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

KF7YLL callsign genealogy

Currently held by Williams, Kaj E

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 KF7YLL's current licensee, walking backwards.

  1. W0GCMcancelled· G
    Williams, Kaj EMTgranted 2008-04-18cancelled 2012-09-05
  2. KD0BOZcancelled· G
    Williams, Kaj ECOgranted 2007-09-17cancelled 2008-04-18

Successor callsigns

Callsigns held now by people who previously held KF7YLL.

  1. N0DUZactive· G
    Williams, Kaj EAZgranted 2022-11-04
← Back to KF7YLL License history →