Robtex

Up: 204.108.16.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 204.108.16.0/22
Down right: 204.108.20.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
204.108.16.0	PTR	pacificgatewayworkforce.net
204.108.16.0	PTR	pacificgatewayworkforce.org
204.108.16.0	A	*.wefpcx.com
204.108.16.12	A	clbchma00.longbeach.gov
204.108.16.41	A+PTR	mail1.longbeach.gov
204.108.16.41	A	mail1.lbpl.org
204.108.16.41	A	mail1.lbwater.org
204.108.16.57	PTR	www.lbhealthlab.org
204.108.16.57	A+PTR	lbhealthlab.org
204.108.16.101	A	clbchbbout.longbeach.gov
204.108.16.109	A	lbhealthlab.org
204.108.16.111	A	dns01.ci.long-beach.ca.us
204.108.16.112	A+PTR	dns02.ci.long-beach.ca.us
204.108.16.114	PTR	longbeachcupa.com
204.108.16.114	A+PTR	longbeachcupa.org
204.108.16.114	PTR	www.longbeachcupa.com
204.108.16.115	A	tsdgis.longbeach.gov
204.108.16.117	A	www.longbeach.gov
204.108.16.139	A+PTR	mail.longbeach.gov
204.108.16.139	A+PTR	clbchpass1.longbeach.gov
204.108.16.139	A+PTR	hybrid.longbeach.gov
204.108.16.153	PTR	lbdistrict5.com
204.108.16.153	PTR	longbeachdistrict5.com
204.108.16.153	PTR	pacificgatewayworkforce.com
204.108.16.154	PTR	lbtv3.com
204.108.16.154	PTR	www.lbtv3.com
204.108.16.154	PTR	testgoogle.longbeach.gov
204.108.16.162	A	wwwbittest.longbeach.gov
204.108.16.200	A	clbgistest.longbeach.gov
204.108.18.42	A+PTR	webmail.longbeach.gov
204.108.18.42	A+PTR	clbchma0.ci.long-beach.ca.us
204.108.18.71	A+PTR	clbvcse.ci.long-beach.ca.us
204.108.18.71	A+PTR	video.longbeach.gov
204.108.18.82	A	mail2.lbwater.org
204.108.18.82	A	mail2.longbeach.gov
204.108.18.111	A+PTR	eocdns01.ci.long-beach.ca.us
204.108.18.112	A+PTR	eocdns02.ci.long-beach.ca.us