Robtex

Up: 68.234.32.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 68.234.40.0/22
Down right: 68.234.44.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
68.234.43.36	A+PTR	atlas.profitpointinc.com
68.234.43.38	A+PTR	www.reward4loyalty.com
68.234.43.38	A	reward4loyalty.com
68.234.43.51	PTR	51-43-234-68.static.affiniti.com
68.234.43.116	PTR	116-43-234-68.static.stingcomm.net
68.234.43.122	PTR	122-43-234-68.static.stingcomm.net
68.234.43.145	A	ftp.transcendunited.com
68.234.43.147	PTR	acadweb1.academyone.com
68.234.43.147	A	davidmoldoff.com
68.234.43.147	A	changingcolleges.org
68.234.43.165	PTR	165-43-234-68.static.stingcomm.net
68.234.43.169	PTR	169-43-234-68.static.stingcomm.net
68.234.43.170	PTR	170-43-234-68.static.affiniti.com
68.234.43.183	A	mail.transcendunited.com
68.234.43.185	PTR	185-43-234-68.static.affiniti.com
68.234.43.189	A	transcendinc.net
68.234.43.189	A	transcendunited.net
68.234.43.189	A	transcendunited.mobi
68.234.43.212	PTR	212-43-234-68.static.stingcomm.net
68.234.44.5	PTR	5-44-234-68.static.stingcomm.net
68.234.44.9	PTR	9-44-234-68.static.affiniti.com
68.234.44.33	PTR	33-44-234-68.static.affiniti.com
68.234.44.35	PTR	35-44-234-68.static.stingcomm.net
68.234.45.10	A+PTR	mail.firstseniorfinancialgroup.com
68.234.45.40	PTR	40-45-234-68.static.stingcomm.net
68.234.45.45	PTR	45-45-234-68.static.stingcomm.net
68.234.45.82	A	mail.philaseniorcenter.org
68.234.45.82	A	mail.newcourtland.org
68.234.45.83	PTR	cuda.newcourtland.org
68.234.45.83	A	cuda.courtlandeducation.com
68.234.45.83	A	cuda.germantownhome.org
68.234.45.100	A	mail.inc-inc.net
68.234.45.137	PTR	137-45-234-68.static.affiniti.com
68.234.45.164	A	mail1.clarkinc.biz
68.234.45.171	PTR	171-45-234-68.static.stingcomm.net
68.234.45.171	A	xyz-group.com
68.234.45.171	A	clarkturnkeysolutions.com
68.234.45.174	A	clarkinet.com
68.234.45.175	A	nobleproducts.biz
68.234.45.178	PTR	178-45-234-68.static.stingcomm.net
68.234.45.181	A	clarkstatecontract.com
68.234.45.181	A	regencytablesandsinks.com
68.234.45.181	A	*.cms-lanc.com
68.234.45.185	PTR	www.therestaurantstore.com
68.234.45.185	A	clarkemail.therestaurantstore.com
68.234.45.185	A	therestaurantstore.com
68.234.45.187	PTR	www.webstaurantstore.com
68.234.45.187	A	*.webstaurantstore.com
68.234.47.20	A+PTR	host-68-234-47-20.static.sprious.com