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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

K4NXS callsign genealogy

Currently held by Bordenkircher, Tom

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 K4NXS's current licensee, walking backwards.

  1. KD4SIXcancelled· T
    Bordenkircher, TomSCgranted 2022-04-26cancelled 2023-01-14
  2. K4EEOactive· G
    Ridgeway, George AFLgranted 2026-02-10
  3. KC2HOVcancelled· G
    Ridgeway, George AFLgranted 2020-12-04cancelled 2026-02-10

Successor callsigns

Callsigns held now by people who previously held K4NXS.

  1. KR4CSHcancelled· T
    Bordenkircher, TomSCgranted 2023-01-14cancelled 2025-05-16
  2. K4MOactive· E
    BELLAMY, THEO ENCgranted 2020-01-15

All historical holders

Every license row we've seen with the callsign K4NXS, oldest first.

  • BELLAMY, THEO E NC
    1999-05-25 → cancelled 2000-02-12
  • Bordenkircher, Tom SC
    2023-01-14 → cancelled 2025-03-29
← Back to K4NXS License history →