Robtex

Up: 64.68.208.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 64.68.208.0/22
Down right: 64.68.212.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
64.68.208.0	PTR	64-68-208-0.transtelco.net
64.68.209.2	A+PTR	dns1.bordercomm.com
64.68.209.3	A+PTR	dns2.bordercomm.com
64.68.209.66	A+PTR	dns3.bordercomm.com
64.68.209.67	A+PTR	dns4.bordercomm.com
64.68.209.70	A	websrv02.bordercomm.com
64.68.209.72	A+PTR	mail.xcnetworks.com
64.68.209.72	A	www.xcnetworks.com
64.68.209.72	A	xcnetworks.com
64.68.210.58	A+PTR	mail.gfenix.com
64.68.210.58	A	www.gfenix.com
64.68.210.58	A	gfenix.com
64.68.211.0	PTR	64.68.211-0.transtelco.net
64.68.211.9	PTR	64.68.211-9.transtelco.net
64.68.211.27	PTR	64.68.211-27.transtelco.net
64.68.211.35	PTR	64.68.211-35.transtelco.net
64.68.211.50	PTR	64.68.211-50.transtelco.net
64.68.211.59	PTR	64.68.211-59.transtelco.net
64.68.211.64	PTR	64.68.211-64.transtelco.net
64.68.211.75	PTR	64.68.211-75.transtelco.net
64.68.211.90	PTR	64.68.211-90.transtelco.net
64.68.211.96	PTR	64.68.211-96.transtelco.net
64.68.211.97	PTR	64.68.211-97.transtelco.net
64.68.211.107	PTR	64.68.211-107.transtelco.net
64.68.211.112	PTR	64.68.211-112.transtelco.net
64.68.211.120	PTR	64.68.211-120.transtelco.net
64.68.211.122	PTR	bcp-122-211-68-64.bordercomm.com
64.68.211.129	PTR	64.68.211-129.transtelco.net
64.68.211.130	PTR	64.68.211-130.transtelco.net
64.68.211.136	PTR	64.68.211-136.transtelco.net
64.68.211.139	PTR	64.68.211-139.transtelco.net
64.68.211.146	PTR	64.68.211-146.transtelco.net
64.68.211.154	PTR	64.68.211-154.transtelco.net
64.68.211.169	PTR	64.68.211-169.transtelco.net
64.68.211.179	PTR	64.68.211-179.transtelco.net
64.68.211.184	PTR	64.68.211-184.transtelco.net
64.68.211.186	PTR	64.68.211-186.transtelco.net
64.68.211.192	PTR	64.68.211-192.transtelco.net
64.68.211.193	PTR	64.68.211-193.transtelco.net
64.68.211.195	PTR	64.68.211-195.transtelco.net
64.68.211.203	PTR	64.68.211-203.transtelco.net
64.68.211.222	A	mail.v-sp.com
64.68.211.226	PTR	64.68.211-226.transtelco.net
64.68.211.227	PTR	64.68.211-227.transtelco.net
64.68.211.248	PTR	64.68.211-248.transtelco.net
64.68.211.250	PTR	64.68.211-250.transtelco.net
64.68.211.251	PTR	64.68.211-251.transtelco.net
64.68.212.3	A+PTR	mail.likommexico.com
64.68.212.4	A	likommexico.com
64.68.212.4	A	www.likommexico.com
64.68.212.138	PTR	cdj.bryanlex.com
64.68.212.213	A	crossborderops.com
64.68.212.213	A	rydercoas.com
64.68.213.66	PTR	64-68-213-66.transtelco.net
64.68.213.67	PTR	64-68-213-67.transtelco.net
64.68.213.102	PTR	64-68-213-102.transtelco.net
64.68.213.105	PTR	mail.canal44.com
64.68.213.182	PTR	64-68-213-182.transtelco.net
64.68.213.194	PTR	64-68-213-194.transtelco.net
64.68.213.234	PTR	yzk.com.mx
64.68.214.7	PTR	64.68.214-7.transtelco.net
64.68.214.126	PTR	64.68.214-126.transtelco.net
64.68.215.98	PTR	64.68.215-98.transtelco.net