Robtex

Up: 201.104.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 201.104.128.0/18
Down right: 201.104.192.0/18

IP	Type	Hostname
201.104.131.2	PTR	dup-201-104-131-2.prod-dial.com.mx
201.104.140.32	PTR	dup-201-104-140-32.prod-dial.com.mx
201.104.143.243	PTR	dup-201-104-143-243.prod-dial.com.mx
201.104.147.136	PTR	dup-201-104-147-136.prod-dial.com.mx
201.104.150.110	A	yiwentong.com
201.104.153.129	PTR	dup-201-104-153-129.prod-dial.com.mx
201.104.188.73	PTR	dup-201-104-188-73.prod-dial.com.mx
201.104.205.241	PTR	dup-201-104-205-241.prod-dial.com.mx
201.104.206.40	PTR	dup-201-104-206-40.prod-dial.com.mx
201.104.206.175	PTR	dup-201-104-206-175.prod-dial.com.mx
201.104.211.130	PTR	dup-201-104-211-130.prod-dial.com.mx