Robtex

Up: 156.154.64.128/25
Can't show all results, try to descend to a more specific CIDR
Down left: 156.154.64.192/27
Down right: 156.154.64.224/27
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
156.154.64.192	A+PTR	pdns192.ultradns.com
156.154.64.193	A+PTR	pdns193.ultradns.com
156.154.64.194	A+PTR	pdns194.ultradns.com
156.154.64.195	A+PTR	pdns195.ultradns.com
156.154.64.196	A+PTR	pdns196.ultradns.com
156.154.64.196	A	nemp-test.com
156.154.64.197	A+PTR	pdns197.ultradns.com
156.154.64.198	A+PTR	pdns198.ultradns.com
156.154.64.199	A+PTR	pdns199.ultradns.com
156.154.64.200	A+PTR	pdns200.ultradns.com
156.154.64.201	A+PTR	pdns201.ultradns.com
156.154.64.202	A+PTR	pdns202.ultradns.com
156.154.64.203	A+PTR	pdns203.ultradns.com
156.154.64.204	A+PTR	pdns204.ultradns.com
156.154.64.205	A+PTR	pdns205.ultradns.com
156.154.64.206	A+PTR	pdns206.ultradns.com
156.154.64.207	A+PTR	pdns207.ultradns.com
156.154.64.208	A+PTR	pdns208.ultradns.com
156.154.64.209	A+PTR	pdns209.ultradns.com
156.154.64.210	A+PTR	pdns210.ultradns.com
156.154.64.211	A+PTR	pdns211.ultradns.com
156.154.64.211	A	ns5.ncrsaasdns.com
156.154.64.212	A+PTR	pdns212.ultradns.com
156.154.64.213	A+PTR	pdns213.ultradns.com
156.154.64.214	A+PTR	pdns214.ultradns.com
156.154.64.215	A	pdns215.ultradns.com
156.154.64.216	A+PTR	pdns216.ultradns.com
156.154.64.218	PTR	pdns218.ultradns.com
156.154.64.218	A	ns25.theprodnssolutions.com
156.154.64.218	A	ns5.theprodnssolutions.com
156.154.64.219	A+PTR	pdns219.ultradns.com
156.154.64.220	A+PTR	pdns220.ultradns.com
156.154.64.221	A+PTR	pdns221.ultradns.com
156.154.64.222	A	pdns222.ultradns.com
156.154.64.223	A+PTR	pdns223.ultradns.com
156.154.64.225	A+PTR	ns1.dns.alvea-services.com
156.154.64.226	A	ns1.profitability.net
156.154.64.227	A+PTR	ns1.acmedistributors.biz
156.154.64.228	PTR	ns1.i-horizons.com
156.154.64.229	A+PTR	pdns1.safenames.net
156.154.64.230	PTR	qdns1.qualitytech.com
156.154.64.231	A+PTR	ns1.itway.co.il
156.154.64.232	A+PTR	dns1.cyrusone.com
156.154.64.233	A+PTR	ns0.demysdns.net
156.154.64.245	A+PTR	pdns245.ultradns.com
156.154.64.246	PTR	ns1.fasttrackdns.com
156.154.64.246	A	ns1.dnsmanager.org
156.154.64.246	A	pdns246.ultradns.com
156.154.64.247	A+PTR	pdns247.ultradns.com
156.154.64.248	A+PTR	pdns248.ultradns.com
156.154.64.249	A+PTR	pdns249.ultradns.com
156.154.64.250	A+PTR	pdns250.ultradns.com
156.154.64.251	A+PTR	pdns251.ultradns.com
156.154.64.252	A+PTR	pdns252.ultradns.com
156.154.64.253	A+PTR	pdns253.ultradns.com