Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB4TTO callsign genealogy
Currently held by HENRY, RICHARD 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 WB4TTO's current licensee, walking backwards.
- HENRY, RICHARD DNCgranted 2001-10-04cancelled 2004-06-29
Successor callsigns
Callsigns held now by people who previously held WB4TTO.
- HENRY, RICHARD DNCgranted 2021-08-03