Robtex

Up: 204.128.64.0/18
Can't show all results, try to descend to a more specific CIDR
Down left: 204.128.64.0/20
Down right: 204.128.80.0/20
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.128.64.68	A+PTR	9721x-smtpu.brevardschools.org
204.128.64.102	A+PTR	esf-scan.brevard.k12.fl.us
204.128.64.202	A+PTR	edulog9170.brevardschools.org
204.128.64.202	A+PTR	edulog9170.brevard.k12.fl.us
204.128.64.209	A	edulog.brevardschools.org
204.128.65.23	PTR	bpsonline.brevardschools.org
204.128.65.23	PTR	bpsonline.brevard.k12.fl.us
204.128.65.32	A+PTR	sftp.brevardschools.org
204.128.65.32	A+PTR	sftp.brevard.k12.fl.us
204.128.65.33	A	passwordreset.brevard.k12.fl.us
204.128.65.34	A+PTR	iss.brevard.k12.fl.us
204.128.65.40	PTR	isa.brevardschools.org
204.128.68.50	A+PTR	9721x-smtpas400.brevardschools.org
204.128.68.50	A+PTR	9721x-smtpas400.brevard.k12.fl.us
204.128.68.51	PTR	eagenda.brevardschools.org
204.128.68.51	A+PTR	eagendatoc.brevardschools.org
204.128.68.51	PTR	eagenda.brevard.k12.fl.us
204.128.68.53	PTR	listserv.brevardschools.org
204.128.68.53	PTR	listserv.brevard.k12.fl.us
204.128.68.70	A	carroll.es.brevard.k12.fl.us
204.128.68.70	A	brevardcountyschools.net
204.128.68.70	A	tropical.es.brevardschools.org
204.128.68.71	PTR	ctebrevard.com
204.128.68.71	PTR	mcnairmagnetschool.com
204.128.68.71	PTR	www.ctebrevard.com
204.128.70.27	A+PTR	smtp2.brevardschools.org
204.128.70.27	PTR	smtp2.brevard.k12.fl.us
204.128.70.29	A+PTR	smtp1.brevardschools.org
204.128.70.29	A+PTR	smtp1.brevard.k12.fl.us
204.128.70.68	PTR	ext-dns2.brevard.k12.fl.us
204.128.70.68	A	ns2.schoolsofbrevard.org
204.128.70.68	A	ext-dns2.brevardschools.org
204.128.70.69	PTR	ext-dns1.brevard.k12.fl.us
204.128.70.69	A	www.leadwithliteracy.com
204.128.70.72	PTR	9721x-vpn02.brevardschools.org
204.128.70.126	A	ns4.schoolsofbrevard.com
204.128.70.132	A	ext-dns3.brevard.k12.fl.us
204.128.70.132	A	ns3.brevard.k12.fl.us
204.128.73.40	A	ext-dns4.brevardschools.org
204.128.73.40	A	ns4.brevardschools.net
204.128.73.40	A	ns4.brevardschoolsedu.com