Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4ASJ callsign genealogy
Currently held by Johnson, Andrew 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 K4ASJ's current licensee, walking backwards.
- Johnson, Andrew SNCgranted 2015-06-30cancelled 2021-08-06
Successor callsigns
Callsigns held now by people who previously held K4ASJ.
No current licensee on record previously held this callsign.