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

KQ1S callsign genealogy

Currently held by SMITH, WILLIAM C

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 KQ1S's current licensee, walking backwards.

  1. KB7LZactive· G
    Zwemke, Darrell LVAgranted 2020-03-03
  2. KO4BWEcancelled· T
    Zwemke, Darrell LVAgranted 2020-02-13cancelled 2020-03-03

Successor callsigns

Callsigns held now by people who previously held KQ1S.

  1. KB7LZcancelled· E
    SMITH, WILLIAM CAZgranted 2018-04-20cancelled 2018-06-26
  2. AF7MXcancelled· E
    SMITH, WILLIAM CAZgranted 2011-01-19cancelled 2015-04-04

All historical holders

Every license row we've seen with the callsign KQ1S, oldest first.

  • MC KEEHAN, GRANT R MA
    1993-04-20 → cancelled 2005-04-21
  • SMITH, WILLIAM C AZ
    2011-01-19 → cancelled 2014-12-09
  • SMITH, WILLIAM C CA
    2015-04-04 → cancelled 2018-04-20
  • SMITH, WILLIAM C SC
    2018-06-26 active
← Back to KQ1S License history →