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

KK5TO 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 KK5TO's current licensee, walking backwards.

  1. KK7OOcancelled· A
    NORWOOD MR, THOMAS SNVgranted 2019-11-26cancelled 2021-12-07
  2. KK6BDcancelled· A
    NORWOOD MR, THOMAS SNVgranted 2016-01-19cancelled 2019-11-26
  3. KK6TNcancelled· A
    NORWOOD MR, THOMAS SCAgranted 2015-01-30cancelled 2016-01-19
  4. K6TSNcancelled· A
    NORWOOD, THOMAS SCAgranted 2010-01-15cancelled 2015-01-30
  5. N6LXUcancelled· A
    NORWOOD, THOMAS SCAgranted 2008-07-30cancelled 2010-01-15
  6. KO6BDcancelled· A
    NORWOOD, THOMAS Scancelled 1998-10-27

Successor callsigns

Callsigns held now by people who previously held KK5TO.

  1. KK7TOactive· A
    NORWOOD MR, THOMAS SAZgranted 2023-10-06
  2. NO5BSactive· E
    DEINES, JEFFREY MTXgranted 2020-01-21

All historical holders

Every license row we've seen with the callsign KK5TO, oldest first.

  • DEINES, JEFFREY M TX
    1996-02-29 → cancelled 2000-03-03
  • NORWOOD MR, THOMAS S TX
    2021-12-07 → cancelled 2023-10-06