Lettered Aracari resident in the lowlands of central South America. It occurs in western Amazonia from eastern Colombia south to central Bolivia and east, north of the Amazon, to the west bank of the lower Rio Negro in central Brazil and, south of the Amazon, east to Maranhão and Piauí; there also is a disjunct population in northeastern Brazil in Pernambuco and Alagoas (Haffer 1974, Hilty and Brown 1986, Ridgely and Greenfield 2001a, Short and Horne 2001).
Lettered Aracari is restricted to the lowlands. The upper elevational limit usually is ca 500 m (Hilty and Brown 1986, Ridgely and Greenfield 2001a, Walker et al. 2006), but locally it occurs up to 800-900 m (Hennessey et al. 2003, Schulenberg et al. 2010).