Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N7MBT callsign genealogy
Currently held by Topacio, Michael B
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 N7MBT's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held N7MBT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N7MBT, oldest first.
- TAYLOR, NICK J WA1989-01-03 → cancelled 2001-01-04
- Topacio, Michael B CA2024-11-30 active