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

AB9HY callsign genealogy

Currently held by Schrum, John 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 AB9HY's current licensee, walking backwards.

  1. KC9CKVcancelled· E
    Schrum, John AILgranted 1999-10-09cancelled 2003-09-25
  2. KB9VHGcancelled· G
    Schrum, John AILgranted 1999-10-09cancelled 2002-09-19

Successor callsigns

Callsigns held now by people who previously held AB9HY.

No current licensee on record previously held this callsign.

← Back to AB9HY License history →