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

KB4CO callsign genealogy

Currently held by CANNON, RANDY R

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 KB4CO's current licensee, walking backwards.

  1. KX4IScancelled· E
    O Neill, Carlos RTNgranted 2017-07-07cancelled 2018-03-06
  2. KN4JUIcancelled· E
    O Neill, Carlos RTNgranted 2017-07-07cancelled 2018-02-16
  3. KK4CROcancelled· G
    O Neill, Carlos RTNgranted 2017-07-07cancelled 2018-02-16
  4. KN4EACcancelled· T
    O Neill, Carlos RTNgranted 2017-06-16cancelled 2017-07-07

Successor callsigns

Callsigns held now by people who previously held KB4CO.

  1. K4SCVactive· E
    CANNON, RANDY RSCgranted 2026-01-28
  2. AE2Wactive· E
    O Neill, Carlos RTNgranted 2024-10-04

All historical holders

Every license row we've seen with the callsign KB4CO, oldest first.

  • CANNON, RANDY R SC
    1996-09-13 → cancelled 2006-01-10
  • O Neill, Carlos R TN
    2018-03-06 → cancelled 2024-10-04
← Back to KB4CO License history →