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Confidence: Medium · Source: FCC ULS · As of 2026-09-11

KB5DM callsign genealogy

Currently held by CALLAHAN, BRIAN

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 KB5DM's current licensee, walking backwards.

  1. KI5JLIcancelled· E
    CALLAHAN, BRIANTXgranted 2020-06-15cancelled 2020-08-25

Successor callsigns

Callsigns held now by people who previously held KB5DM.

  1. KB5DMCactive· E
    CALLAHAN, BRIANTXgranted 2020-10-09
  2. W5CBDexpired· A
    DREHER, CLAUDE BARgranted 2000-08-26cancelled 2012-08-28

All historical holders

Every license row we've seen with the callsign KB5DM, oldest first.

  • DREHER, CLAUDE B AR
    1998-09-14 → cancelled 2000-08-26
  • CALLAHAN, BRIAN TX
    2020-08-25 → cancelled 2020-10-09
← Back to KB5DM License history →