Confidence: Medium · Source: FCC ULS · As of 2026-09-15
KB0JBF callsign genealogy
Currently held by MC MANNES, DOUGLAS J
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 KB0JBF's current licensee, walking backwards.
- KE0DZCcancelledNorth Iowa FM ClubIAgranted 2015-04-14cancelled 2015-05-15
Successor callsigns
Callsigns held now by people who previously held KB0JBF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KB0JBF, oldest first.
- MC MANNES, DOUGLAS J IA2012-01-23 → cancelled 2015-01-03
- North Iowa FM Club IA2015-05-15 active