Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4JAP callsign genealogy
Currently held by PARKER JR, JOHN A
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 W4JAP's current licensee, walking backwards.
- Price, John ASCgranted 2021-06-25cancelled 2022-10-07
Successor callsigns
Callsigns held now by people who previously held W4JAP.
- Price, John ASCgranted 2023-03-17
All historical holders
Every license row we've seen with the callsign W4JAP, oldest first.
- PARKER JR, JOHN A SC1999-11-04 → cancelled 2011-11-05
- Price, John A SC2022-10-07 → cancelled 2023-03-17