Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7HDC callsign genealogy
Currently held by Chapin Jr., Howard 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 W7HDC's current licensee, walking backwards.
- CHAPIN, H DAYWAgranted 1996-03-25cancelled 2003-11-18
Successor callsigns
Callsigns held now by people who previously held W7HDC.
No current licensee on record previously held this callsign.