Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W1JPZ callsign genealogy
Currently held by Zabriskie Sr, John 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 W1JPZ's current licensee, walking backwards.
- ZABRISKIE SR, JOHN Pcancelled 1998-12-15
Successor callsigns
Callsigns held now by people who previously held W1JPZ.
No current licensee on record previously held this callsign.