Confidence: Medium · Source: FCC ULS · As of 2026-09-12
WB9KZB callsign genealogy
Currently held by GRANT JR, LARRY 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 WB9KZB's current licensee, walking backwards.
- GRANT JR, LARRY JINgranted 2017-03-09cancelled 2018-09-08
Successor callsigns
Callsigns held now by people who previously held WB9KZB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WB9KZB, oldest first.
- Grant Sr, Michael J IN2004-06-29 → cancelled 2016-07-09
- GRANT JR, LARRY J IN2018-09-08 active