Robtex

Up: 198.251.56.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 198.251.60.0/23
Down right: 198.251.62.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
198.251.60.0	PTR	0.60.251.198.dynamic.vianetdsl.com
198.251.60.100	PTR	100.60.251.198.dynamic.vianetdsl.com
198.251.61.103	PTR	103.61.251.198.dynamic.vianetdsl.com
198.251.61.191	PTR	191.61.251.198.dynamic.vianetdsl.com
198.251.61.191	A	mail.mattp.ca
198.251.61.250	A	teampunch.net
198.251.61.250	A	eklipto.com
198.251.62.5	PTR	5.62.251.198.static.vianetdsl.com
198.251.62.5	A	gateway.tinynet.ca
198.251.62.12	PTR	12.62.251.198.static.vianetdsl.com
198.251.62.24	PTR	24.62.251.198.static.vianetdsl.com
198.251.62.24	A	ezshell.com
198.251.62.24	A	ns1.ezshell.com
198.251.62.25	PTR	25.62.251.198.static.vianetdsl.com
198.251.62.26	PTR	26.62.251.198.static.vianetdsl.com
198.251.62.33	PTR	33.62.251.198.static.vianetdsl.com
198.251.62.33	A	remote.tang.ca
198.251.62.33	A	mx.tang.ca
198.251.62.39	PTR	39.62.251.198.static.vianetdsl.com
198.251.62.39	A	softforte.com
198.251.62.39	A	neganov.com
198.251.62.66	PTR	66.62.251.198.static.vianetdsl.com
198.251.62.66	A	yafun.dyndns.org
198.251.62.66	A	woyo.ca
198.251.62.82	PTR	82.62.251.198.static.vianetdsl.com
198.251.62.82	A	mail.seiner.com
198.251.62.82	A	*.seiner.com
198.251.62.86	PTR	86.62.251.198.static.vianetdsl.com
198.251.62.86	A	d-bug.org
198.251.62.86	A	www.d-bug.org
198.251.62.93	A	mail.alarmcast.ca
198.251.62.94	A	mail.bullivant.ca
198.251.62.98	PTR	98.62.251.198.static.vianetdsl.com
198.251.62.98	A	ciolution.com
198.251.62.99	PTR	99.62.251.198.static.vianetdsl.com
198.251.62.99	A	castingoffthecold.ca
198.251.62.99	A	webintensity.ca
198.251.62.138	A	waterloohomestay.com
198.251.62.138	A	kwmatrix.com
198.251.62.138	A	wikipedit.com
198.251.62.187	PTR	187.62.251.198.static.vianetdsl.com
198.251.62.187	A	dc-7dff4b41c48d.canada-iptv.ca
198.251.62.187	A	www.zedden.ca
198.251.62.199	PTR	199.62.251.198.static.vianetdsl.com
198.251.62.199	A	airportruns.ca
198.251.62.200	PTR	200.62.251.198.static.vianetdsl.com
198.251.62.200	A	zorenyi.com
198.251.62.200	A	esxi.ca
198.251.63.84	A	crdsmartcity.com
198.251.63.240	PTR	pctek.ca
198.251.63.241	PTR	pctek.ca
198.251.63.242	PTR	pctek.ca
198.251.63.243	PTR	pctek.ca
198.251.63.244	PTR	pctek.ca
198.251.63.245	PTR	pctek.ca
198.251.63.246	PTR	pctek.ca
198.251.63.247	PTR	pctek.ca
198.251.63.255	PTR	255.63.251.198.subnet.vianetdsl.com