OBSIDIAN-CORE
AS211352 (OBSIDIAN-CORE) announces at least two prefixes:
217.147.12.0/24
1970-01-01
217.147.12.0-217.147.12.255
2a10:4646:4c0::/48
2a10:4646:4c0::-2a10:4646:4c0:ffff:ffff:ffff:ffff:ffff
0