Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KJ7JB callsign genealogy
Currently held by BLAKE, JOHN H
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 KJ7JB's current licensee, walking backwards.
- BLAKE, JOHN HIDgranted 2001-05-30cancelled 2010-08-31
Successor callsigns
Callsigns held now by people who previously held KJ7JB.
- Mac Kenzie, Howard LWAgranted 1998-12-09cancelled 2002-07-08
All historical holders
Every license row we've seen with the callsign KJ7JB, oldest first.
- BLAKE, JOHN H ID2020-07-07 active
- MAC KENZIE, HOWARD L— → cancelled 1998-12-09