Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3ZIP callsign genealogy
Currently held by BISHOP JR, GEORGE W
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 K3ZIP's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K3ZIP.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3ZIP, oldest first.
- BISHOP JR, GEORGE W PA2008-02-09 → cancelled 2020-03-12
- Brannigan, John OR2020-09-29 active