Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4OTR callsign genealogy
Currently held by DISANTIS, THOMAS E
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 W4OTR's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held W4OTR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4OTR, oldest first.
- CLARKE, VICTOR E FL2006-03-16 → cancelled 2016-05-03
- DISANTIS, THOMAS E NC2018-05-22 active