Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KN3ABC callsign genealogy
Currently held by Herren Sr, William 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 KN3ABC's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KN3ABC.
No current licensee on record previously held this callsign.