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

W6BT callsign genealogy

Currently held by GREYERBIEHL, MERRITT A

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 W6BT's current licensee, walking backwards.

  1. AF6BScancelled· E
    Thomas, BasilCAgranted 2007-02-27cancelled 2008-05-28
  2. KI6IJRcancelled· E
    Thomas, BasilCAgranted 2007-02-27cancelled 2007-04-03
  3. KI6IFEcancelled· G
    Thomas, BasilCAgranted 2007-02-27cancelled 2007-03-09

Successor callsigns

Callsigns held now by people who previously held W6BT.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W6BT, oldest first.

  • GREYERBIEHL, MERRITT A CA
    1996-12-04 → cancelled 2006-05-07
  • Thomas, Basil CA
    2018-03-06 active
← Back to W6BT License history →