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

K9NI callsign genealogy

Currently held by MARTIN, CAITLYN M

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 K9NI's current licensee, walking backwards.

  1. KC9NJDcancelled· E
    Martin, Dominic AINgranted 2018-02-14cancelled 2020-02-19

Successor callsigns

Callsigns held now by people who previously held K9NI.

  1. W4TUactive· E
    MARTIN, CAITLYN MVAgranted 2018-01-30
  2. K5NMXcancelled· E
    SWAIM, FREDERICK MILgranted 2004-07-20cancelled 2009-01-10
  3. KC9TVcancelled· E
    JONES, TIMOTHY LINgranted 1999-03-03cancelled 2002-04-03

All historical holders

Every license row we've seen with the callsign K9NI, oldest first.

  • SWAIM, FREDERICK M NM
    2001-10-19 → cancelled 2004-07-20
  • MARTIN, CAITLYN M NC
    2017-11-28 → cancelled 2018-01-30
  • Martin, Dominic A IN
    2020-02-19 active
  • JONES, TIMOTHY L
    — → cancelled 1999-03-03
← Back to K9NI License history →