Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0TPB callsign genealogy
Currently held by BUTLER, TIMOTHY P
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 K0TPB's current licensee, walking backwards.
- BUTLER, TIMOTHY PKSgranted 2011-04-18cancelled 2011-05-24
Successor callsigns
Callsigns held now by people who previously held K0TPB.
No current licensee on record previously held this callsign.