These are predominantly spoken in the western portions of Central Luzon in the Philippines.

One of them, Kapampangan, is the major language of the Pampanga-Mount Pinatubo area.

Globalization also threatened the language, with the younger generation more on using and speaking Tagalog and English, but promotion and everyday usage boosted the vitality of Kapampangan.

[1] Another Central Luzon language, Sambal or Sambali, experiences same situation, the speakers of the language are decreasing due to the globalization that many of the speakers of younger generation are shifting to Tagalog & Ilocano.

Some consonants were lost in Proto-Central Luzon when it evolved from either Proto-Malayo-Polynesian or Proto-Philippine.