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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

KB5RK callsign genealogy

Currently held by Rosser III, James A

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 KB5RK's current licensee, walking backwards.

  1. K1JARactive· T
    RAHN, JONATHAN AGAgranted 2020-10-16
  2. KO4HMEcancelled· T
    RAHN, JONATHAN AGAgranted 2020-09-18cancelled 2020-10-16

Successor callsigns

Callsigns held now by people who previously held KB5RK.

  1. AD5TTcancelled· E
    Rosser III, James ATXgranted 2016-08-09cancelled 2019-10-29

All historical holders

Every license row we've seen with the callsign KB5RK, oldest first.

  • DAIGH, ROBERT C NM
    2003-11-25 → cancelled 2003-12-18
  • Rosser III, James A TX
    2014-02-15 → cancelled 2016-08-09
← Back to KB5RK License history →