IDCN can't be deregistered because the stock was never registered with the SEC. OTC companies with registered stock are required to file periodic reports with the SEC ("fully reporting). If they fall substantially behind they face suspension and revocation of the registration which deletes the ticker altogether and the company ceases to be public.
About 40-45% of the OTC stocks suspended by the SEC do not have registered stock. Most of those were originally registered but filed a Form 15 somewhere along the way to deregister and no longer be obligated to file with the SEC.
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