Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7BLZ callsign genealogy
Currently held by CHAVEZ, JOHN 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 K7BLZ's current licensee, walking backwards.
- CHAVEZ, JOHN JAZgranted 2023-06-27cancelled 2023-07-18
Successor callsigns
Callsigns held now by people who previously held K7BLZ.
No current licensee on record previously held this callsign.