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

KK7OO callsign genealogy

Currently held by NORWOOD MR, THOMAS S

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 KK7OO's current licensee, walking backwards.

  1. KK6BDcancelled· A
    NORWOOD MR, THOMAS SNVgranted 2016-01-19cancelled 2019-11-26
  2. KK6TNcancelled· A
    NORWOOD MR, THOMAS SCAgranted 2015-01-30cancelled 2016-01-19
  3. K6TSNcancelled· A
    NORWOOD, THOMAS SCAgranted 2010-01-15cancelled 2015-01-30
  4. N6LXUcancelled· A
    NORWOOD, THOMAS SCAgranted 2008-07-30cancelled 2010-01-15
  5. KO6BDcancelled· A
    NORWOOD, THOMAS Scancelled 1998-10-27

Successor callsigns

Callsigns held now by people who previously held KK7OO.

  1. KK7PDactive· A
    WILLIAMS, BILL TUTgranted 2025-07-16
  2. KK5TOcancelled· A
    NORWOOD MR, THOMAS STXgranted 2021-12-07cancelled 2023-10-06
  3. KK6Pcancelled
    ROLLING RANCH CONTEST CLUBCAgranted 2013-03-19cancelled 2023-01-24

All historical holders

Every license row we've seen with the callsign KK7OO, oldest first.

  • Rolling Ranch Contest Club CA
    2009-12-08 → cancelled 2013-03-19
  • NORWOOD MR, THOMAS S NV
    2019-11-26 → cancelled 2021-12-07
  • WILLIAMS, BILL T
    — → cancelled 1998-08-10
← Back to KK7OO License history →