Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR8MJB callsign genealogy
Currently held by Biddle, 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 KR8MJB's current licensee, walking backwards.
- Biddle, Michael JMIgranted 2015-10-09cancelled 2015-11-10
Successor callsigns
Callsigns held now by people who previously held KR8MJB.
No current licensee on record previously held this callsign.