Robtex

Up: 83.98.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 83.98.96.0/20
Down right: 83.98.112.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
83.98.99.38	PTR	e1-3-tfm20-edge-rtr-b.as30914.net
83.98.99.66	PTR	ixe-dist-3750e-b.ioko.net
83.98.99.70	PTR	ixe-dist-3750e-a.ioko.net
83.98.99.133	PTR	tfm20-edge-asr-a.ioko.net
83.98.99.237	PTR	tfm20-dist-3750e-a.ioko.net
83.98.99.238	PTR	tfm20-dist-ces-b.ioko.net
83.98.100.106	PTR	tfm20-dist-3750-b.ioko.net
83.98.100.212	A+PTR	tfm40-edge-xmr-b.ioko.net
83.98.100.215	A	tfm40-dist-3750-a.ioko.net
83.98.100.216	A+PTR	tfm40-dist-3750-b.ioko.net
83.98.100.221	A+PTR	ixe-edge-asr-a.ioko.net
83.98.100.225	A	ixe-dist-3750-a.ioko.net
83.98.100.226	A	ixe-dist-3750-b.ioko.net
83.98.100.227	PTR	ixe-dist-3750e-a.ioko.net
83.98.100.241	A	tfm20-edge-asr-a.ioko.net
83.98.100.242	A	tfm20-edge-xmr-b.ioko.net
83.98.101.4	A	heathrowcommunityfund.com
83.98.101.4	A	heathrow.com
83.98.101.4	A	baa.com
83.98.102.11	PTR	baapztm12.prod.baa.thuk.ioko.com
83.98.102.13	PTR	baapztm-ftp.prod.baa.thuk.ioko.com
83.98.102.16	PTR	baapztm-delivery.prod.baa.thuk.ioko.com
83.98.102.16	A	www.heathrow.com
83.98.102.16	A	abz.wip.baa.com
83.98.102.65	PTR	int-vcm.wip.baa.com
83.98.102.138	PTR	baapztm01.prod.baa.ix.ioko.com
83.98.102.141	PTR	baapztm-ftp.prod.baa.ix.ioko.com
83.98.102.144	A	lhr.wip.baa.com
83.98.102.144	A	stn.wip.baa.com
83.98.103.14	A	web.wip.heathrow.com
83.98.103.14	A	www.baa.com
83.98.103.22	A	blog.wip.heathrow.com
83.98.103.129	A	www.heathrow.com
83.98.103.129	A	www.baa.com
83.98.103.129	A	www.heathrowairport.com
83.98.105.21	A	www.redalert.net
83.98.105.21	A	www.tiberiansun.com
83.98.105.21	A	redalertii.net