Robtex

Up: 77.91.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 77.91.248.0/22
Down right: 77.91.252.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
77.91.248.10	A	ns01.guardian.co.uk
77.91.248.30	PTR	www.guardian.co.uk
77.91.248.30	A	kablenet.com
77.91.248.38	PTR	talk.guardian.co.uk
77.91.248.51	PTR	image.guardian.co.uk
77.91.248.72	PTR	dns04.guardian.co.uk
77.91.248.73	A	mx01.guardian.co.uk
77.91.248.74	A	mx02.guardian.co.uk
77.91.248.75	A+PTR	purple01.guardian.co.uk
77.91.248.77	A	nat-77-248.guardian.co.uk
77.91.248.82	A	n-82-248.guardian.co.uk
77.91.248.112	A	aqua.guardian.co.uk
77.91.248.123	A+PTR	nat-123-248.guardian.co.uk
77.91.248.225	PTR	syndication.guardian.co.uk
77.91.248.225	A	scott-trust.org
77.91.248.225	A	scott-trust.co.uk
77.91.248.253	PTR	mail.guardianprofessional.co.uk
77.91.248.253	A	mail.learnevaluations.co.uk
77.91.248.253	A	mail.survivalrivals.com
77.91.249.10	A+PTR	ns02.guardian.co.uk
77.91.249.30	PTR	www.guardian.co.uk
77.91.249.30	A	smarthealthcare.com
77.91.249.38	PTR	talk.guardian.co.uk
77.91.249.51	PTR	image.guardian.co.uk
77.91.249.62	A	nat-62-249.guardian.co.uk
77.91.249.72	PTR	dns02.guardian.co.uk
77.91.249.73	A	mx03.guardian.co.uk
77.91.249.74	A	mx04.guardian.co.uk
77.91.249.76	A	nat-76-249.guardian.co.uk
77.91.249.108	PTR	webmail.guardian.co.uk
77.91.249.108	A+PTR	webmail02.guardian.co.uk
77.91.249.112	A+PTR	marina.guardian.co.uk
77.91.249.115	A	n-115-249.guardian.co.uk
77.91.249.118	A	calm.guardian.co.uk
77.91.249.122	A	n-122-249.guardian.co.uk
77.91.249.123	A+PTR	nat-123-249.guardian.co.uk
77.91.250.72	A	dc1.vendors.theguardian.com
77.91.250.72	A	dc1.vpn.theguardian.com
77.91.250.134	A	aqua.guardian.co.uk
77.91.250.142	A	snow.guardian.co.uk
77.91.250.143	A	toscana.guardian.co.uk
77.91.250.149	A	adfs.theguardian.com
77.91.250.150	A	adfsdev.theguardian.com
77.91.250.151	A+PTR	dc1.jabberguest.theguardian.com
77.91.250.155	A	expressway.theguardian.com
77.91.251.7	PTR	dns01.guardian.co.uk
77.91.251.8	PTR	dns02.guardian.co.uk
77.91.251.9	A+PTR	purple01.guardian.co.uk
77.91.251.10	PTR	www-origin.guardian.co.uk
77.91.251.10	A	www.guardiansoulmates.com
77.91.251.10	A	redirect.guardian.co.uk
77.91.251.11	PTR	image.guardian.co.uk
77.91.251.36	A	id.guardian.co.uk
77.91.251.39	A	id.theguardian.com
77.91.251.133	A	www.gucode.com
77.91.251.133	A	www.gucode.co.uk
77.91.251.134	A+PTR	id.gucode.co.uk
77.91.251.154	A	id.gurelease.com
77.91.252.7	PTR	dns03.guardian.co.uk
77.91.252.8	PTR	dns04.guardian.co.uk
77.91.252.10	PTR	www-origin.guardian.co.uk
77.91.252.10	A	www.guardiansoulmates.com
77.91.252.10	A	redirect.guardian.co.uk
77.91.252.11	PTR	image.guardian.co.uk
77.91.252.36	A	id.guardian.co.uk
77.91.252.39	A+PTR	id.theguardian.com
77.91.253.134	A	marina.guardian.co.uk
77.91.253.170	A	vendors.theguardian.com
77.91.253.170	A	dc2.vendors.theguardian.com
77.91.253.170	A	dc2.vpn.theguardian.com
77.91.254.33	PTR	gnmrem1.guardian.co.uk
77.91.254.49	A+PTR	gnmrem2.guardian.co.uk
77.91.254.49	A	gnmrem1.guardian.co.uk