Robtex

Up: 208.252.176.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 208.252.176.0/22
Down right: 208.252.180.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.252.176.2	A	mail.familyfiltered.com
208.252.176.2	A	mail.usonline.com
208.252.176.25	PTR	mail.myvine.com
208.252.176.26	PTR	mail.fwi.com
208.252.176.53	A	mail.sterlingks.com
208.252.176.53	A	mail.sterlingks.net
208.252.176.65	PTR	mail.mainester.net
208.252.176.67	A	mail.icdus.net
208.252.176.75	PTR	isp.bigplanet.com
208.252.177.2	PTR	cisp00.worlds.net
208.252.177.50	PTR	stthomas-elca.org
208.252.177.50	A+PTR	therock.nmo.net
208.252.177.50	PTR	www.stthomas-elca.org
208.252.177.51	A+PTR	ns.nmo.net
208.252.177.51	A+PTR	ns2.nmo.net
208.252.177.52	A	colo1.nmo.net
208.252.177.100	PTR	dns1.experiencethread.com
208.252.177.139	PTR	mail.worldteq.com
208.252.177.140	PTR	mail.worldteq.com
208.252.177.140	A	papewelt.com
208.252.177.190	PTR	mail.provsol.com
208.252.178.23	A	dialupgrade.com
208.252.179.40	A	filter.cisp.com
208.252.179.200	PTR	relay.bigplanet.com
208.252.179.200	PTR	mail.cleanguru.net
208.252.179.230	PTR	mailsvc211.cisp.com
208.252.179.230	A	mail.yocolomail.com
208.252.179.232	A+PTR	host230.allthesites.com
208.252.182.134	A	mail.military-advertising.us
208.252.182.134	A	mail.4-ever-mine.com
208.252.182.134	A	mail.search4canadianschools.com
208.252.182.139	A	www.hagerstownbusinesscol.org