The List of Public IP Addresses Microsoft Uses As of September 2016

If you ever wondered how many public IP addresses Microsoft owns for its web and cloud services, here is an official Microsoft Excel spreadsheet you can download to find out.

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Download link: https://www.microsoft.com/en-us/download/details.aspx?id=53602

The document contains public IP address blocks used by Microsoft for both IPv4 and IPv6. You can download the file to check out or simply scan through the list below.

IPv4 used by Microsoft

13.64.0.0/11
13.104.0.0/14
13.96.0.0/13
23.96.0.0/13
40.64.0.0/10
42.159.0.0/16
51.140.0.0/14
51.4.0.0/15
51.51.0.0/16
51.8.0.0/16
52.112.0.0/14
52.145.0.0/16
52.146.0.0/15
52.148.0.0/14
52.152.0.0/13
52.160.0.0/11
52.224.0.0/11
64.4.0.0/18
65.52.0.0/14
66.119.144.0/20
70.37.0.0/17
70.37.128.0/18
91.190.216.0/21
94.245.64.0/18
103.255.140.0/22
103.36.96.0/22
103.9.8.0/22
104.146.0.0/15
104.208.0.0/13
104.40.0.0/13
111.221.16.0/20
111.221.64.0/18
131.253.1.0/24
131.253.12.0/22
131.253.128.0/17
131.253.16.0/23
131.253.18.0/24
131.253.21.0/24
131.253.22.0/23
131.253.24.0/21
131.253.3.0/24
131.253.32.0/20
131.253.5.0/24
131.253.6.0/24
131.253.61.0/24
131.253.62.0/23
131.253.64.0/18
131.253.8.0/24
132.245.0.0/16
134.170.0.0/16
134.177.0.0/16
137.116.0.0/15
137.135.0.0/16
138.196.0.0/16
138.91.0.0/16
139.217.0.0/16
139.219.0.0/16
146.147.0.0/16
150.171.0.0/16
157.54.0.0/15
157.56.0.0/14
157.60.0.0/16
167.220.0.0/16
168.61.0.0/16
168.62.0.0/15
191.232.0.0/13
192.32.0.0/16
192.48.225.0/24
192.84.159.0/24
192.84.160.0/23
192.197.157.0/24
193.149.64.0/19
193.221.113.0/24
194.110.197.0/24
198.49.8.0/24
198.105.232.0/22
198.200.130.0/24
198.206.164.0/24
199.103.122.0/24
199.103.90.0/23
199.242.32.0/20
199.242.48.0/21
199.60.28.0/24
199.74.210.0/24
202.89.224.0/20
204.13.120.0/21
204.14.180.0/22
204.152.140.0/23
204.152.18.0/23
204.231.192.0/24
204.231.194.0/23
204.231.196.0/22
204.231.200.0/21
204.231.208.0/20
204.231.236.0/24
204.79.135.0/24
204.79.179.0/24
204.79.180.0/23
204.79.188.0/24
204.79.195.0/24
204.79.196.0/23
204.79.252.0/24
205.174.224.0/20
206.191.224.0/19
207.46.0.0/16
207.68.128.0/18
208.68.136.0/21
208.76.44.0/22
208.84.0.0/21
209.240.192.0/19
213.199.128.0/18
216.32.180.0/22

IPv6 used by Microsoft

2001:489a:2000::/35
2001:67c:1020::/48
2001:df0:7::/48
2001:df0:d7::/48
2001:df0:d8::/48
2001:df0:d9::/48
2603:1000::/24
2620:0:30::/45
2620:10c:5000::/44
2620:1ec::/36
2801:80:1d0::/48

Kent Chen

Microsoft MVP, IT Professional, Developer, Geek, and the co-founder of Next of Windows.

Last updated: 09/09/2016

Posted in: News
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