Robtex

Up: 69.51.158.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 69.51.159.0/25
Down right: 69.51.159.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
69.51.159.4	PTR	swit2.gdrpmibl.jasnetworks.net
69.51.159.4	A	mail.jaznetworks.com
69.51.159.4	A	mail.jasnetwork.net
69.51.159.5	A	maps.jasnetworks.net
69.51.159.7	PTR	mail.2intensestudios.com
69.51.159.7	PTR	mail.agbfleet.com
69.51.159.7	PTR	mail.aimasphalt.com
69.51.159.8	PTR	secure2.jasnetworks.net
69.51.159.13	PTR	2intensestudios.com
69.51.159.13	PTR	aimasphalt.com
69.51.159.13	PTR	aimtechltd.com
69.51.159.14	A	usage.jasnetworks.net
69.51.159.21	A+PTR	oldns1.jasnetworks.net
69.51.159.22	A	oldns2.jasnetworks.net
69.51.159.23	A+PTR	mrclean.jasnetworks.net
69.51.159.23	A	mrclean.iserv.net
69.51.159.134	A+PTR	mail.krispak.com
69.51.159.142	A	mail.paramount-plastics.com