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

K0FBL callsign genealogy

Currently held by Riverbend Wireless And Mechanical Society

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 K0FBL's current licensee, walking backwards.

  1. KD0ZSAcancelled
    Riverbend Wireless And Mechanical SocietyMNgranted 2014-03-27cancelled 2022-07-01

Successor callsigns

Callsigns held now by people who previously held K0FBL.

  1. K0SWTactive· E
    Lewis, Franklin BMOgranted 2018-05-19

All historical holders

Every license row we've seen with the callsign K0FBL, oldest first.

  • Lewis, Franklin B MO
    2018-05-01 → cancelled 2018-05-19
  • Riverbend Wireless And Mechanical Society MN
    2022-07-01 active