Robtex

Up: 156.154.70.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 156.154.70.0/25
Down right: 156.154.70.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
156.154.70.1	A+PTR	rdns1.ultradns.net
156.154.70.1	A	ns1.dnsadvantage.com
156.154.70.1	A	oesltufg4.com
156.154.70.10	PTR	rdns1.ultradns.net
156.154.70.10	A+PTR	rudns1.ultradns.net
156.154.70.10	A	sliced-code.com
156.154.70.36	A+PTR	rdns36a.ultradns.net
156.154.70.42	A+PTR	mcd1.ultradns.net
156.154.70.44	A	ns1.cyrusone.com