Robtex

Up: 131.253.32.0/23
Can't show all results, try to descend to a more specific CIDR
Down left: 131.253.33.0/25
Down right: 131.253.33.128/25
(Some of the IP numbers are capped at 3 entries)

IP	Type	Hostname
131.253.33.1	A+PTR	ns1.dc-msedge.net
131.253.33.2	A+PTR	ns2.dc-msedge.net
131.253.33.22	PTR	hk2edge01102vn.msedge.net
131.253.33.50	PTR	c-0001.dc-msedge.net
131.253.33.50	A	au.c-0001.e-msedge.net
131.253.33.50	A	main.dl.windowsupdate.com.nsatc.net
131.253.33.200	PTR	a-0001.dc-msedge.net
131.253.33.200	A	bingflight.com
131.253.33.200	A	news.live.com
131.253.33.201	A+PTR	a-0002.dc-msedge.net
131.253.33.201	A	ts1.mm.explicit.bing.net
131.253.33.201	A	*.explicit.bing.net
131.253.33.203	A+PTR	a-0003.dc-msedge.net
131.253.33.203	A	u-msn-com.a-0003.a-msedge.net
131.253.33.203	A	api.msn.com
131.253.33.204	A+PTR	a-0005.dc-msedge.net
131.253.33.208	A+PTR	a-0006.dc-msedge.net
131.253.33.208	A	blu180-mail-live-com.a-0006.a-msedge.net
131.253.33.208	A	blu179.afx.ms
131.253.33.209	A+PTR	a-0007.dc-msedge.net
131.253.33.210	A+PTR	a-0008.dc-msedge.net
131.253.33.210	A	col131-mail-live-com.a-0008.a-msedge.net
131.253.33.211	A+PTR	a-0009.dc-msedge.net
131.253.33.211	A	dub119-afx.ms.a-0009.a-msedge.net
131.253.33.211	A	dub123.mail.live.com.akadns.net
131.253.33.213	A+PTR	a-0011.dc-msedge.net
131.253.33.213	A	bn1301-storage-live-com.a-0011.dc-msedge.net
131.253.33.213	A	ch3302-storage-live-com.a-0011.dc-msedge.net
131.253.33.217	A	a-0014.dc-msedge.net
131.253.33.219	A	a-0016.dc-msedge.net
131.253.33.220	A	a-0017.dc-msedge.net
131.253.33.223	A	www-bing-com.a-0020.dc-msedge.net
131.253.33.223	A	a-0020.dc-msedge.net
131.253.33.234	A	a-0031.dc-msedge.net
131.253.33.235	A	a-0032.dc-msedge.net
131.253.33.253	A	a-9998.dc-msedge.net
131.253.33.254	A	a-9999.dc-msedge.net