uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-12

KC0L callsign genealogy

Currently held by DINNEEN, JOHN F

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 KC0L's current licensee, walking backwards.

  1. K5JFDcancelled· E
    DINNEEN, JOHN FTXgranted 2003-07-29cancelled 2012-12-28
  2. KD5YOCcancelled· T
    DINNEEN, JOHN FTXgranted 2003-07-08cancelled 2003-07-29

Successor callsigns

Callsigns held now by people who previously held KC0L.

  1. W8RVactive· E
    COLEMAN, KENNETH EOHgranted 2020-09-22

All historical holders

Every license row we've seen with the callsign KC0L, oldest first.

  • COLEMAN, KENNETH E OH
    2007-03-17 → cancelled 2010-12-07
  • DINNEEN, JOHN F TX
    2022-09-30 active
← Back to KC0L License history →