X0203 3 2010-03-22 1 0001162027 ALLIANCEBERNSTEIN NATIONAL MUNICIPAL INCOME FUND AFB 0001235137 HOWARD JOHN B C/O ALLIANCEBERNSTEIN L.P. 1345 AVENUE OF THE AMERICAS NEW YORK NY 10105 0 0 0 1 SVP & CFO of fund's adviser /s/ John B. Howard 2010-03-30