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

WL9ISO callsign genealogy

Currently held by CERES

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 WL9ISO's current licensee, walking backwards.

  1. WA9ISOcancelled
    CERESAKgranted 2020-04-07cancelled 2020-05-16
  2. KN6IJScancelled
    CERESCAgranted 2020-03-17cancelled 2020-04-07

Successor callsigns

Callsigns held now by people who previously held WL9ISO.

  1. WL3ISOactive
    CERESAKgranted 2020-07-07
← Back to WL9ISO License history →