Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KN4WTB callsign genealogy
Currently held by BREAKER, WILLIAM T
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 KN4WTB's current licensee, walking backwards.
- BREAKER, WILLIAM TNCgranted 2019-07-22cancelled 2019-08-09
Successor callsigns
Callsigns held now by people who previously held KN4WTB.
No current licensee on record previously held this callsign.