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

K9BWI callsign genealogy

Currently held by OLSON, RICHARD N

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 K9BWI's current licensee, walking backwards.

  1. K0ZVactive· E
    Stinson, Mary CCOgranted 2023-11-21
  2. N0UGXcancelled· E
    Stinson, Mary CCOgranted 2002-07-09cancelled 2003-07-09

Successor callsigns

Callsigns held now by people who previously held K9BWI.

  1. K0ZVcancelled· E
    OLSON, RICHARD NCOgranted 1999-07-27cancelled 2001-05-08

All historical holders

Every license row we've seen with the callsign K9BWI, oldest first.

  • OLSON, RICHARD N CO
    2011-02-25 → cancelled 2023-05-09
  • OLSON, RICHARD N
    — → cancelled 1999-07-27
← Back to K9BWI License history →