Robtex

Up: 68.84.192.0/19
Can't show all results, try to descend to a more specific CIDR
Down left: 68.84.208.0/21
Down right: 68.84.216.0/21
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
68.84.208.50	A	c-68-84-208-50.hsd1.pa.comcast.net
68.84.210.13	A+PTR	c-68-84-210-13.hsd1.pa.comcast.net
68.84.210.92	A+PTR	c-68-84-210-92.hsd1.pa.comcast.net
68.84.210.92	A	grandviewusa.com
68.84.211.87	A	andrewwiegand.org
68.84.211.87	A	chillexistence.com
68.84.211.87	A	andrewcares.org
68.84.211.98	PTR	c-68-84-211-98.hsd1.pa.comcast.net
68.84.211.98	A	nickbattista.com
68.84.211.154	A	greensouls.com
68.84.211.154	A	wizard101almanac.com
68.84.212.37	A	c-68-84-212-37.hsd1.pa.comcast.net
68.84.212.95	A	c-68-84-212-95.hsd1.pa.comcast.net
68.84.213.26	A+PTR	c-68-84-213-26.hsd1.pa.comcast.net
68.84.213.99	A+PTR	c-68-84-213-99.hsd1.pa.comcast.net
68.84.213.142	A+PTR	c-68-84-213-142.hsd1.pa.comcast.net
68.84.215.117	A	c-68-84-215-117.hsd1.pa.comcast.net
68.84.215.221	A	iliff.org
68.84.216.2	A+PTR	c-68-84-216-2.hsd1.de.comcast.net
68.84.216.3	A+PTR	c-68-84-216-3.hsd1.de.comcast.net
68.84.216.31	A	pucketts13.com
68.84.216.47	A	c-68-84-216-47.hsd1.de.comcast.net
68.84.216.61	A	c-68-84-216-61.hsd1.de.comcast.net
68.84.216.176	A+PTR	c-68-84-216-176.hsd1.de.comcast.net
68.84.216.183	A	c-68-84-216-183.hsd1.de.comcast.net
68.84.217.5	A	c-68-84-217-5.hsd1.de.comcast.net
68.84.217.86	A	c-68-84-217-86.hsd1.de.comcast.net
68.84.217.124	A	c-68-84-217-124.hsd1.de.comcast.net
68.84.219.97	A	c-68-84-219-97.hsd1.pa.comcast.net
68.84.220.20	A+PTR	c-68-84-220-20.hsd1.pa.comcast.net
68.84.220.90	PTR	c-68-84-220-90.hsd1.pa.comcast.net
68.84.220.173	PTR	c-68-84-220-173.hsd1.pa.comcast.net
68.84.220.199	A+PTR	c-68-84-220-199.hsd1.pa.comcast.net
68.84.220.250	A	c-68-84-220-250.hsd1.pa.comcast.net
68.84.221.48	A	sweeneyelectronics.com
68.84.222.31	A	nrginergy.com
68.84.222.209	PTR	c-68-84-222-209.hsd1.pa.comcast.net
68.84.222.217	A	bageez.us
68.84.222.217	A	mail.bageez.us
68.84.222.251	A	c-68-84-222-251.hsd1.pa.comcast.net
68.84.223.84	A	c-68-84-223-84.hsd1.pa.comcast.net