Robtex

Up: 67.172.72.0/21
Can't show all results, try to descend to a more specific CIDR
Down left: 67.172.76.0/23
Down right: 67.172.78.0/23
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
67.172.76.178	A	stampede.us.to
67.172.78.11	A+PTR	c-67-172-78-11.hsd1.fl.comcast.net
67.172.78.23	A+PTR	c-67-172-78-23.hsd1.fl.comcast.net
67.172.78.39	A+PTR	c-67-172-78-39.hsd1.fl.comcast.net
67.172.78.68	PTR	c-67-172-78-68.hsd1.fl.comcast.net
67.172.78.109	A+PTR	c-67-172-78-109.hsd1.fl.comcast.net
67.172.78.121	A+PTR	c-67-172-78-121.hsd1.fl.comcast.net
67.172.78.150	A+PTR	c-67-172-78-150.hsd1.fl.comcast.net
67.172.78.164	A+PTR	c-67-172-78-164.hsd1.fl.comcast.net
67.172.78.199	A+PTR	c-67-172-78-199.hsd1.fl.comcast.net
67.172.78.235	PTR	c-67-172-78-235.hsd1.fl.comcast.net
67.172.79.8	A+PTR	c-67-172-79-8.hsd1.fl.comcast.net
67.172.79.146	A+PTR	c-67-172-79-146.hsd1.fl.comcast.net
67.172.79.175	A+PTR	c-67-172-79-175.hsd1.fl.comcast.net
67.172.79.175	A	dwindlers.com
67.172.79.175	A	tournatech.com