uls-tracker
Sign in
Confidence: Medium · Source: FCC ULS · As of 2026-09-14

K1BYU callsign genealogy

Currently held by JOHNSON, DARRELL

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 K1BYU's current licensee, walking backwards.

  1. KD7EHAcancelled· T
    JOHNSON, DARRELLcancelled 1999-04-08

Successor callsigns

Callsigns held now by people who previously held K1BYU.

No current licensee on record previously held this callsign.