Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AK4YB callsign genealogy
Currently held by Calvin, William D
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 AK4YB's current licensee, walking backwards.
- Calvin, William DFLgranted 2011-05-18cancelled 2012-09-12
Successor callsigns
Callsigns held now by people who previously held AK4YB.
No current licensee on record previously held this callsign.