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

N4IU callsign genealogy

Currently held by TESTERMAN, JOEL P

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 N4IU's current licensee, walking backwards.

  1. WA2ZDMcancelled· E
    Carter, Patricia MFLgranted 2017-08-29cancelled 2021-10-30
  2. KN4BEAcancelled· E
    Carter, Patricia MFLgranted 2017-02-23cancelled 2017-08-29

Successor callsigns

Callsigns held now by people who previously held N4IU.

  1. W2WJactive· E
    LINDER, ALAN ROHgranted 2016-11-28

All historical holders

Every license row we've seen with the callsign N4IU, oldest first.

  • TESTERMAN, JOEL P FL
    1998-12-17 → cancelled 2010-12-21
  • VAIL, ASHLEY M FL
    2011-01-07 → cancelled 2019-10-10
  • Carter, Patricia M PA
    2021-10-30 active
← Back to N4IU License history →