Currently held by WILSON, MARK A
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 WI1SON's current licensee, walking backwards.
- WILSON, MARK AGAgranted 2005-07-18cancelled 2005-08-16
Successor callsigns
Callsigns held now by people who previously held WI1SON.
No current licensee on record previously held this callsign.