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

KL0CK callsign genealogy

Currently held by Mills, Phil D

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 KL0CK's current licensee, walking backwards.

  1. KD4FXcancelled· E
    Mills, Phil DAKgranted 2021-11-19cancelled 2026-01-16
  2. N9TDactive· E
    FRONEK, DEREK MINgranted 2023-12-08
  3. KD9MEQcancelled· E
    FRONEK, DEREK MINgranted 2018-12-19cancelled 2023-12-08

Successor callsigns

Callsigns held now by people who previously held KL0CK.

No current licensee on record previously held this callsign.

All historical holders

Every license row we've seen with the callsign KL0CK, oldest first.

  • COLETTE, GEORGE A AL
    2006-09-21 → cancelled 2018-12-20
  • Mills, Phil D MO
    2026-01-16 active
← Back to KL0CK License history →