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

NM4B callsign genealogy

Currently held by SHANNON, JOHN G

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 NM4B's current licensee, walking backwards.

  1. K4ERNcancelled· E
    SHANNON, JOHN GFLgranted 2023-12-30cancelled 2026-04-14
  2. KQ4KBKcancelled· E
    SHANNON, JOHN GFLgranted 2023-07-21cancelled 2023-12-30

Successor callsigns

Callsigns held now by people who previously held NM4B.

  1. W0JPRexpired· E
    REYMOND, JOHN PALgranted 2002-03-07cancelled 2014-03-08

All historical holders

Every license row we've seen with the callsign NM4B, oldest first.

  • REYMOND, JOHN P AL
    1995-11-28 → cancelled 2002-03-07
  • Butler, Samuel L GA
    2013-12-28 → cancelled 2026-03-27
  • SHANNON, JOHN G FL
    2026-04-14 active
← Back to NM4B License history →