uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

AB0SO callsign genealogy

Currently held by Johnson, Edward G

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 AB0SO's current licensee, walking backwards.

  1. KC0DUEcancelled· E
    Johnson, Edward GMOgranted 1998-06-25cancelled 2001-11-06

Successor callsigns

Callsigns held now by people who previously held AB0SO.

No current licensee on record previously held this callsign.