Robtex

Up: 52.104.0.0/13
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Down left: 52.104.0.0/15
Down right: 52.106.0.0/15

IP	Type	Hostname
52.104.9.53	A	prodnet11413-11414ipv4a0000.sharepointonline.com.akadns.net
52.104.14.36	A	prodnet823-819ipv4a0003.sharepointonline.com.akadns.net
52.104.16.55	A	prodnet10656-10657selectora0000.sharepointonline.com.akadns.net
52.105.0.25	A	prodnet11358-11359ipv4a0000.sharepointonline.com.akadns.net
52.105.0.25	A	prodnet11358-11359selectora0000.sharepointonline.com.akadns.net
52.105.0.27	A	prodnet11366-11367selectora0000.sharepointonline.com.akadns.net
52.105.0.27	A	prodnet11366-11367ipv4a0000.sharepointonline.com.akadns.net
52.105.9.53	A	prodnet11400-11401ipv4a0000.sharepointonline.com.akadns.net
52.105.10.39	A	prodnet11404-11405ipv4a0000.sharepointonline.com.akadns.net
52.105.14.27	A	prodnet11480-11481ipv4a0000.sharepointonline.com.akadns.net
52.105.14.41	A	prodnet11476-11477ipv4a0000.sharepointonline.com.akadns.net
52.105.15.27	A	prodnet11460-11461ipv4a0000.sharepointonline.com.akadns.net
52.105.16.53	A	prodnet11455-11456ipv4a0000.sharepointonline.com.akadns.net
52.105.17.25	A	prodnet11472-11473ipv4a0000.sharepointonline.com.akadns.net
52.105.17.39	A	prodnet11474-11475ipv4a0000.sharepointonline.com.akadns.net
52.105.192.39	A	prodnet12478-12479selectora0000.sharepointonline.com.akadns.net
52.105.192.39	A	prodnet12478-12479ipv4a0000.sharepointonline.com.akadns.net
52.105.192.53	A	prodnet12482-12483selectora0000.sharepointonline.com.akadns.net
52.105.192.53	A	prodnet12482-12483ipv4a0000.sharepointonline.com.akadns.net
52.105.193.39	A	prodnet12478-12479ipv4a0000.sharepointonline.com.akadns.net
52.105.196.39	A	prodnet11396-11397ipv4a0000.sharepointonline.com.akadns.net
52.105.197.53	A	prodnet11392-11393ipv4a0000.sharepointonline.com.akadns.net
52.105.198.53	A	prodnet12531-12538ipv4a0000.sharepointonline.com.akadns.net
52.105.199.39	A	prodnet12533-12540ipv4a0000.sharepointonline.com.akadns.net