Robtex

Up: 164.158.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 164.159.0.0/17
Down right: 164.159.128.0/17
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
164.159.59.2	A+PTR	aa.fws.gov
164.159.60.2	A+PTR	dd.fws.gov
164.159.152.2	A	ak.fws.gov
164.159.171.2	A+PTR	ifw9bct-relay.fws.gov
164.159.171.2	A	smtp2.fws.gov
164.159.171.2	A	smtp1.fws.gov
164.159.171.5	PTR	dns1.fws.gov
164.159.171.12	PTR	inside.fws.gov
164.159.171.34	A	oxbow.fws.gov
164.159.171.34	A	alligatorriver.fws.gov
164.159.171.34	A	grandbay.fws.gov
164.159.173.129	A+PTR	webvpn.fws.gov
164.159.173.134	A	r9bctborder.fws.gov
164.159.173.139	A	termserver.fws.gov
164.159.173.245	A	r9bctdistribution.fws.gov
164.159.185.36	A	fire.blm.gov
164.159.195.221	A	fw9af.irm.r9.fws.gov
164.159.202.1	A+PTR	dns2.fws.gov
164.159.202.9	PTR	ifw9arl-redirect.fws.gov
164.159.202.9	PTR	redirect.fws.gov
164.159.202.9	A	oxbow.fws.gov
164.159.202.10	PTR	ifw9arl-relay.fws.gov
164.159.202.10	A	smtp2.fws.gov
164.159.202.10	A	smtp1.fws.gov