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

AI4QO callsign genealogy

Currently held by RAMJATTAN, HAROLD B

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 AI4QO's current licensee, walking backwards.

  1. AI4OQcancelled· E
    RAMJATTAN, HAROLD BFLgranted 2002-04-10cancelled 2006-07-27
  2. AA6YZcancelled· E
    RAMJATTAN, HAROLD BFLgranted 2002-04-10cancelled 2006-03-02
  3. AB4NF
    no FCC ULS record on file

Successor callsigns

Callsigns held now by people who previously held AI4QO.

  1. AJ4CScancelled· E
    RAMJATTAN, HAROLD BFLgranted 2012-04-07cancelled 2014-06-10
← Back to AI4QO License history →