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

W4LFB callsign genealogy

Currently held by Bethke, Lawrence F

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 W4LFB's current licensee, walking backwards.

  1. W1LFBcancelled· G
    Bethke, Lawrence FTNgranted 2021-05-01cancelled 2023-04-04
  2. K4LFBcancelled· G
    Bethke, Lawrence FTNgranted 2012-03-16cancelled 2021-05-01
  3. KK4DQMcancelled· G
    Bethke, Lawrence FTNgranted 2011-08-16cancelled 2012-03-16

Successor callsigns

Callsigns held now by people who previously held W4LFB.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign W4LFB, oldest first.

  • SJOQUIST, CHARLES W FL
    1993-11-02 → cancelled 2005-11-03
  • Bethke, Lawrence F TN
    2023-04-04 active
← Back to W4LFB License history →