Robtex

Up: 68.16.160.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 68.16.168.0/22
Down right: 68.16.172.0/22

IP	Type	Hostname
68.16.168.9	A+PTR	adsl-068-016-168-009.sip.mco.bellsouth.net
68.16.168.9	A	clem1.clem-digital.net
68.16.168.10	A+PTR	clem.clem-digital.net
68.16.168.11	A	clem2.clem-digital.net
68.16.168.42	A	mail.jcbcon.net
68.16.168.145	A+PTR	adsl-068-016-168-145.sip.mco.bellsouth.net
68.16.168.165	A+PTR	adsl-068-016-168-165.sip.mco.bellsouth.net
68.16.168.188	PTR	adsl-068-016-168-188.sip.mco.bellsouth.net
68.16.168.209	A+PTR	adsl-068-016-168-209.sip.mco.bellsouth.net
68.16.169.35	A+PTR	adsl-068-016-169-035.sip.mco.bellsouth.net
68.16.169.81	A+PTR	adsl-068-016-169-081.sip.mco.bellsouth.net
68.16.169.201	A+PTR	adsl-068-016-169-201.sip.mco.bellsouth.net
68.16.169.205	A+PTR	adsl-068-016-169-205.sip.mco.bellsouth.net
68.16.169.252	A+PTR	adsl-068-016-169-252.sip.mco.bellsouth.net
68.16.170.242	PTR	adsl-068-016-170-242.sip.mco.bellsouth.net
68.16.171.7	A+PTR	adsl-068-016-171-007.sip.mco.bellsouth.net
68.16.171.10	A+PTR	adsl-068-016-171-010.sip.mco.bellsouth.net
68.16.171.106	A+PTR	adsl-068-016-171-106.sip.mco.bellsouth.net
68.16.171.139	A	donmoes.com
68.16.172.33	A+PTR	adsl-068-016-172-033.sip.mco.bellsouth.net
68.16.172.149	A	adsl-068-016-172-149.sip.mco.bellsouth.net
68.16.173.60	A+PTR	adsl-068-016-173-060.sip.mco.bellsouth.net
68.16.173.101	A	home.theageless.com
68.16.173.135	A+PTR	adsl-068-016-173-135.sip.mco.bellsouth.net
68.16.173.138	A	mail.fun-spotusa.com
68.16.174.97	A+PTR	adsl-068-016-174-097.sip.mco.bellsouth.net
68.16.174.158	A	mail.tditest.com
68.16.174.158	A	tditest.com
68.16.175.98	A+PTR	adsl-068-016-175-098.sip.mco.bellsouth.net
68.16.175.162	A+PTR	adsl-068-016-175-162.sip.mco.bellsouth.net
68.16.175.177	A+PTR	adsl-068-016-175-177.sip.mco.bellsouth.net
68.16.175.241	A+PTR	adsl-068-016-175-241.sip.mco.bellsouth.net