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

AG7BM callsign genealogy

Currently held by Blaszczak, Michael 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 AG7BM'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 AG7BM.

  1. K7ZCZactive· E
    Blaszczak, Michael AWAgranted 2026-06-24