Robtex

Up: 64.129.48.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 64.129.48.0/23
Down right: 64.129.50.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.129.48.19	A+PTR	gw2.oxfordnetworks.net
64.129.48.41	A	ip8.connectrealty.com
64.129.48.41	A	ip2.connectrealty.com
64.129.48.41	A	ip1.connectrealty.com
64.129.48.57	A	hostmaster.crgmedical.com
64.129.48.58	A	johnston-llc.com
64.129.48.60	PTR	houpop02.chrsolutions.com
64.129.48.60	A	chrsolutions.co
64.129.48.60	A	webmail.chrsolutions.com
64.129.48.61	PTR	houpopout.chrsolutions.com
64.129.48.61	PTR	gw1.oxfordnetworks.net
64.129.48.222	A	reconnecto.com
64.129.49.25	A+PTR	barracuda.chrsolutions.com
64.129.49.25	A	relay.trrcpa.com
64.129.49.25	A	relay.trocpa.com
64.129.49.26	A	relay.trrcpa.com
64.129.49.26	A	relay.trocpa.com
64.129.50.25	A	mail.prostarcomm.com
64.129.50.26	PTR	mail.prostarcomm.com
64.129.50.26	A	email.prostarcomm.com
64.129.50.26	A	mail.tcpedi.com
64.129.51.30	A	www.visaextras.com
64.129.51.31	A	uat.visaextras.com
64.129.51.36	PTR	spc.gc.epsilon.com
64.129.51.64	PTR	64-129-51-64.static.twtelecom.net
64.129.51.64	A	submitmymiles.com
64.129.51.73	PTR	nohasslerewards.capitalone.com
64.129.51.73	A	www.capitalonemilesrewards.com
64.129.51.73	A	www.capitalonepointsrewards.com
64.129.51.79	A	pncpoints.visaextras.com
64.129.51.105	PTR	64-129-51-105.static.twtelecom.net
64.129.51.105	A	tacobellappetitereward.com
64.129.51.118	PTR	64-129-51-118.static.twtelecom.net
64.129.51.118	A	getmymiles.com
64.129.51.175	PTR	64-129-51-175.static.twtelecom.net
64.129.51.180	A	gslbtxdns1.epsilon.com
64.129.51.180	A	gslbtxdns1.epsihost.com
64.129.51.200	A	www.liveitwithcharter.com
64.129.51.200	A	liveitwithcharter.com
64.129.51.201	PTR	64-129-51-201.static.twtelecom.net
64.129.51.201	A	rewardzone.net
64.129.51.201	A	www.rewardzone.net
64.129.51.202	PTR	64-129-51-202.static.twtelecom.net
64.129.51.204	PTR	64-129-51-204.static.twtelecom.net
64.129.51.204	A	eddiebauerfriends.com
64.129.51.205	A	amex-amr.epsilon.com
64.129.51.207	A	www.redicard.com
64.129.51.216	A	awlservice-amr.epsilon.com
64.129.51.221	A	veryimportantpumper.com
64.129.51.240	PTR	64-129-51-240.static.twtelecom.net
64.129.51.240	A	epsihost.com
64.129.51.240	A	onleps.com
64.129.51.241	PTR	64-129-51-241.static.twtelecom.net
64.129.51.241	A	thankyounetwork.com
64.129.51.242	PTR	www.thankyou.com