IBM
AS17390 (IBM) announces at least 51 prefixes:
129.41.46.0/24
1970-01-01
NET-129-41-46-0-2
129.41.46.0-129.41.47.255
129.41.47.0/24
129.41.56.0/24
NET-129-41-53-0-1
129.41.53.0-129.41.61.255
129.41.57.0/24
129.41.58.0/24
129.41.59.0/24
129.41.86.0/24
NET-129-41-84-0-1
129.41.84.0-129.41.87.255
129.41.87.0/24
170.224.144.0/24
NET-170-224-128-0-1
170.224.128.0-170.224.159.255
170.224.145.0/24
170.224.146.0/24
170.224.147.0/24
170.224.148.0/24
170.224.149.0/24
170.224.150.0/24
170.224.151.0/24
170.225.116.0/24
NET-170-225-112-0-1
170.225.112.0-170.225.127.255
170.225.117.0/24
170.225.118.0/24
170.225.119.0/24
170.225.122.0/24
170.225.123.0/24
170.225.126.0/24
170.225.127.0/24
192.148.16.0/24
NET-192-148-0-0-1
192.148.0.0-192.148.32.255
192.148.17.0/24
192.148.18.0/24
192.148.19.0/24
2620:1f7:100::/40
NET6-2620-1F7-1
2620:1f7::-2620:1f7:ffff:ffff:ffff:ffff:ffff:ffff
2620:1f7:200::/40
2620:1f7:500::/40
2620:1f7:700::/48
2620:1f7:701::/48
2620:1f7:702::/48
2620:1f7:703::/48
2620:1f7:800::/37
2620:1f7:948::/48
2620:1f7:949::/48
2620:1f7:1000::/37
2620:1f7:1800::/37
2620:1f7:2800::/37
2620:1f7:2947::/48
2620:1f7:2aad::/48
2620:1f7:3800::/38
2620:1f7:38c9::/48
2620:1f7:3a95::/48
2620:1f7:3d00::/40
2620:1f7:3d45::/48
2620:1f7:3d46::/48
2620:1f7:c030::/48
2620:1f7:c040::/48
1
AS17390
IBM (AS Path prepending)