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

AD4Y callsign genealogy

Currently held by LIN, SI HONG

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 AD4Y's current licensee, walking backwards.

  1. AD4BPactive· E
    PURYEAR, ROBERT ESCgranted 2022-06-04
  2. KG4REPcancelled· E
    PURYEAR, ROBERT ESCgranted 2022-01-28cancelled 2022-06-04
  3. KO4VVPcancelled· G
    Puryear, Robert ESCgranted 2022-01-10cancelled 2022-01-28

Successor callsigns

Callsigns held now by people who previously held AD4Y.

  1. N4NMactive· E
    LEWIS, CHARLES MALgranted 2026-09-05
  2. WZ1Ycancelled· E
    ORAMA, MIGUELFLgranted 2016-03-11cancelled 2016-09-28

All historical holders

Every license row we've seen with the callsign AD4Y, oldest first.

  • LIN, SI HONG VA
    1999-02-23 → cancelled 2011-02-24
  • ORAMA, MIGUEL FL
    2011-03-15 → cancelled 2016-03-11
  • PETERSON JR, ROBERT W KY
    2018-03-30 active
← Back to AD4Y License history →