Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6OTR callsign genealogy
Currently held by Vicencio, Eduardo V
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 W6OTR's current licensee, walking backwards.
- Welsh, Harvey MCAgranted 2011-03-23cancelled 2012-04-24
Successor callsigns
Callsigns held now by people who previously held W6OTR.
- VICENCIO, EDUARDO VCAgranted 2017-11-07
All historical holders
Every license row we've seen with the callsign W6OTR, oldest first.
- Vicencio, Eduardo V CA2002-06-22 → cancelled 2008-01-23
- Welsh, Harvey M CA2023-02-08 active