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

N4SV callsign genealogy

Currently held by HART JR, JAMES 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 N4SV's current licensee, walking backwards.

  1. K4RIactive· E
    Maennel, Peter HTXgranted 2020-09-22
  2. N4LAMactive· E
    Martin, LuisFLgranted 2024-02-21
  3. KB2RZZactive· G
    Martin, Alexandra SFLgranted 2016-01-22
  4. KK4JAHcancelled· G
    Martin, Alexandra SFLgranted 2012-05-04cancelled 2016-01-22

Successor callsigns

Callsigns held now by people who previously held N4SV.

  1. K4RIcancelled· E
    South, William BVAgranted 2008-10-17cancelled 2008-11-18

All historical holders

Every license row we've seen with the callsign N4SV, oldest first.

  • HART JR, JAMES A GA
    1996-07-30 → cancelled 2008-07-31
  • South, William B VA
    2008-08-19 → cancelled 2008-10-17
  • South, William B IN
    2018-09-05 active
← Back to N4SV License history →