Robtex

Up: 166.0.96.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 166.0.96.0/22
Down right: 166.0.100.0/22

IP	Type	Hostname
166.0.96.19	A+PTR	166-0-96-19.acedatacenter.com
166.0.96.22	A	166-0-96-22.acedatacenter.com
166.0.96.46	A	166-0-96-46.acedatacenter.com
166.0.96.84	A	166-0-96-84.acedatacenter.com
166.0.96.128	A+PTR	166-0-96-128.acedatacenter.com
166.0.96.150	A	166-0-96-150.acedatacenter.com
166.0.96.215	A	166-0-96-215.acedatacenter.com
166.0.96.218	A+PTR	166-0-96-218.acedatacenter.com
166.0.97.187	A+PTR	166-0-97-187.acedatacenter.com
166.0.99.14	A	166-0-99-14.acedatacenter.com
166.0.99.18	A+PTR	166-0-99-18.acedatacenter.com
166.0.99.33	A+PTR	166-0-99-33.acedatacenter.com
166.0.99.55	A	166-0-99-55.acedatacenter.com
166.0.99.63	A	166-0-99-63.acedatacenter.com
166.0.99.79	A	166-0-99-79.acedatacenter.com
166.0.99.80	A+PTR	166-0-99-80.acedatacenter.com
166.0.99.92	A	166-0-99-92.acedatacenter.com
166.0.99.126	A	166-0-99-126.acedatacenter.com
166.0.99.206	A	166-0-99-206.acedatacenter.com
166.0.99.216	A+PTR	166-0-99-216.acedatacenter.com
166.0.99.242	A+PTR	166-0-99-242.acedatacenter.com
166.0.100.2	PTR	166-0-100-2.acedatacenter.com
166.0.100.15	A	166-0-100-15.acedatacenter.com
166.0.100.29	A	166-0-100-29.acedatacenter.com
166.0.100.58	A+PTR	166-0-100-58.acedatacenter.com
166.0.100.60	A	166-0-100-60.acedatacenter.com
166.0.100.181	A	166-0-100-181.acedatacenter.com
166.0.100.229	A	166-0-100-229.acedatacenter.com
166.0.103.9	A+PTR	166-0-103-9.acedatacenter.com
166.0.103.20	A	166-0-103-20.acedatacenter.com
166.0.103.80	A+PTR	166-0-103-80.acedatacenter.com
166.0.103.127	A	166-0-103-127.acedatacenter.com
166.0.103.188	A	166-0-103-188.acedatacenter.com