L1 users: 1,000 (1982 SIL).
Calabarzon region: Quezon province coastal areas; Central Luzon region: east Nueva Ecija province, Sierra Madre range, and San Miguel town; Bulacan province, many in remote San Miguel.
None known. Reportedly not similar to other languages. Lexical similarity: 34% with Northern Alta [aqn].
Also use Filipino [fil].
Latin script [Latn], no longer in use.