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

KB0BOO callsign genealogy

Currently held by FISCUS, JANET 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 KB0BOO's current licensee, walking backwards.

  1. KF7OQQcancelled· G
    ROYLANCE, JOHN AUTgranted 2020-12-23cancelled 2022-05-06

Successor callsigns

Callsigns held now by people who previously held KB0BOO.

  1. KF7JARactive· G
    ROYLANCE, JOHN AUTgranted 2022-06-01

All historical holders

Every license row we've seen with the callsign KB0BOO, oldest first.

  • FISCUS, JANET M CO
    1988-02-23 → cancelled 2000-02-24
  • ROYLANCE, JOHN A UT
    2022-05-06 → cancelled 2022-06-01