Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NY4ZZ callsign genealogy
Currently held by YOPP JR, GRAHAM O
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 NY4ZZ's current licensee, walking backwards.
- YOPP JR, GRAHAM ONCgranted 2008-02-15cancelled 2011-04-19
Successor callsigns
Callsigns held now by people who previously held NY4ZZ.
No current licensee on record previously held this callsign.