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

K9OOO callsign genealogy

Currently held by De Runtz, Phillip E

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 K9OOO's current licensee, walking backwards.

  1. KC9CAAcancelled· T
    De Runtz, Phillip EILgranted 2002-06-19cancelled 2007-11-06

Successor callsigns

Callsigns held now by people who previously held K9OOO.

No current licensee on record previously held this callsign.