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

K7RLK callsign genealogy

Currently held by Kalkwarf, Robert 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 K7RLK's current licensee, walking backwards.

  1. KI7TFDcancelled· T
    KALISCH, ROBERT LIDgranted 2018-01-02cancelled 2018-01-23

Successor callsigns

Callsigns held now by people who previously held K7RLK.

  1. W7WOcancelled· E
    Kalkwarf, Robert LWAgranted 2016-03-19cancelled 2016-04-01

All historical holders

Every license row we've seen with the callsign K7RLK, oldest first.

  • Kalkwarf, Robert L WA
    1998-09-23 → cancelled 2006-05-31
  • KALISCH, ROBERT L ID
    2018-01-23 active
← Back to K7RLK License history →