Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K1YBZ callsign genealogy
Currently held by GRAMATA, DAVID G
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 K1YBZ's current licensee, walking backwards.
- GRAMATA, DAVID GPAgranted 2021-05-06cancelled 2021-09-25
Successor callsigns
Callsigns held now by people who previously held K1YBZ.
No current licensee on record previously held this callsign.