Robtex

Up: 207.70.40.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 207.70.40.0/23
Down right: 207.70.42.0/23

IP	Type	Hostname
207.70.42.9	PTR	cf462a09.static.spro.net
207.70.42.66	PTR	cf462a42.static.spro.net
207.70.42.88	PTR	cf462a58.static.spro.net
207.70.42.93	PTR	cf462a5d.static.spro.net
207.70.42.98	PTR	cf462a62.static.spro.net
207.70.42.103	PTR	cf462a67.static.spro.net
207.70.42.115	PTR	cf462a73.static.spro.net
207.70.42.127	PTR	cf462a7f.static.spro.net
207.70.42.142	PTR	cf462a8e.static.spro.net
207.70.42.196	PTR	cf462ac4.static.spro.net
207.70.42.202	PTR	cf462aca.static.spro.net
207.70.42.222	PTR	cf462ade.static.spro.net
207.70.43.9	PTR	cf462b09.static.spro.net
207.70.43.23	PTR	cf462b17.static.spro.net
207.70.43.32	PTR	cf462b20.static.spro.net
207.70.43.33	PTR	cf462b21.static.spro.net
207.70.43.62	PTR	cf462b3e.static.spro.net
207.70.43.103	PTR	cf462b67.static.spro.net
207.70.43.124	PTR	cf462b7c.static.spro.net
207.70.43.127	PTR	cf462b7f.static.spro.net
207.70.43.133	PTR	cf462b85.static.spro.net
207.70.43.155	PTR	cf462b9b.static.spro.net
207.70.43.194	PTR	cf462bc2.static.spro.net
207.70.43.200	PTR	cf462bc8.static.spro.net
207.70.43.223	PTR	cf462bdf.static.spro.net
207.70.43.233	PTR	cf462be9.static.spro.net