Robtex

Up: 66.160.190.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 66.160.191.0/25
Down right: 66.160.191.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
66.160.191.3	PTR	fw01.sfo.com
66.160.191.10	A+PTR	cp01.sfo.com
66.160.191.11	PTR	ns1.sfo.com
66.160.191.12	PTR	ns2.sfo.com
66.160.191.27	PTR	www.activityresources.com
66.160.191.27	A	activityresources.com
66.160.191.28	A+PTR	xsrv1.mc-cubed.net
66.160.191.28	A	mail.grin.net
66.160.191.28	A	yellowjacketguy.com
66.160.191.29	PTR	xsrv1-console.mc-cubed.net
66.160.191.30	A+PTR	xsrv2.mc-cubed.net
66.160.191.30	A	ns2.mc-cubed.net
66.160.191.32	PTR	util.sfo.com
66.160.191.34	A	mastercoach.com
66.160.191.34	A	guerrillatrainer.com
66.160.191.34	A	econetwork.net
66.160.191.40	PTR	spongebob.sfo.com
66.160.191.41	PTR	mail01.sfo.com
66.160.191.42	PTR	mail02.sfo.com
66.160.191.43	PTR	pbx.sfo.com
66.160.191.50	PTR	domains.sfo.com
66.160.191.53	PTR	deadonthecreek.com
66.160.191.54	PTR	sfo.com
66.160.191.180	PTR	cp01.baynetsystems.com
66.160.191.180	A	professionalpaintingco.com
66.160.191.180	A	www.frep.org
66.160.191.181	PTR	hosted.baynetsystems.com
66.160.191.182	PTR	hosted.baynetsystems.com
66.160.191.182	A+PTR	mail.baynetsystems.com
66.160.191.182	A	www.baynetsystems.com
66.160.191.183	PTR	hosted.baynetsystems.com
66.160.191.184	PTR	hosted.baynetsystems.com
66.160.191.185	PTR	hosted.baynetsystems.com
66.160.191.186	PTR	hosted.baynetsystems.com
66.160.191.187	PTR	hosted.baynetsystems.com
66.160.191.188	PTR	hosted.baynetsystems.com
66.160.191.188	A	godsminute.com
66.160.191.188	A	www.godsminute.com
66.160.191.189	PTR	hosted.baynetsystems.com
66.160.191.199	A	brightcreekinc.com
66.160.191.230	PTR	cp02.sfo.com