Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KB0MZJ callsign genealogy
Currently held by CATHCART, AARON S
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 KB0MZJ's current licensee, walking backwards.
- CATHCART, AARON SCOgranted 2004-01-06cancelled 2005-04-12
Successor callsigns
Callsigns held now by people who previously held KB0MZJ.
No current licensee on record previously held this callsign.