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

AD4GS callsign genealogy

Currently held by Sloan, Gregg L

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 AD4GS's current licensee, walking backwards.

  1. KX4GLScancelled· E
    Sloan, Gregg LVAgranted 2022-10-29cancelled 2022-12-03
  2. KQ4DFIcancelled· G
    Sloan, Gregg LVAgranted 2022-09-14cancelled 2022-10-29

Successor callsigns

Callsigns held now by people who previously held AD4GS.

  1. NM4Jcancelled· E
    RICKMAN, HENRY EVAgranted 2008-10-02cancelled 2018-02-26

All historical holders

Every license row we've seen with the callsign AD4GS, oldest first.

  • SHEETS, GARY L GA
    2010-05-21 → cancelled 2022-05-24
  • Sloan, Gregg L VA
    2022-12-03 active
  • RICKMAN, HENRY E
    — → cancelled 1998-12-30
← Back to AD4GS License history →