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

W1JMB callsign genealogy

Currently held by Byrne Sr, Bobby J

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 W1JMB's current licensee, walking backwards.

  1. W3JMBcancelled· G
    Baird, James MMDgranted 2018-07-03cancelled 2021-07-02
  2. KB3ROUcancelled· G
    Baird, James MMDgranted 2008-08-18cancelled 2008-09-09

Successor callsigns

Callsigns held now by people who previously held W1JMB.

  1. WB4ZQOactive· E
    BLACKWELL, JOHNNIE MSCgranted 2019-05-06

All historical holders

Every license row we've seen with the callsign W1JMB, oldest first.

  • Byrne Sr, Bobby J MS
    2025-02-05 active
  • BLACKWELL, JOHNNIE M
    — → cancelled 1999-07-09
← Back to W1JMB License history →