CDC
AS13611 (CDC) announces at least two prefixes:
158.111.0.0/16
IPv4 address block not managed by the RIPE NCC
1970-01-01
NON-RIPE-NCC-MANAGED-ADDRESS-BLOCK
158.111.0.0-158.111.255.255
198.246.96.0/19
U.S. Center For Disease Control and Prevention
NET-198-246-96-0-1
198.246.96.0-198.246.127.255
0