USDOS
AS6966 (USDOS) announces at least 13 prefixes:
169.252.0.0/16
U.S. Department of State
1970-01-01
NET-169-252-0-0-1
169.252.0.0-169.253.255.255
169.252.0.0/17
169.252.24.0/22
169.252.80.0/20
169.252.80.0/24
169.252.81.0/24
169.252.128.0/17
169.253.0.0/16
169.253.4.0/24
169.253.160.0/19
169.253.162.0/24
169.253.172.0/22
169.253.188.0/24
0