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

K9RDP callsign genealogy

Currently held by PHILLIPS, RYAN D

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 K9RDP's current licensee, walking backwards.

  1. N0NCEactive· G
    Devireddy, AbhiMNgranted 2026-08-08
  2. KE0HHMcancelled· T
    Devireddy, AbhiMNgranted 2016-01-28cancelled 2016-02-17

Successor callsigns

Callsigns held now by people who previously held K9RDP.

  1. KE6ZTDactive· G
    PHILLIPS, RYAN DTXgranted 2018-02-09
← Back to K9RDP License history →