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

K7NL callsign genealogy

Currently held by Witzke, Richard 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 K7NL's current licensee, walking backwards.

  1. W7DKUactive· T
    HARPER, DANAAZgranted 2021-04-20
  2. KJ7WMQcancelled· T
    HARPER, DANAAZgranted 2021-04-01cancelled 2021-04-20

Successor callsigns

Callsigns held now by people who previously held K7NL.

  1. W7SNactive· E
    SHELDON, DAVID RAZgranted 2016-08-02

All historical holders

Every license row we've seen with the callsign K7NL, oldest first.

  • SHELDON, DAVID R AZ
    2007-03-01 → cancelled 2016-08-02
  • Witzke, Richard A AZ
    2018-08-21 active
← Back to K7NL License history →