The United States Department of Commerce's National Telecommunication and Information Administration has governed the IANA functions so far, and has called for comments on its IANA contract. I was one of those who commented, and all comments are published at page
http://www.ntia.doc.gov/comments/110207099-1099-01/
Comments on NTIA's Notice Of Inquiry on IANA by Sivasubramanian M, India