Robtex

Up: 65.54.188.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 65.54.188.0/25
Down right: 65.54.188.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
65.54.188.9	A	billingservices.microsoft.com
65.54.188.10	A	reportingservices.microsoft.com
65.54.188.12	A	samsla.microsoft.com
65.54.188.72	A	bay0-mc1-f.bay0.hotmail.com
65.54.188.72	A	seanbone.co.uk
65.54.188.72	A	mx2.hotmail.com
65.54.188.78	A	1037088872.pamx1.hotmail.com
65.54.188.78	A	407543986b95524d843811acae2143.pamx1.hotmail.com
65.54.188.78	A	84221630.pamx1.hotmail.com
65.54.188.94	A+PTR	mx3.hotmail.com
65.54.188.94	A	seanbone.co.uk
65.54.188.94	A	mx2.hotmail.com
65.54.188.109	A	1037088872.pamx1.hotmail.com
65.54.188.109	A	407543986b95524d843811acae2143.pamx1.hotmail.com
65.54.188.109	A	84221630.pamx1.hotmail.com
65.54.188.110	A	seanbone.co.uk
65.54.188.110	A	mx3.hotmail.com
65.54.188.110	A	bay0-mc3-f.bay0.hotmail.com
65.54.188.126	A	seanbone.co.uk
65.54.188.126	A	bay0-mc4-f.bay0.hotmail.com
65.54.188.141	A	prd5mon.azuredns-cloud.net