Robtex

Up: 208.75.0.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 208.75.8.0/22
Down right: 208.75.12.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
208.75.8.16	PTR	208-75-8-16.lax-1.static.ip.broadcore.com
208.75.8.16	A	login.broadcore.com
208.75.8.16	A	bwews1.broadcore.com
208.75.8.21	A	ftp.broadcore.com
208.75.8.23	A	im.masergy.com
208.75.8.24	A	bwuss.masergy.com
208.75.8.28	A	laxsp1.broadcore.com
208.75.8.31	A	ucbcxsi.masergy.com
208.75.8.31	A	ucbcxsisrv.masergy.com
208.75.8.53	A	ntp.broadcore.com
208.75.8.53	A	ns2.broadcore.com
208.75.8.100	A	mailgate.broadcore.com
208.75.8.115	PTR	208-75-8-115.lax-1.static.ip.broadcore.com
208.75.9.40	A+PTR	east.broadcore.com
208.75.9.40	A	acc-pub-dcao.broadcore.com
208.75.9.40	A	nyacme1.broadcore.com
208.75.11.25	PTR	208-75-11-25.lax-1.static.ip.broadcore.com
208.75.11.40	PTR	208-75-11-40.lax-1.static.ip.broadcore.com
208.75.11.40	A	west.broadcore.com
208.75.11.40	A	acc-pub-laxb.broadcore.com
208.75.11.97	PTR	208-75-11-97.lax-1.static.ip.broadcore.com
208.75.11.153	PTR	208-75-11-153.lax-1.static.ip.broadcore.com
208.75.11.210	PTR	208-75-11-210.lax-1.static.ip.broadcore.com
208.75.12.40	PTR	accesspub.loni.broadcore.com
208.75.12.40	A	acc-pub-loni.broadcore.com
208.75.14.10	PTR	208-75-14-10.nyc-1.static.ip.broadcore.com
208.75.14.58	PTR	208-75-14-58.nyc-1.static.ip.broadcore.com
208.75.14.99	PTR	208-75-14-99.nyc-1.static.ip.broadcore.com
208.75.14.138	PTR	208-75-14-138.nyc-1.static.ip.broadcore.com
208.75.14.249	PTR	208-75-14-249.nyc-1.static.ip.broadcore.com
208.75.15.1	PTR	208-75-15-1.nyc-1.static.ip.broadcore.com
208.75.15.11	PTR	208-75-15-11.nyc-1.static.ip.broadcore.com
208.75.15.19	PTR	208-75-15-19.nyc-1.static.ip.broadcore.com
208.75.15.27	PTR	208-75-15-27.nyc-1.static.ip.broadcore.com
208.75.15.41	PTR	208-75-15-41.nyc-1.static.ip.broadcore.com
208.75.15.43	PTR	208-75-15-43.nyc-1.static.ip.broadcore.com
208.75.15.59	PTR	208-75-15-59.nyc-1.static.ip.broadcore.com
208.75.15.66	PTR	208-75-15-66.nyc-1.static.ip.broadcore.com
208.75.15.88	PTR	208-75-15-88.nyc-1.static.ip.broadcore.com
208.75.15.91	PTR	208-75-15-91.nyc-1.static.ip.broadcore.com
208.75.15.104	PTR	208-75-15-104.nyc-1.static.ip.broadcore.com
208.75.15.105	PTR	208-75-15-105.nyc-1.static.ip.broadcore.com
208.75.15.112	PTR	208-75-15-112.nyc-1.static.ip.broadcore.com
208.75.15.128	PTR	208-75-15-128.nyc-1.static.ip.broadcore.com
208.75.15.131	PTR	208-75-15-131.nyc-1.static.ip.broadcore.com
208.75.15.146	PTR	208-75-15-146.nyc-1.static.ip.broadcore.com
208.75.15.152	PTR	208-75-15-152.nyc-1.static.ip.broadcore.com
208.75.15.155	PTR	208-75-15-155.nyc-1.static.ip.broadcore.com
208.75.15.169	PTR	208-75-15-169.nyc-1.static.ip.broadcore.com
208.75.15.184	PTR	208-75-15-184.nyc-1.static.ip.broadcore.com
208.75.15.185	PTR	208-75-15-185.nyc-1.static.ip.broadcore.com
208.75.15.187	PTR	208-75-15-187.nyc-1.static.ip.broadcore.com
208.75.15.192	PTR	208-75-15-192.nyc-1.static.ip.broadcore.com
208.75.15.216	PTR	208-75-15-216.nyc-1.static.ip.broadcore.com
208.75.15.217	PTR	208-75-15-217.nyc-1.static.ip.broadcore.com
208.75.15.233	PTR	208-75-15-233.nyc-1.static.ip.broadcore.com
208.75.15.240	PTR	208-75-15-240.nyc-1.static.ip.broadcore.com
208.75.15.241	PTR	208-75-15-241.nyc-1.static.ip.broadcore.com
208.75.15.249	PTR	208-75-15-249.nyc-1.static.ip.broadcore.com
208.75.15.250	PTR	208-75-15-250.nyc-1.static.ip.broadcore.com