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

W4JVM callsign genealogy

Currently held by MARTIN SR, KARL J V

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 W4JVM's current licensee, walking backwards.

  1. KJ4KZcancelled· E
    MARTIN SR, KARL J VALgranted 2011-05-06cancelled 2012-01-10

Successor callsigns

Callsigns held now by people who previously held W4JVM.

  1. KJ4KZcancelled· E
    MARTIN SR, KARL J VALgranted 2011-05-06cancelled 2012-01-10

All historical holders

Every license row we've seen with the callsign W4JVM, oldest first.

  • MARTIN SR, KARL J V AL
    2011-03-01 → cancelled 2011-05-06
  • MARTIN SR, KARL J V AL
    2021-12-10 active
← Back to W4JVM License history →