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

W1CKY callsign genealogy

Currently held by Chaves, Matthew

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 W1CKY's current licensee, walking backwards.

  1. KW1CKYcancelled· G
    Brown, Matthew EMEgranted 2022-11-29cancelled 2026-03-20
  2. KC1SAXcancelled· T
    Brown, Matthew EMEgranted 2022-11-09cancelled 2022-11-29

Successor callsigns

Callsigns held now by people who previously held W1CKY.

  1. KD1BLTactive· G
    Chaves, MatthewMAgranted 2025-12-09
  2. KC1GGFcancelled· G
    Chaves, MatthewMAgranted 2007-07-24cancelled 2016-09-27

All historical holders

Every license row we've seen with the callsign W1CKY, oldest first.

  • Chaves, Matthew MA
    2007-07-24 → cancelled 2016-09-13
  • Chaves, Matthew MA
    2017-11-04 → cancelled 2025-12-09
  • Brown, Matthew E ME
    2026-03-20 active
← Back to W1CKY License history →