Robtex

Up: 198.51.44.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 198.51.44.0/25
Down right: 198.51.44.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.51.44.1	PTR	dns1.p01.nsone.net
198.51.44.1	A	dns1.p01.d.section.io
198.51.44.1	A	ns1.marsble.com
198.51.44.2	A+PTR	dns1.p02.nsone.net
198.51.44.2	A	ext1.ns.cantusuk.com
198.51.44.2	A	ns-1.perimeterx.com
198.51.44.3	PTR	dns1.p03.nsone.net
198.51.44.3	A	ns1.spinacz.org
198.51.44.3	A	dns1.inmobicdn.com
198.51.44.4	A+PTR	dns1.p04.nsone.net
198.51.44.4	A	pantek-scrues.com
198.51.44.4	A	dns1.p04.d.section.io
198.51.44.5	A+PTR	dns1.p05.nsone.net
198.51.44.5	A	ep1ns01.mckesson.com
198.51.44.5	A	dns1.p05.d.section.io
198.51.44.6	A+PTR	dns1.p06.nsone.net
198.51.44.6	A	dns1.dynax.co
198.51.44.6	A	ns05.zazzle.net
198.51.44.7	A+PTR	dns1.p07.nsone.net
198.51.44.7	A	ns1.voxter.net
198.51.44.7	A	dns1.p07.d.section.io
198.51.44.8	A+PTR	dns1.p08.nsone.net
198.51.44.8	A+PTR	ns8.demysdns.com
198.51.44.8	A	dns1.p08.d.section.io
198.51.44.9	A+PTR	dns1.p09.nsone.net
198.51.44.9	PTR	ns4.demysdns.co.uk
198.51.44.9	A	ns5.pinterest.com
198.51.44.10	A+PTR	dns1.p10.nsone.net
198.51.44.10	A	ns1.luizfrazao.com
198.51.44.10	A	ns0.demysdns.net
198.51.44.65	PTR	dns3.p01.nsone.net
198.51.44.65	A	ns19090.1slb.org
198.51.44.65	A	ns3.marsble.net
198.51.44.66	A+PTR	dns3.p02.nsone.net
198.51.44.66	A	dns3.p02.d.section.io
198.51.44.66	A	ns-3.perimeterx.com
198.51.44.67	A+PTR	dns3.p03.nsone.net
198.51.44.67	A	ns11.sunhostbd.com
198.51.44.67	A	ns3.sheenomo.com
198.51.44.68	A+PTR	dns3.p04.nsone.net
198.51.44.68	A	ns11.sunhostbd.com
198.51.44.69	A+PTR	dns3.p05.nsone.net
198.51.44.69	A	ep1ns03.mckesson.org
198.51.44.69	A	dns3.p05.d.section.io
198.51.44.70	A+PTR	dns3.p06.nsone.net
198.51.44.70	A	dns3.p06.d.section.io
198.51.44.70	A	ns03.dns.fox
198.51.44.71	A+PTR	dns3.p07.nsone.net
198.51.44.71	A	ns3.amplahost.com
198.51.44.71	A	ns2.kitepter.com
198.51.44.72	A+PTR	dns3.p08.nsone.net
198.51.44.72	A	ns03.firstcitizens.com
198.51.44.72	A	dns3.p08.d.section.io
198.51.44.73	A+PTR	dns3.p09.nsone.net
198.51.44.73	PTR	ns6.demysdns.co.uk
198.51.44.73	A	dns3.global01.nsone.net.cn
198.51.44.74	A+PTR	dns3.p10.nsone.net
198.51.44.74	A	dns3.comlaude-dns.co.uk
198.51.44.74	A	nsusa.comlaude.net