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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

NX4I callsign genealogy

Currently held by ROBERSON, HOSMER W

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 NX4I's current licensee, walking backwards.

  1. W4DSCactive· T
    SCHAFER, FREDERICK RSCgranted 2026-01-21
  2. N4RMAcancelled· T
    SCHAFER, FREDERICK RSCgranted 2023-11-15cancelled 2026-01-21
  3. KK4UIBcancelled· T
    SCHAFER, FREDERICK RSCgranted 2013-10-17cancelled 2013-12-24

Successor callsigns

Callsigns held now by people who previously held NX4I.

  1. WM0Tactive· E
    SPRINGER, BARRY RCOgranted 2026-01-07
  2. WE4Sactive· E
    KINNEY, JAMES CFLgranted 2018-03-13

All historical holders

Every license row we've seen with the callsign NX4I, oldest first.

  • ROBERSON, HOSMER W FL
    2007-06-16 → cancelled 2016-01-30
  • KINNEY, JAMES C FL
    2018-02-21 → cancelled 2018-03-13
  • COX, DAVID S AL
    2020-04-03 active
← Back to NX4I License history →