FINRA ID Number: U10 candidates remember to use an uppercase "U".
Your FINRA ID# is your CRD#. If you are registered with a member firm, you will be required to use your CRD#. If you are a non-member, you will be required to use the FINRA ID# assigned to you at the time of registration. If you are not familiar with your CRD#, please contact your member firm or FINRA's Gateway Call Center.