Robtex

Up: 66.128.12.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 66.128.14.0/24
Down right: 66.128.15.0/24
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.128.14.0	PTR	66.128.14.0.xchangetele.com
66.128.14.6	PTR	66.128.14.6.xchangetele.com
66.128.14.63	PTR	66.128.14.63.xchangetele.com
66.128.14.67	A+PTR	mail.xyzcar.com
66.128.14.67	A	imap.xyzcar.com
66.128.14.67	A	mx2.xyzcar.com
66.128.14.72	PTR	66.128.14.72.xchangetele.com
66.128.14.72	A	*.xyzcar.com
66.128.14.72	A	mailserver1.xyzcar.com
66.128.14.92	PTR	66.128.14.92.xchangetele.com
66.128.14.129	PTR	66.128.14.129.xchangetele.com
66.128.14.130	PTR	66.128.14.130.xchangetele.com
66.128.14.130	A	2757thvisitor.com
66.128.14.144	PTR	66.128.14.144.xchangetele.com
66.128.14.150	PTR	66.128.14.150.xchangetele.com
66.128.14.150	A	popserver.nycva.net
66.128.14.179	PTR	66.128.14.179.xchangetele.com
66.128.14.179	A	mail.attitudepost.com
66.128.14.179	A	mail.attitudeinc.tv
66.128.14.180	PTR	66.128.14.180.xchangetele.com
66.128.14.180	A	insomnia-nation.tv
66.128.14.180	A	insomnianation.tv
66.128.15.17	PTR	66.128.15.17.xchangetele.com
66.128.15.17	A	www.telerific.com
66.128.15.17	A	telerific.com
66.128.15.34	PTR	66.128.15.34.xchangetele.com
66.128.15.34	A	speedtest.xchangetele.com
66.128.15.255	PTR	66.128.15.255.xchangetele.com