Robtex

Up: 69.51.144.0/20
Can't show all results, try to descend to a more specific CIDR
Down left: 69.51.144.0/22
Down right: 69.51.148.0/22
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
69.51.144.24	PTR	mail.pointbeing.com
69.51.145.117	A	69-51-145-117-wmu-student.jasnetworks.net
69.51.145.176	PTR	mail.tichenorinc.com
69.51.145.176	A	bossprogram.com
69.51.147.67	A	mail.pmbattlecreek.com
69.51.147.67	A	pmbattlecreek.com
69.51.147.205	PTR	pdmail02.mypuredata.com
69.51.148.80	A+PTR	closeair.jasnetworks.net
69.51.149.15	PTR	ericbuehler.com
69.51.149.15	PTR	familybuehler.com
69.51.149.15	PTR	ericbuehler.net
69.51.149.101	A	brewtimes.com
69.51.149.101	A	mouseconsultants.com
69.51.149.101	A	mouseconsultants.net
69.51.149.103	PTR	69-51-149-103.jasnetworks.net
69.51.149.156	A	cdsco.biz
69.51.150.80	A+PTR	mail.rayner.org
69.51.150.80	A	rayner.org
69.51.150.80	A	mx10.rayner.org
69.51.151.96	PTR	mail.marshallmedical.net
69.51.151.165	A	69-51-151-165.jasnetworks.net
69.51.151.173	PTR	mail.marshallexcelsior.com
69.51.151.225	PTR	mbc-gtwy.marshallbrass.com