Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB1P callsign genealogy
Currently held by Bertolino, Thomas 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 KB1P's current licensee, walking backwards.
- Bertolino, Thomas SMAgranted 2007-01-30cancelled 2009-05-29
Successor callsigns
Callsigns held now by people who previously held KB1P.
- THOMPSON, PAUL EMEgranted 2016-07-12
All historical holders
Every license row we've seen with the callsign KB1P, oldest first.
- THOMPSON, PAUL E ME1998-10-02 → cancelled 2006-06-23
- Bertolino, Thomas S NC2019-03-07 active