Robtex

Up: 192.174.68.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 192.174.68.0/25
Down right: 192.174.68.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
192.174.68.1	A+PTR	ns1.markmonitor.com
192.174.68.2	A+PTR	ns3.markmonitor.com
192.174.68.3	A+PTR	ns5.markmonitor.com
192.174.68.4	A+PTR	ns7.markmonitor.com
192.174.68.5	A+PTR	ha1.markmonitor.zone
192.174.68.6	A+PTR	ns1.world4you.at
192.174.68.8	A+PTR	ns.udag.de
192.174.68.8	A	ns1.udag.de
192.174.68.96	A+PTR	ns1.ntbs.at
192.174.68.97	A+PTR	ns2.netim.net
192.174.68.97	A	b.ns.domene.si
192.174.68.97	A	ns2.francedns.com
192.174.68.98	A	ns1.nic.at
192.174.68.99	A+PTR	psec1.rcode0.net
192.174.68.99	A+PTR	psec1.rcode0.at
192.174.68.99	A+PTR	psec1.rcode0.com
192.174.68.100	PTR	maggie.goeast.ch
192.174.68.100	PTR	ns2.is-fun.net
192.174.68.100	PTR	sec1.rcode0.net
192.174.68.101	A+PTR	ns2.lemarit.de
192.174.68.102	PTR	nsec1.customer-auth.net
192.174.68.102	A	a.managed-ns.com
192.174.68.102	A	ns1.somdigital.net
192.174.68.103	PTR	ns1.nic53.net
192.174.68.103	A	ns1.industriehof.net
192.174.68.103	A	nits-ns.de
192.174.68.104	PTR	ns1.anycastdns.ch
192.174.68.104	PTR	ns.domrobot.com
192.174.68.104	PTR	ns.inwx.de
192.174.68.105	A+PTR	dns2.a1.net
192.174.68.105	A	dns1.sec-dns.at
192.174.68.105	A	dns2.telekom.at
192.174.68.106	PTR	ns4.eurodns.com
192.174.68.106	A	ns6.avira-ns.de
192.174.68.106	A	first.avira-ns.de
192.174.68.107	A	dns.x-ion.de
192.174.68.108	A	ns01.ondns.de
192.174.68.110	PTR	ns-c.eurodns.org
192.174.68.110	A	ns-c.eurodns.eu
192.174.68.111	A+PTR	ns4.prodns.net
192.174.68.112	A+PTR	a.dns.ie
192.174.68.112	A	ns4.abedns.net
192.174.68.121	A	ns2.excedonet.net
192.174.68.200	A	mail.ifound.at
192.174.68.200	A	mail.handbuch-notruf.at
192.174.68.200	A	mail.internetfoundation.at