Robtex

Up: 78.158.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 78.158.64.0/22
Down right: 78.158.68.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
78.158.64.2	A+PTR	os3.sargasso.net
78.158.64.13	A+PTR	sec2.mail.sargasso.net
78.158.64.14	A+PTR	auth3.ns.sargasso.net
78.158.64.54	A+PTR	host02-sni.as42579.net
78.158.64.54	A	playwellforlife.com
78.158.65.72	PTR	raspbian.mirror.uk.sargasso.net
78.158.65.73	A	clamav.mirror.uk.sargasso.net
78.158.65.100	A+PTR	lorentz.emfcamp.org
78.158.65.100	A	emfcamp-test.org
78.158.65.100	A	ns1.emfcamp-test.org
78.158.65.110	PTR	dev.emfcamp.org
78.158.65.110	A	emfcamp-test.org
78.158.65.149	PTR	www.comteconline.co.uk
78.158.65.149	A	comteconline.co.uk
78.158.66.3	A	remote.dpdirect.net
78.158.66.21	A	memhq.com
78.158.66.21	A	oneminuteupdate.co.uk
78.158.66.83	PTR	mail.latymer-upper.org
78.158.66.147	PTR	mail.interiorsgroup.co.uk
78.158.67.12	A	mail2.ladderloans.co.uk
78.158.67.12	A	mail.memcftest.com
78.158.67.148	A	connevans-bh.co.uk
78.158.68.1	A	mail.kingston-consulting.com
78.158.68.54	A+PTR	host-78-158-68-54.dsl.uk.sargasso.net
78.158.69.14	A	host-78-158-69-14.dsl.uk.sargasso.net
78.158.69.18	A+PTR	host-78-158-69-18.dsl.uk.sargasso.net
78.158.69.36	A	host-78-158-69-36.dsl.uk.sargasso.net
78.158.69.77	A	host-78-158-69-77.dsl.uk.sargasso.net
78.158.69.86	A	host-78-158-69-86.dsl.uk.sargasso.net
78.158.69.115	A+PTR	host-78-158-69-115.dsl.uk.sargasso.net
78.158.69.142	A	host-78-158-69-142.dsl.uk.sargasso.net
78.158.69.145	A+PTR	host-78-158-69-145.dsl.uk.sargasso.net
78.158.69.151	A	host-78-158-69-151.dsl.uk.sargasso.net
78.158.69.153	A+PTR	host-78-158-69-153.dsl.uk.sargasso.net
78.158.69.154	A+PTR	host-78-158-69-154.dsl.uk.sargasso.net
78.158.69.174	A	host-78-158-69-174.dsl.uk.sargasso.net
78.158.69.176	A+PTR	host-78-158-69-176.dsl.uk.sargasso.net
78.158.69.190	A	host-78-158-69-190.dsl.uk.sargasso.net
78.158.69.194	A+PTR	host-78-158-69-194.dsl.uk.sargasso.net
78.158.69.198	A	host-78-158-69-198.dsl.uk.sargasso.net
78.158.69.220	A	host-78-158-69-220.dsl.uk.sargasso.net
78.158.69.225	A+PTR	host-78-158-69-225.dsl.uk.sargasso.net
78.158.69.253	A	host-78-158-69-253.dsl.uk.sargasso.net
78.158.71.3	PTR	vl39.dist02.lsrei01.uk.sargasso.net
78.158.71.40	A+PTR	mail.hcml.co.uk
78.158.71.40	A	mail.hcml.ie
78.158.71.40	A	mail2.hcml.co.uk
78.158.71.47	A+PTR	mail.hcml.co.uk