Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NB7SN callsign genealogy
Currently held by JOHNSON, MARTIN K
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 NB7SN's current licensee, walking backwards.
- JOHNSON, MARTIN KWAgranted 2000-05-09cancelled 2000-07-07
Successor callsigns
Callsigns held now by people who previously held NB7SN.
No current licensee on record previously held this callsign.