Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NA4MB callsign genealogy
Currently held by NORTH AMERICAN MISSION BOARD RADIO CLUB
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 NA4MB's current licensee, walking backwards.
- KI4LBNcancelledNORTH AMERICAN MISSION BOARD RADIO CLUBGAgranted 2005-07-21cancelled 2005-08-09
Successor callsigns
Callsigns held now by people who previously held NA4MB.
No current licensee on record previously held this callsign.