A
- (Province of Bataan) Apollo
- (Province of Nueva Ecija) Aguinaldo
- (Province of Nueva Ecija) Antonio
- (Province of Nueva Ecija) Aduas Sur
- (Province of Pampanga) Ayala
- (Province of Pampanga) Ascomo
- (Province of Zambales) Aglao
- (Province of Nueva Ecija) Aduas Norte
- (Province of Nueva Ecija) Aquino
- (Province of Bulacan) Abangan
- (Province of Tarlac) Alvindia Segundo
- (Province of Tarlac) Amucao
- (Province of Pampanga) Acli
- (Province of Tarlac) Almendras
- (Province of Tarlac) Amacalan
- (Province of Bulacan) Akle
- (Province of Tarlac) Arminia
- (Province of Nueva Ecija) Antipolo
- (Province of Nueva Ecija) Agbannawag
- (Province of Pampanga) Arenas
- (Province of Pampanga) Anao
- (Province of Nueva Ecija) Alua
- (Province of Zambales) Amuñgan
- (Province of Pampanga) Angeles City