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

KK9P callsign genealogy

Currently held by Sarkar, Bimal

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 KK9P's current licensee, walking backwards.

  1. WA6DUcancelled· E
    HIRAISHI, KAZUEORgranted 2016-07-26cancelled 2021-07-31
  2. K6DULcancelled· E
    HIRAISHI, KAZUEORgranted 2014-07-04cancelled 2016-07-26
  3. KG7JOFcancelled· G
    HIRAISHI, KAZUEORgranted 2014-03-10cancelled 2014-07-04

Successor callsigns

Callsigns held now by people who previously held KK9P.

  1. KR5Zactive· E
    Frazier, Caleb ATXgranted 2019-07-12

All historical holders

Every license row we've seen with the callsign KK9P, oldest first.

  • Sarkar, Bimal IL
    2005-04-15 → cancelled 2017-06-21
  • Frazier, Caleb A TX
    2017-07-11 → cancelled 2019-07-12
  • HIRAISHI, KAZUE OR
    2021-07-31 active
← Back to KK9P License history →