Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB3JD callsign genealogy
Currently held by Denchak, John
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 KB3JD's current licensee, walking backwards.
- Denchak, JohnPAgranted 2011-11-08cancelled 2012-06-26
Successor callsigns
Callsigns held now by people who previously held KB3JD.
- Denchak, JohnPAgranted 2019-09-04