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

N4US callsign genealogy

Currently held by Martin, Jeffrey A

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 N4US's current licensee, walking backwards.

  1. WB4JMcancelled· E
    Martin, Jeffrey AKYgranted 2022-06-01cancelled 2025-12-09
  2. N5KOLcancelled· E
    Martin, Jeffery AKYgranted 1993-05-04cancelled 2002-08-13
  3. KA0PUU
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held N4US.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign N4US, oldest first.

  • SNYDER, ALLAN L R FL
    1995-09-18 → cancelled 2001-03-09
  • TOLLER, RONALD G FL
    2013-07-13 → cancelled 2025-10-01
  • Martin, Jeffrey A KY
    2025-12-09 active
← Back to N4US License history →