Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3CRK callsign genealogy
Currently held by Heydt Jr, William H
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 W3CRK's current licensee, walking backwards.
- Heydt Jr, William HMDgranted 2015-02-17cancelled 2017-03-28
Successor callsigns
Callsigns held now by people who previously held W3CRK.
No current licensee on record previously held this callsign.