Robtex

Up: 166.231.0.0/22
Can't show all results, try to descend to a more specific CIDR
Down left: 166.231.2.0/24
Down right: 166.231.3.0/24

IP	Type	Hostname
166.231.2.0	PTR	0-2-231-166.mobile.uscc.net
166.231.2.0	A	0.2.231.166.in-addr.arpa
166.231.3.0	A+PTR	0.3.231.166.in-addr.arpa
166.231.3.5	PTR	5-3-231-166.mobile.uscc.net
166.231.3.5	A	5.3.231.166.in-addr.arpa
166.231.3.12	A+PTR	12-3-231-166.mobile.uscc.net
166.231.3.12	A	12.3.231.166.in-addr.arpa
166.231.3.14	A+PTR	14.3.231.166.in-addr.arpa
166.231.3.15	A+PTR	15.3.231.166.in-addr.arpa
166.231.3.30	A+PTR	30.3.231.166.in-addr.arpa
166.231.3.41	A+PTR	41.3.231.166.in-addr.arpa
166.231.3.48	A+PTR	48.3.231.166.in-addr.arpa
166.231.3.51	A+PTR	51.3.231.166.in-addr.arpa
166.231.3.53	PTR	53-3-231-166.mobile.uscc.net
166.231.3.53	A	53.3.231.166.in-addr.arpa
166.231.3.76	A+PTR	76.3.231.166.in-addr.arpa
166.231.3.100	A+PTR	100.3.231.166.in-addr.arpa
166.231.3.101	PTR	101-3-231-166.mobile.uscc.net
166.231.3.101	A	101.3.231.166.in-addr.arpa
166.231.3.109	PTR	109-3-231-166.mobile.uscc.net
166.231.3.109	A	109.3.231.166.in-addr.arpa
166.231.3.112	A+PTR	112.3.231.166.in-addr.arpa
166.231.3.115	A+PTR	115.3.231.166.in-addr.arpa
166.231.3.126	A+PTR	126.3.231.166.in-addr.arpa
166.231.3.142	PTR	142-3-231-166.mobile.uscc.net
166.231.3.142	A	142.3.231.166.in-addr.arpa
166.231.3.163	A+PTR	163-3-231-166.mobile.uscc.net
166.231.3.163	A	163.3.231.166.in-addr.arpa
166.231.3.168	A+PTR	168.3.231.166.in-addr.arpa
166.231.3.189	A+PTR	189.3.231.166.in-addr.arpa
166.231.3.204	A+PTR	204.3.231.166.in-addr.arpa
166.231.3.205	PTR	205-3-231-166.mobile.uscc.net
166.231.3.205	A	205.3.231.166.in-addr.arpa
166.231.3.219	A+PTR	219.3.231.166.in-addr.arpa
166.231.3.240	A+PTR	240-3-231-166.mobile.uscc.net