Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WA4WYF callsign genealogy
Currently held by CALKINS SR, MICHAEL 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 WA4WYF's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held WA4WYF.
- CALKINS SR, MICHAEL CFLgranted 2018-10-04