Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3MBL callsign genealogy
Currently held by Northcott, 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 K3MBL's current licensee, walking backwards.
- Northcott, Michael BORgranted 2017-11-20cancelled 2017-12-08
Successor callsigns
Callsigns held now by people who previously held K3MBL.
No current licensee on record previously held this callsign.