Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4MTB callsign genealogy
Currently held by Black, Michael T
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 N4MTB's current licensee, walking backwards.
- Black, Michael TFLgranted 2010-01-13cancelled 2010-02-17
Successor callsigns
Callsigns held now by people who previously held N4MTB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4MTB, oldest first.
- BANNER, NED NC1995-07-25 → cancelled 2007-07-26
- Black, Michael T VA2019-11-28 active