Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0BT callsign genealogy
Currently held by MC MILLAN, JOSEPH D
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 N0BT's current licensee, walking backwards.
- Peterson, Michael DIAgranted 2023-02-22cancelled 2023-06-22
Successor callsigns
Callsigns held now by people who previously held N0BT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0BT, oldest first.
- MC MILLAN, JOSEPH D PA2011-03-30 → cancelled 2023-05-31
- Peterson, Michael D IA2023-06-22 active