Robtex

Up: 189.217.24.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 189.217.28.0/23
Down right: 189.217.30.0/23

IP	Type	Hostname
189.217.31.107	A+PTR	customer-189-217-31-107.cablevision.net.mx
189.217.31.125	A+PTR	customer-189-217-31-125.cablevision.net.mx
189.217.31.216	A+PTR	customer-189-217-31-216.cablevision.net.mx
189.217.31.233	A+PTR	customer-189-217-31-233.cablevision.net.mx
189.217.31.236	A+PTR	customer-189-217-31-236.cablevision.net.mx
189.217.31.255	A+PTR	customer-189-217-31-255.cablevision.net.mx