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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

AB2TD callsign genealogy

Currently held by JOHNSON, ANDREW 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 AB2TD's current licensee, walking backwards.

  1. KC2LZBcancelled· E
    JOHNSON, ANDREW JNYgranted 2003-09-23cancelled 2004-10-21

Successor callsigns

Callsigns held now by people who previously held AB2TD.

  1. AJ2Nactive· E
    JOHNSON, ANDREW JNYgranted 2025-01-29