.us Domain Space

NTIA supervises the administration of the DNS country code top level domain for the United States (usTLD or .us domain) through a contract, the most recent of which was awarded to Neustar, Inc. in 2007. 

Table of Contents

2013 Contract

  • Federal Register Notice — Country Code Top-Level Domain (ccTLD) for the United States; Policies and Requirements; Comments Request

2007 Contract

2001 Contract

Enhancement of .US name space