Robtex

Up: 209.16.64.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 209.16.64.0/21
Down right: 209.16.72.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
209.16.64.1	A+PTR	dnscache01.xfoneusa.net
209.16.64.1	A	dns.zzip.cc
209.16.64.1	A	ns1.xfoneusa.com
209.16.64.2	PTR	dnscache02.xfoneusa.net
209.16.64.20	PTR	mail2.datasync.com
209.16.64.195	PTR	www.hurricanehunters.com
209.16.65.128	A+PTR	www.globalsea.com
209.16.65.128	A	globalsea.com
209.16.66.133	A	dsl-209-16-66-133.datasync.com
209.16.66.185	A	dsl-209-16-66-185.datasync.com
209.16.66.191	A	dsl-209-16-66-191.datasync.com
209.16.66.206	A	dsl-209-16-66-206.datasync.com
209.16.66.236	A	dsl-209-16-66-236.datasync.com
209.16.67.23	A	dsl-209-16-67-23.datasync.com
209.16.67.41	A	dsl-209-16-67-41.datasync.com
209.16.67.68	A	dsl-209-16-67-68.datasync.com
209.16.68.8	A	dhvss.datasync.com
209.16.68.14	A	mail.tomsprinting.com
209.16.68.44	A	sanders-realty.datasync.com
209.16.68.46	A	fondrenlaw.org
209.16.68.46	A	smtp.fondrenlaw.org
209.16.68.46	A	mail.fondrenlaw.org
209.16.68.89	A	chatterj.datasync.com
209.16.68.96	A	openmri.datasync.com
209.16.68.99	A+PTR	gums.datasync.com
209.16.69.115	A	kyle-home.i-55.com
209.16.69.231	A	alchemist.datasync.com
209.16.70.51	A	mail.biloxiattorney.com
209.16.70.59	A+PTR	smtp3.medtronsoftware.com
209.16.70.59	A	mail.medtronsoftware.com
209.16.70.210	A	www.expresstimeonline.com
209.16.71.3	A+PTR	elguapo.c-gate.net
209.16.71.6	A	ns3.c-gate.net
209.16.71.6	A	ws2.c-gate.net
209.16.71.6	A	ns2.c-gate.net
209.16.71.197	A	*.lh-co.com
209.16.71.251	A	mail.riverlandfcu.org
209.16.72.129	PTR	gw-1.stirlingprop.com
209.16.72.130	PTR	gw-1.stirlingprop.com
209.16.72.156	PTR	mail.stirlingprop.com
209.16.72.163	A	zatzkis.i-55.com
209.16.72.170	A	ismtp.ringstreet.net
209.16.73.135	PTR	evilscholar.wivesofely.org
209.16.73.135	A	nolisp.org
209.16.73.135	A	ljsound.com
209.16.73.230	PTR	emailsecurity.phjlaw.com
209.16.76.193	A	wildcat.primocomputers.com
209.16.76.240	A	mail.shineyhiney.com
209.16.79.66	PTR	mail.medtronsoftware.com