Robtex

Up: 66.128.2.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 66.128.2.0/25
Down right: 66.128.2.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.128.2.18	PTR	66.128.2.18.xchangetele.com
66.128.2.18	A	centraloffice.net
66.128.2.18	A	www.bigtalkny.com
66.128.2.19	PTR	66.128.2.19.xchangetele.com
66.128.2.19	A	mycommportal.com
66.128.2.19	A	centraloffice.xchangetele.com
66.128.2.23	PTR	66.128.2.23.xchangetele.com
66.128.2.23	A	www.zoneview.com
66.128.2.23	A	zoneview.com
66.128.2.25	A	cfgs.xchangetele.com
66.128.2.36	A+PTR	mx5.xchangetele.com
66.128.2.36	A	mail5.xchangetele.com
66.128.2.38	A	cfg.xchangetele.com
66.128.2.42	PTR	66.128.2.42.xchangetele.com
66.128.2.66	A+PTR	pbx2.xchangetele.com
66.128.2.70	PTR	66.128.2.70.xchangetele.com
66.128.2.139	PTR	66.128.2.139.xchangetele.com
66.128.2.139	A	mail4.xchangetele.com
66.128.2.139	A	mx.justemailing.com
66.128.2.140	A	x3.xchangetele.com
66.128.2.152	A+PTR	ns6.xchangetele.com
66.128.2.152	A	ns3.xchangetele.com
66.128.2.152	A	ns4.xchangetele.com
66.128.2.154	PTR	66.128.2.154.xchangetele.com
66.128.2.154	A	xcht.net