Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0MBM callsign genealogy
Currently held by Mabbitt, Michael
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 N0MBM's current licensee, walking backwards.
- Mabbitt, Michael BCOgranted 2015-05-27cancelled 2015-06-19
Successor callsigns
Callsigns held now by people who previously held N0MBM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0MBM, oldest first.
- YOCKEY, JOHN F CO1990-06-05 → cancelled 2002-06-06
- Mabbitt, Michael CO2025-04-29 active