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

W2WJO callsign genealogy

Currently held by O'Brien, Walter 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 W2WJO's current licensee, walking backwards.

  1. KC2LBOcancelled· G
    O'BRIEN, WALTER JNJgranted 2003-03-21cancelled 2003-09-30

Successor callsigns

Callsigns held now by people who previously held W2WJO.

  1. WO2Uactive· E
    O'BRIEN, WALTER JNJgranted 2017-01-31
← Back to W2WJO License history →