198.143.0.0 - 198.143.31.255 Intercom Online Inc (NETBLK-INTERCOM-BLK-0) 198.143.64.0 - 198.143.95.255 MetroCon Communications (NETBLK-METROCON-2) 198.143.128.0 - 198.143.159.255 Itochu Technology, Inc. (NETBLK-ITOCHU-NET1-BLK) 198.143.192.0 - 198.143.223.255 BTI (NETBLK-BTI-1BLK)