Robtex

Up: 72.42.240.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 72.42.240.0/22
Down right: 72.42.244.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
72.42.240.40	PTR	72.42.240.40.bigleaf.net
72.42.240.99	A+PTR	inboundmail.bullardlaw.com
72.42.240.122	PTR	72.42.240.122.bigleaf.net
72.42.240.122	A	unifi.nwtechs.com
72.42.240.122	A	remote.nwtechs.com
72.42.240.124	PTR	72.42.240.124.bigleaf.net
72.42.240.124	A	gandalf.mjbest.com
72.42.240.124	A	ncentral.nwtechs.com
72.42.240.125	PTR	72.42.240.125.bigleaf.net
72.42.241.8	PTR	72.42.241.8.bigleaf.net
72.42.241.8	A	thehatshop.com
72.42.241.21	PTR	72.42.241.21.bigleaf.net
72.42.241.21	A	dorfmanpacific.com
72.42.241.21	A	milanohats.com
72.42.241.92	PTR	72.42.241.92.bigleaf.net
72.42.241.92	A	www.allenlund.com
72.42.241.123	PTR	72.42.241.123.bigleaf.net
72.42.241.123	A	alcwebservices-prod.com
72.42.241.124	PTR	smtp3-la.allenlund.com
72.42.241.125	PTR	72.42.241.125.bigleaf.net
72.42.241.125	A	lpptms.com
72.42.241.125	A	alctms-t1.com
72.42.242.98	PTR	72.42.242.98.bigleaf.net
72.42.242.251	PTR	72.42.242.251.bigleaf.net
72.42.242.251	A	mail.lundstrominsurance.com
72.42.243.5	PTR	72.42.243.5.bigleaf.net
72.42.243.5	A	secure.navinhaffty.com
72.42.243.58	PTR	linbox.frigodesign.com
72.42.243.58	A	mail.frigodesign.com
72.42.243.167	PTR	72.42.243.167.bigleaf.net
72.42.243.167	A	xsaccessories.com
72.42.243.168	PTR	72.42.243.168.bigleaf.net
72.42.243.168	A	scorpioaccessories.com
72.42.243.168	A	www.robertrose.com
72.42.243.212	PTR	72.42.243.212.bigleaf.net
72.42.244.88	PTR	72.42.244.88.bigleaf.net
72.42.244.162	A	bdc-llc.com
72.42.244.163	PTR	mail.busydogs.com
72.42.244.163	A	mail.bdc-llc.com
72.42.244.205	PTR	72.42.244.205.bigleaf.net
72.42.245.220	PTR	72.42.245.220.bigleaf.net
72.42.245.220	A	buysomesod.myfirewall.co
72.42.246.4	PTR	72.42.246.4.bigleaf.net
72.42.246.44	PTR	72.42.246.44.bigleaf.net
72.42.246.44	A	wglendersdirect.com
72.42.246.46	PTR	72.42.246.46.bigleaf.net
72.42.246.46	A	wgiconline.com
72.42.246.52	A+PTR	gapdirect.com
72.42.246.206	PTR	72.42.246.206.bigleaf.net
72.42.246.206	A	support3.glovia.com
72.42.246.213	PTR	72.42.246.213.bigleaf.net