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

K3QS callsign genealogy

Currently held by EDMONDSON, JEFFREY 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 K3QS's current licensee, walking backwards.

  1. KD5ZENactive· G
    Frey, Jason MTXgranted 2018-07-07
  2. KG5YADcancelled· G
    Frey, Jason MTXgranted 2018-01-29cancelled 2018-07-07

Successor callsigns

Callsigns held now by people who previously held K3QS.

  1. W3DLactive· E
    LEFEVER, DOUGPAgranted 2026-06-09
  2. N3UTactive· E
    EDMONDSON, JEFFREY SMDgranted 2024-02-17
  3. K0IXIcancelled· E
    Bonucci, FabioMAgranted 2009-03-03cancelled 2009-10-02

All historical holders

Every license row we've seen with the callsign K3QS, oldest first.

  • LEFEVER, DOUG PA
    2004-01-30 → cancelled 2006-08-04
  • Bonucci, Fabio MA
    2008-10-28 → cancelled 2009-03-03
  • EDMONDSON, JEFFREY S MD
    2011-03-29 → cancelled 2014-05-16
  • Schaefer, David AZ
    2026-04-07 active
← Back to K3QS License history →