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

WF0N callsign genealogy

Currently held by HOLDAHL, THEODORE S

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 WF0N's current licensee, walking backwards.

  1. W9LLactive· E
    OLSON, CRAIG ATXgranted 2019-05-03
  2. KI5AAXcancelled· E
    OLSON, CRAIG ATXgranted 2018-05-29cancelled 2019-05-03

Successor callsigns

Callsigns held now by people who previously held WF0N.

  1. KC3OLactive· E
    HOLDAHL, THEODORE SKSgranted 2025-01-11

All historical holders

Every license row we've seen with the callsign WF0N, oldest first.

  • SEUFERER, NILUS J IA
    1997-11-19 → cancelled 2009-11-20
  • HOLDAHL, THEODORE S KS
    2011-11-04 → cancelled 2015-03-24
  • Bishop, Reid J CO
    2017-04-14 active
← Back to WF0N License history →