Robtex

Up: 206.22.0.0/15
Can't show all results, try to descend to a more specific CIDR
Down left: 206.23.0.0/17
Down right: 206.23.128.0/17

IP	Type	Hostname
206.23.6.3	A+PTR	dns1.dscc.edu
206.23.6.3	A	dns.dscc.edu
206.23.6.3	A	ntsrv6.dscc.edu
206.23.6.4	A+PTR	my2.dscc.edu
206.23.7.12	A	raidernet.roanestate.edu
206.23.7.90	A+PTR	mail.roanestate.edu
206.23.7.90	A	autodiscover.roanestate.edu
206.23.7.91	A+PTR	ex13-1.roanestate.edu
206.23.7.92	PTR	ex13-2.roanestate.edu
206.23.8.6	A	officeweb.roanestate.edu
206.23.8.9	A	souzapa.rscc.cc.tn.us
206.23.8.10	A	classes.roanestate.edu
206.23.8.11	A	tcs.roanestate.edu
206.23.23.100	A+PTR	rsccdns1.cc.tn.us
206.23.23.100	A+PTR	rsccdns1.rscc.cc.tn.us
206.23.23.100	A	rsccdns1.roanestate.edu
206.23.23.101	PTR	rsccdns2.cc.tn.us
206.23.23.101	PTR	rsccdns2.rscc.cc.tn.us
206.23.23.101	A	rsccdns2.roanestate.edu
206.23.59.11	PTR	mail.columbiastate.edu
206.23.59.11	A	exchange.coscc.cc.tn.us
206.23.59.13	A+PTR	spamfilter.columbiastate.edu
206.23.59.13	A	spamfilter.coscc.cc.tn.us
206.23.59.14	A+PTR	spamfilterb.columbiastate.edu
206.23.59.15	PTR	dns2.columbiastate.edu
206.23.78.0	A	lanecollege.edu
206.23.78.11	A	internetserver.lanecollege.edu
206.23.78.12	PTR
206.23.78.12	PTR	spam.lanecollege.edu
206.23.78.12	PTR	spam.domaindnszones.lanecollege.edu
206.23.78.50	A	research.lanecollege.edu
206.23.84.112	A	quizbowl-skillsusa.org
206.23.84.245	PTR	lws1.ttch.edu
206.23.84.245	A	lws1.tcathohenwald.edu
206.23.84.245	A	lws1.k4ttc.org
206.23.84.249	A	ns1.tcathohenwald.edu
206.23.90.5	A	mail.tcatharriman.edu
206.23.214.2	A	ns1.wscc.cc.tn.us
206.23.214.2	A	ns1.ws.edu
206.23.214.4	A	ns2.ws.edu
206.23.214.4	A	ns2.wscc.cc.tn.us
206.23.214.100	A	cbt.ws.edu
206.23.215.100	A	cbt.ws.edu
206.23.240.6	A+PTR	ast.tsuniv.edu
206.23.240.10	A+PTR	ast2.tsuniv.edu
206.23.240.17	A	coe2.tsuniv.edu
206.23.240.20	A	coe.tsuniv.edu
206.23.246.5	PTR	dns2.mscc.edu
206.23.246.6	A+PTR	proxy.mscc.edu
206.23.246.6	PTR	www.old.mscc.edu
206.23.254.18	A	vpn.tbr.edu