The Department of Interior, Bureau of Indian Affairs has published "Indian Entities Recognized and Eligible To Receive Services From the United States Bureau of Indian Affairs." on 8/11/09.
The list includes 564 tribal entities in the contiguous 48 states and Alaska.
Two tribes have been added to the list since the last publication. Federal relations have been reestablished with Wilton Rancheria pursuant to a court-ordered settlement and government-to-government relations were reestablished with the Delaware Tribe of Indians through its reorganization under federal statute, the Oklahoma Indian Welfare Act. In addition, name changes and corrections have also been made.
See the notice on the Access GPO web site: PDF, Text.