Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W0TBP callsign genealogy
Currently held by BIRD, IVAN S
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 W0TBP's current licensee, walking backwards.
- BIRD, IVAN SMOgranted 2010-09-02cancelled 2010-09-28
Successor callsigns
Callsigns held now by people who previously held W0TBP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W0TBP, oldest first.
- OLEKSY, HERMAN S MO1997-03-07 → cancelled 2006-06-17
- BIRD, IVAN S MO2022-03-17 active