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Confidence: Medium · Source: FCC ULS · As of 2026-09-14

KB0PYO callsign genealogy

Currently held by BROWN, MARK 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 KB0PYO's current licensee, walking backwards.

The current licensee has not held any other callsign on record.

Successor callsigns

Callsigns held now by people who previously held KB0PYO.

  1. KD0BTWcancelled· T
    BROWN, MARY AMNgranted 2004-10-27cancelled 2008-07-15