Robtex

Up: 159.253.64.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 159.253.64.0/22
Down right: 159.253.68.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
159.253.64.43	PTR	static-159-253-64-43.karoo.kcom.com
159.253.64.43	A	mail-bk.isg.kcom.com
159.253.64.57	A	mx1.tecknodev.com
159.253.64.57	A	mail.tecknodev.com
159.253.64.57	A	mx2.tecknodev.com
159.253.64.62	A	mx1.cloudmail.org.uk
159.253.64.64	PTR	static-159-253-64-64.karoo.kcom.com
159.253.64.80	A+PTR	159-253-64-80.static.kc.net.uk
159.253.64.91	PTR	static-159-253-64-91.karoo.kcom.com
159.253.64.91	A	mail.cjackson.co.uk
159.253.64.102	A	mail.smart-tm.com
159.253.64.102	A	mx1.smart-tm.com
159.253.64.105	A+PTR	159-253-64-105.static.kc.net.uk
159.253.64.121	A	mail.mimirmarineltd.com
159.253.64.121	A	server01.mimirmarineltd.com
159.253.64.156	A	159-253-64-156.static.kc.net.uk
159.253.64.185	PTR	static-159-253-64-185.karoo.kcom.com
159.253.64.185	A	chaucerfoods.com
159.253.64.185	A	mail.chaucerfoods.com
159.253.64.192	A+PTR	159-253-64-192.static.kc.net.uk
159.253.64.218	A+PTR	159-253-64-218.static.kc.net.uk
159.253.64.226	A+PTR	159-253-64-226.static.kc.net.uk
159.253.64.226	A	mail.realitysolutions.co.uk
159.253.65.67	A	remote.commscaf.co.uk
159.253.66.218	A+PTR	mail.sharp-iris.com
159.253.66.218	A	sharp-iris.org
159.253.66.218	A	mail.smartgda.com
159.253.67.19	A	customserve.net
159.253.67.19	A	customserve.com
159.253.67.21	A	acuig.com
159.253.67.21	A	certificates.acuigen.com
159.253.67.29	A	mail1.acuigen.com
159.253.67.36	A+PTR	mail1.optimisaresearch.com
159.253.67.36	A	mail1.optimisaplc.com
159.253.67.39	A	mail4.optimisaplc.com
159.253.67.39	A	mail2.optimisaresearch.com
159.253.67.133	A	ultipractice.com
159.253.67.225	A	novaaid.com
159.253.68.34	PTR	static-159-253-68-34.karoo.kcom.com
159.253.68.235	PTR	static-159-253-68-235.karoo.kcom.com
159.253.69.26	A+PTR	159-253-69-26.static.kc.net.uk
159.253.69.26	A	static-159-253-69-26.karoo.kcom.com
159.253.69.102	A	tdsstudios.co.uk
159.253.70.36	A	159-253-70-36.static.kc.net.uk
159.253.70.180	A	mail.evolutionarycode.com
159.253.70.218	PTR	159-253-70-218.static.kc.net.uk
159.253.70.218	A	static-159-253-70-218.karoo.kcom.com
159.253.70.218	A	pfsp.co.uk
159.253.70.237	A	159-253-70-237.static.kc.net.uk
159.253.71.73	A	tizwas.co.uk
159.253.71.107	A	remote.she-knows.com
159.253.71.192	PTR	static-159-253-71-192.karoo.kcom.com