ASN 21633 - U.S. Department of the InteriorOrganization : U.S. Department of the InteriorTotal Countries Listed: 1Total IP Ranges Listed: 12United States of America - IP Ranges: 12IP Range List137.227.96.0/21137.227.192.0/21161.160.0.0/19161.160.33.0/24161.160.34.0/23161.160.36.0/22161.160.40.0/21161.160.48.0/20161.160.128.0/19161.160.224.0/19205.173.0.0/24205.173.4.0/24