The Gaddang language (also Gaddang or Cagayan) is spoken by up to 30,000 speakers (the Gaddang people) in the Philippines, particularly along the Magat and upper Cagayan rivers in the Region II provinces of Nueva Vizcaya and Isabela and by overseas migrants to countries in Asia, Australia, Canada, Europe, in the Middle East, United Kingdom and the United States. Most Gaddang speakers also speak Ilocano, the lingua franca of Northern Luzon, as well as Tagalog and English. Gaddang is associated with the "Christianized Gaddang" people, and is closely related to the highland ("non-Christian" in local literature) tongues of Ga'dang with 6,000 speakers, Cagayan Agta with less than 1,000 and Atta with 2,000 (although the Negrito Aeta and Atta are genetically unrelated to the Austronesian Gaddang), and more distantly to Ibanag, Itawis, Yogad, Isneg and Malaweg.