Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N7XB callsign genealogy
Currently held by MC CAIN, BRUCE R
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 N7XB's current licensee, walking backwards.
- KK7HYNcancelledNSARC AZAZgranted 2022-08-24cancelled 2022-10-08
Successor callsigns
Callsigns held now by people who previously held N7XB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7XB, oldest first.
- MC CAIN, BRUCE R OR2010-07-03 → cancelled 2022-09-20
- NSARC AZ AZ2022-10-08 active