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

WG9W callsign genealogy

Currently held by PIETERICK, JOSEPH 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 WG9W's current licensee, walking backwards.

  1. KD1YPcancelled· E
    Sullivan, MarkMAgranted 2003-01-14cancelled 2005-02-01
  2. N1TDGactive· T
    Gunn, Tristan DCTgranted 2016-09-07
  3. KB1MNMcancelled· T
    Gunn, Tristan DCTgranted 2005-07-22cancelled 2005-08-16

Successor callsigns

Callsigns held now by people who previously held WG9W.

  1. AA0Qactive· E
    PIETERICK, JOSEPH DCOgranted 2019-01-31

All historical holders

Every license row we've seen with the callsign WG9W, oldest first.

  • Sullivan, Mark MA
    2025-01-14 active
  • PIETERICK, JOSEPH D
    — → cancelled 1999-03-31
← Back to WG9W License history →