When information about more than one individual is in one record filed under your social security number, you may receive the information about you and the fact of entitlement and the amount of benefits payable to other persons based on your record. You may receive information about yourself or others, which is filed under someone else's social security number, if that information affects your entitlement to social security benefits or the amount of those benefits.
20 C.F.R. §401.60