uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KD6IJU callsign genealogy

Currently held by PALMER JR, WILLIAM J

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 KD6IJU's current licensee, walking backwards.

  1. K4SCVactive· E
    CANNON, RANDY RSCgranted 2026-01-28
  2. KB4COcancelled· E
    O Neill, Carlos RTNgranted 2018-03-06cancelled 2024-10-04
  3. KX4IScancelled· E
    O Neill, Carlos RTNgranted 2017-07-07cancelled 2018-03-06
  4. KN4JUIcancelled· E
    O Neill, Carlos RTNgranted 2017-07-07cancelled 2018-02-16
  5. KK4CROcancelled· G
    O Neill, Carlos RTNgranted 2017-07-07cancelled 2018-02-16
  6. KN4EACcancelled· T
    O Neill, Carlos RTNgranted 2017-06-16cancelled 2017-07-07

Successor callsigns

Callsigns held now by people who previously held KD6IJU.

  1. W4AMGcancelled· G
    PALMER JR, WILLIAM JALgranted 2003-09-26cancelled 2004-05-08

All historical holders

Every license row we've seen with the callsign KD6IJU, oldest first.

  • PALMER JR, WILLIAM J AL
    2002-03-29 → cancelled 2003-09-26
  • PALMER JR, WILLIAM J
    — → cancelled 1998-03-03
← Back to KD6IJU License history →