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Exchange Online IP Addresses


Up to date list can be viewed here:
https://technet.microsoft.com/en-us/library/dn163583(v=exchg.150).aspx

as of 2015-05-14 here is the list:

23.103.132.0/22
23.103.136.0/21
23.103.144.0/20
23.103.191.0/24
23.103.198.0/23
23.103.200.0/21
40.107.0.0/16  
64.4.22.64/26
65.55.83.128/27
65.55.88.0/24
65.55.169.0/24
94.245.120.64/26
104.47.0.0/17
134.170.101.0/24
134.170.140.0/24
134.170.171.0/24
157.55.133.0/25
157.55.158.0/23
157.55.206.0/23
157.55.234.0/24
157.56.73.0/24
157.56.87.192/26
157.56.108.0/24
157.56.110.0/23
157.56.111.0/24
157.56.112.0/24
157.56.116.0/25
157.56.120.0/25
157.56.206.0/24
157.56.208.0/22
207.46.51.64/26
207.46.100.0/24
207.46.101.128/26
207.46.108.0/25
207.46.163.0/24
213.199.154.0/24
213.199.180.128/26
216.32.180.0/24
216.32.181.0/24

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