Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W9TDC callsign genealogy
Currently held by Chapman, Timothy 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 W9TDC's current licensee, walking backwards.
- Chapman, Timothy DILgranted 2001-11-14cancelled 2002-03-08
Successor callsigns
Callsigns held now by people who previously held W9TDC.
No current licensee on record previously held this callsign.