Robtex

Up: 149.255.100.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 149.255.100.0/24
Down right: 149.255.101.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
149.255.100.0	A+PTR	0.100.255.149.in-addr.arpa
149.255.100.67	A+PTR	ns2.openitc.net
149.255.100.67	A	67.100.255.149.in-addr.arpa
149.255.100.69	A	ns8.openitc.net
149.255.100.70	PTR	mx2.openitc.co.uk
149.255.100.74	A	ns4.openitc.net
149.255.100.80	PTR	openitc.co.uk
149.255.100.80	A	mail.openitc.net
149.255.100.80	A	5f9ad0a8.in-addr.xenvz.co.uk
149.255.100.88	A+PTR	mail.openitc.co.uk
149.255.100.88	A	mx2.openitc.co.uk
149.255.100.102	A	beta.smesites.co.uk
149.255.100.102	A	mail.smesites.co.uk
149.255.100.102	A	babholdingshk.com
149.255.100.105	PTR	ns1.smesites.co.uk
149.255.100.106	PTR	ns2.smesites.co.uk
149.255.100.109	A	naijaeat.com
149.255.100.109	A	towinfo.co.uk
149.255.100.109	A	www.jamessimpson.co.uk
149.255.100.110	A	mail.starttriathlon.com
149.255.100.134	PTR	mx2.modernadmin.com
149.255.100.227	A+PTR	227.100.255.149.in-addr.arpa
149.255.100.231	A+PTR	231.100.255.149.in-addr.arpa
149.255.101.0	A+PTR	0.101.255.149.in-addr.arpa
149.255.101.8	A	ns1.ikhost.net
149.255.101.8	A	ns1.modernadmin.com
149.255.101.10	A+PTR	mail.modernadmin.com
149.255.101.12	A+PTR	clients.ikhost.net
149.255.101.13	PTR	www.ikhost.net
149.255.101.13	A	mail.ikhost.net
149.255.101.13	A	secure.ikhost.net
149.255.101.14	A	ns13.ikhost.net
149.255.101.14	A	ns14.ikhost.net
149.255.101.15	PTR	web1.modernadmin.com
149.255.101.15	A	shared.modernadmin.com
149.255.101.15	A	mess.modernadmin.com
149.255.101.24	PTR	contact.electronicmailings.com
149.255.101.24	A	seanmcr.co.uk
149.255.101.24	A	seany.us
149.255.101.48	A	bacon.host
149.255.101.132	A+PTR	132.101.255.149.in-addr.arpa
149.255.101.146	PTR	149.255.101.146
149.255.101.146	A	mail.jamesbarriedesign.com
149.255.101.146	A	mail.writingintotheether.com
149.255.101.148	PTR	149.255.101.148
149.255.101.218	PTR	149.255.101.218
149.255.101.219	A+PTR	219.101.255.149.in-addr.arpa
149.255.101.220	A+PTR	220.101.255.149.in-addr.arpa
149.255.101.235	A+PTR	235.101.255.149.in-addr.arpa