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

NY5N callsign genealogy

Currently held by RETTKE, GRANT

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 NY5N's current licensee, walking backwards.

  1. W0GCRcancelled· E
    RETTKE, GRANTWIgranted 2019-10-04cancelled 2020-05-29

Successor callsigns

Callsigns held now by people who previously held NY5N.

  1. W0GCRcancelled· E
    RETTKE, GRANTWIgranted 2019-10-04cancelled 2020-05-29

All historical holders

Every license row we've seen with the callsign NY5N, oldest first.

  • JOHNSTON, LLOYD B OK
    2004-12-14 → cancelled 2017-03-14
  • RETTKE, GRANT WI
    2017-04-01 → cancelled 2019-10-04
  • RETTKE, GRANT WI
    2020-05-29 active
← Back to NY5N License history →