Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0JJB callsign genealogy
Currently held by BABOS, JOHN 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 K0JJB's current licensee, walking backwards.
- BABOS, JOHN JCOgranted 2021-05-24cancelled 2021-08-23
Successor callsigns
Callsigns held now by people who previously held K0JJB.
No current licensee on record previously held this callsign.