Robtex

Up: 171.249.0.0/16
Can't show all results, try to descend to a more specific CIDR
Down left: 171.249.128.0/18
Down right: 171.249.192.0/18

IP	Type	Hostname
171.249.161.106	A	services.dyndns.org
171.249.194.102	A	digitalassetfans.com
171.249.213.143	A	mail.ns1.mail.ns1.ns2.mail.518c2506e57106779f0cf55fcfd14fb065d00efe1d5a5a2a9b2d684d.6.mjuyh.com
171.249.215.145	PTR	dynamic-adsl.viettel.vn
171.249.234.167	PTR	dynamic-ip-adsl.viettel.vn