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

AG4XX callsign genealogy

Currently held by Sawicki, Felix J

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 AG4XX's current licensee, walking backwards.

  1. KG4WWJcancelled· E
    Sawicki, Felix JFLgranted 1994-02-15cancelled 2003-01-31
  2. KE4JWXcancelled· G
    Sawicki, Felix JFLgranted 1994-02-15cancelled 2003-01-16

Successor callsigns

Callsigns held now by people who previously held AG4XX.

No current licensee on record previously held this callsign.

← Back to AG4XX License history →