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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

K9SOU callsign genealogy

Currently held by Bloomington High School South Amateur Radio Club

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 K9SOU's current licensee, walking backwards.

  1. KC9CZUcancelled
    Bloomington High School South Amateur Radio ClubINgranted 2003-01-03cancelled 2003-05-10

Successor callsigns

Callsigns held now by people who previously held K9SOU.

No current licensee on record previously held this callsign.

← Back to K9SOU License history →