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

KR0K callsign genealogy

Currently held by COTTINGHAM JR, EARL W

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 KR0K's current licensee, walking backwards.

  1. WZ0Nactive· E
    ZORN, WALTER LORgranted 2021-02-02
  2. AC0TLcancelled· E
    ZORN, WALTER LCOgranted 2002-04-10cancelled 2010-10-23
  3. KF0OScancelled· E
    ZORN, WALTER LCOgranted 2002-04-10cancelled 2010-09-09
  4. KA0YRM
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held KR0K.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KR0K, oldest first.

  • COTTINGHAM JR, EARL W CO
    1996-09-09 → cancelled 2008-09-10
  • LARSON, LARRY E MN
    2018-07-24 active
← Back to KR0K License history →