Rambus
AS19099 (RAMBUS-4) announces at least two prefixes:
192.86.86.0/24
Rambus Inc.
about a second ago
NET-192-86-86-0-1
192.86.86.0-192.86.86.255
198.147.243.0/24
NET-198-147-243-0-1
198.147.243.0-198.147.243.255
0