Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KJ7UBC callsign genealogy
Currently held by Lockwood, Jack M
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 KJ7UBC's current licensee, walking backwards.
- Lockwood, Jack MAZgranted 2016-11-15cancelled 2021-02-02
Successor callsigns
Callsigns held now by people who previously held KJ7UBC.
- Lockwood, Jack MAZgranted 2021-05-04