Robtex

Up: 65.220.14.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 65.220.15.0/25
Down right: 65.220.15.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
65.220.15.2	A+PTR	ns1.microcerv.com
65.220.15.2	A	microcerv.com
65.220.15.4	A+PTR	ns2.microcerv.com
65.220.15.4	A	microcerv.com
65.220.15.10	A+PTR	rocca.microcerv.com
65.220.15.11	A+PTR	chanot.microcerv.com
65.220.15.26	A	auror.microcerv.com
65.220.15.43	A	core-router.mssenger.com
65.220.15.134	A+PTR	mc-mail-core.microcerv.com
65.220.15.163	A+PTR	tacticalholdingsinc.com
65.220.15.163	A+PTR	autodiscover.altama.com
65.220.15.163	A+PTR	autodiscover.microcerv.com
65.220.15.193	A+PTR	bwblawyer.com
65.220.15.193	A+PTR	autodiscover.bwblawyer.com
65.220.15.193	A+PTR	autodiscover.bwmattorneys.com
65.220.15.226	PTR	mail2.rddlawfirm.com
65.220.15.236	A	mail.denark.com