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

KB5SZ callsign genealogy

Currently held by CROWE, RONALD D

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 KB5SZ's current licensee, walking backwards.

  1. K5RDCactive· T
    Conrad, Randy DTXgranted 2019-05-31
  2. KF5BSUcancelled· T
    Conrad, Randy DTXgranted 2009-06-18cancelled 2009-07-07

Successor callsigns

Callsigns held now by people who previously held KB5SZ.

  1. KK5CQcancelled· A
    CROWE, RONALD DTXgranted 2016-02-18cancelled 2016-12-24
  2. K5RDCcancelled· A
    CROWE, RONALD DTXgranted 1999-07-20cancelled 2000-10-07

All historical holders

Every license row we've seen with the callsign KB5SZ, oldest first.

  • CROWE, RONALD D TX
    2000-10-07 → cancelled 2006-05-13
  • CROWE, RONALD D
    — → cancelled 1999-07-20
← Back to KB5SZ License history →