Robtex

Up: 64.25.128.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 64.25.144.0/21
Down right: 64.25.152.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.25.145.10	PTR	ns1.ftxnetworks.com
64.25.145.10	A	ns1.viser.com
64.25.145.10	A	ns1.meritel.net
64.25.145.11	PTR	ns2.ftxnetworks.com
64.25.145.24	PTR	mail.viser.com
64.25.145.24	A	mail.meritel.com
64.25.145.24	A	mail.meritel.net
64.25.145.32	PTR	mail.meritel.net
64.25.145.32	A	smtp.meritel.net
64.25.145.32	A	mail.ftxnetworks.com
64.25.145.56	A	ftxnetworks.com
64.25.145.121	A	ns1.talmageconstruction.com
64.25.145.121	A	hst121.meritel.net
64.25.145.122	PTR	hst122.ftxnetworks.com
64.25.145.122	A	www.sugg.net
64.25.145.122	A	www.meritel.net
64.25.145.210	A	ftxnetworks.com
64.25.145.220	A+PTR	speedtest.viser.com
64.25.145.221	A+PTR	mailgw.ftxnetworks.com
64.25.145.221	A	mailgw.meritel.net
64.25.147.28	A	cascade.k12.or.us
64.25.147.28	A	dns1.cascade.k12.or.us
64.25.147.33	PTR	64-25-147-33.ftxnetworks.com
64.25.147.48	PTR	64-25-147-48.ftxnetworks.com
64.25.147.144	PTR	64-25-147-144.ftxnetworks.com
64.25.151.57	PTR	64-25-151-57.ftxnetworks.com
64.25.151.58	PTR	64-25-151-58.ftxnetworks.com
64.25.153.23	PTR	64-25-153-23.ftxnetworks.com
64.25.153.115	PTR	64-25-153-115.ftxnetworks.com
64.25.153.145	PTR	64-25-153-145.ftxnetworks.com
64.25.153.147	PTR	64-25-153-147.ftxnetworks.com
64.25.153.160	PTR	64-25-153-160.ftxnetworks.com
64.25.153.211	PTR	64-25-153-211.ftxnetworks.com
64.25.154.177	PTR	64-25-154-177.ftxnetworks.com
64.25.155.51	PTR	64-25-155-51.ftxnetworks.com
64.25.155.114	PTR	64-25-155-114.ftxnetworks.com
64.25.157.243	PTR	64-25-157-243.ftxnetworks.com