Robtex

Up: 206.123.48.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 206.123.56.0/22
Down right: 206.123.60.0/22

IP	Type	Hostname
206.123.56.0	PTR	madelia-ocm-56-0.cccinternet.net
206.123.56.3	A	madelia-ocm-56-3.cccinternet.net
206.123.56.9	PTR	madelia-ocm-56-9.cccinternet.net
206.123.56.11	A+PTR	madelia-ocm-56-11.cccinternet.net
206.123.56.32	A+PTR	madelia-ocm-56-32.cccinternet.net
206.123.56.33	PTR	madelia-ocm-56-33.cccinternet.net
206.123.56.122	A	madelia-ocm-56-122.cccinternet.net
206.123.56.214	A	madelia-ocm-56-214.cccinternet.net
206.123.56.251	A+PTR	madelia-ocm-56-251.cccinternet.net
206.123.57.62	A+PTR	madelia-ocm-57-62.cccinternet.net
206.123.57.62	A	robertsfarmsinc.com
206.123.57.72	A+PTR	madelia-ocm-57-72.cccinternet.net
206.123.57.120	A+PTR	madelia-ocm-57-120.cccinternet.net
206.123.57.152	A	madelia-ocm-57-152.cccinternet.net
206.123.57.181	A	madelia-ocm-57-181.cccinternet.net
206.123.57.209	A+PTR	madelia-ocm-57-209.cccinternet.net
206.123.58.42	A+PTR	madelia-open-58-42.cccinternet.net
206.123.58.70	A	madelia-open-58-70.cccinternet.net
206.123.58.76	A+PTR	madelia-open-58-76.cccinternet.net
206.123.58.91	A+PTR	madelia-open-58-91.cccinternet.net
206.123.58.132	A	madelia-open-58-132.cccinternet.net
206.123.60.3	A	mail.wilcon-construction.com
206.123.60.9	A	stjames-cal-60-9.cccinternet.net
206.123.60.10	A+PTR	stjames-cal-60-10.cccinternet.net
206.123.60.10	A	icsmn.com
206.123.60.10	A	mail.icsmn.com
206.123.60.12	PTR	stjames-cal-60-12.cccinternet.net
206.123.60.14	PTR	stjames-cal-60-14.cccinternet.net
206.123.60.43	A	stjames-cal-60-43.cccinternet.net
206.123.60.93	A+PTR	stjames-cal-60-93.cccinternet.net
206.123.63.61	A+PTR	madelia-zho-63-61.cccinternet.net
206.123.63.85	A	madelia-zho-63-85.cccinternet.net
206.123.63.88	A+PTR	madelia-zho-63-88.cccinternet.net