Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W4GJR callsign genealogy
Currently held by ROCK, GREGORY J
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 W4GJR's current licensee, walking backwards.
- Rock, Gregory JVAgranted 2016-11-28cancelled 2016-12-17
Successor callsigns
Callsigns held now by people who previously held W4GJR.
- Rock, Gregory JPAgranted 2021-06-11