Robtex

Up: 180.148.48.0/21
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Down left: 180.148.48.0/23
Down right: 180.148.50.0/23

IP	Type	Hostname
180.148.48.10	PTR	host-18048110.fivenetwork.com
180.148.48.32	PTR	host-18048148.fivenetwork.com
180.148.48.37	PTR	host-18048148.fivenetwork.com
180.148.48.73	PTR	host-18048173.fivenetwork.com
180.148.48.79	PTR	host-18048179.fivenetwork.com
180.148.48.127	PTR	host-18048227.fivenetwork.com
180.148.48.133	PTR	host-18048248.fivenetwork.com
180.148.48.147	PTR	host-18048248.fivenetwork.com
180.148.48.159	PTR	host-18048259.fivenetwork.com
180.148.48.172	PTR	host-18048272.fivenetwork.com
180.148.48.182	PTR	host-18048282.fivenetwork.com
180.148.48.217	PTR	host-18048317.fivenetwork.com
180.148.48.240	PTR	host-18048480.fivenetwork.com
180.148.48.245	PTR	host-18048485.fivenetwork.com
180.148.48.248	PTR	host-18048488.fivenetwork.com
180.148.49.128	PTR	host-18049228.fivenetwork.com
180.148.49.179	PTR	host-18049279.fivenetwork.com
180.148.49.190	PTR	host-18049290.fivenetwork.com
180.148.49.192	PTR	host-18049292.fivenetwork.com
180.148.50.106	PTR	host-18050206.fivenetwork.com
180.148.51.11	PTR	host-18051111.fivenetwork.com
180.148.51.131	PTR	host-18051231.fivenetwork.com
180.148.51.152	PTR	host-18051252.fivenetwork.com
180.148.51.168	PTR	host-18051268.fivenetwork.com
180.148.51.187	PTR	host-18051287.fivenetwork.com
180.148.51.209	PTR	host-18051309.fivenetwork.com