Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3WRB callsign genealogy
Currently held by Butler JR Jr, William R
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 K3WRB's current licensee, walking backwards.
- KB3WNOcancelledShenanago Valley Amateur Radio ClubPAgranted 2011-10-04cancelled 2016-08-02
Successor callsigns
Callsigns held now by people who previously held K3WRB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3WRB, oldest first.
- Butler JR Jr, William R PA2008-07-22 → cancelled 2015-06-03
- Shenanago Valley Amateur Radio Club PA2026-07-14 active