Robtex

Up: 81.200.64.0/25
Can't show all results, try to descend to a more specific CIDR
Down left: 81.200.64.0/27
Down right: 81.200.64.32/27
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
81.200.64.50	PTR	advancedsearch.virginmedia.com
81.200.64.50	A	mx.wgtsport.com
81.200.64.50	A	paradislondon.co.uk
81.200.64.51	PTR	advancedsearch2.virginmedia.com
81.200.64.52	PTR	zoeken.upc.nl
81.200.64.52	A	freddegroot.nl
81.200.64.53	A+PTR	search-upc-irl.skyebynominum.com
81.200.64.53	A	searching.upc.ie
81.200.64.55	A+PTR	search-eu.skyebynominum.com
81.200.64.56	A+PTR	telefonica-d-demo.skyebynominum.com