Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W3DSO callsign genealogy
Currently held by Allen, Richard W
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 W3DSO's current licensee, walking backwards.
- ALLEN, RICHARD WCAgranted 1999-07-18cancelled 1999-09-16
Successor callsigns
Callsigns held now by people who previously held W3DSO.
- Allen, Richard WCAgranted 2014-11-04