IP Address for Outlook 365

Question

Hello friends, I have a problem surfing the web to Outlook 365 from browser (any browser).

We are using a firewall that allows browsing only IP range that we set.

The product does not support adding domains (DNS), and the system works well with large cloud services like SalesForce

Because the Office 365 contains many addresses, opened all the addresses listed on this site (you can see in XML or List of addresses at the end of the question.)

Microsoft's link IP addresses to this service.

https://support.office.com/en-us/article/Office-365-URLs-and-IP-address-ranges-8548a211-3fe7-47cb-abb1-355ea5aa88a2

All addresses are open and can still see that the site is blocked different IP address ranges eg: 

93.184.220.20, 104.79.232.29, 212.179.154.221, 172.227.95.206, 212.179.154.246, 172.227.95.206, 13.107.5.80, and more.

In Sniffing, only the operating system worked without other applications besides IE and it seems that the addresses are related to Office 365. (It was also made just as the entrance to the Outlook.office365.com)

I'd love to get help / current addresses yet to be opened so that I could use this service.

The address list opened up now:

Office 365 portal and shared

207.46.141.38/32

13.78.120.99/32

13.92.181.66/32

23.96.253.65/32

52.178.146.67/32

13.84.222.249/32

52.187.78.144/32

104.40.178.127/32

104.214.144.62/32

104.42.225.143/32

168.62.104.83/32

104.42.231.28 

104.209.35.177 

13.91.98.185

13.93.164.45/32

104.42.230.91/32

13.71.145.114/32

13.78.120.70/32

13.78.120.69/32

13.78.120.99/32

13.84.222.249/32

13.92.181.66/32

13.107.6.156/31

13.107.7.190/31

13.107.9.156/31

23.96.251.50/32

23.96.253.65/32

23.97.66.55/32

23.97.78.94/32

40.83.185.155/32

40.83.185.230/32

40.84.145.72/32

40.117.100.187/32

40.117.229.133/32

40.117.229.194/32

52.178.146.67/32

52.187.78.144/32

65.52.240.200/32

65.55.239.168/32

94.245.117.53/32

104.40.178.127/32

104.42.225.143/32

104.47.156.62/32

104.214.144.62/32

104.214.144.252/32

104.214.145.173/32

111.221.104.43/32

137.116.156.3/32

138.91.61.107/32

157.55.145.0/25

157.55.155.0/25

157.55.227.192/26

168.62.104.83/32

168.63.92.133/32

191.238.160.173/32

207.46.73.250/32

207.46.141.38/32

207.46.216.54/32

213.199.128.119/32

13.76.218.117/32

13.76.219.191/32

13.76.219.210/32

13.91.98.185/32

23.96.240.104/32

23.97.61.137/32

23.97.150.21/32

23.97.152.190/32

23.97.209.97/32

23.99.109.44/32

23.99.109.64/32

23.99.116.116/32

23.99.121.207/32

23.100.86.91/32

23.101.14.229/32

23.101.30.126/32

23.102.4.253/32

23.102.155.140/32

40.76.1.176/32

40.76.8.142/32

40.76.12.4/32

40.76.12.162/32

40.83.189.49/32

40.113.8.255/32

40.113.10.78/32

40.113.11.93/32

40.113.14.159/32

40.117.144.240/32

40.117.151.29/32

40.121.144.182/32

40.122.168.103/32

65.52.26.28/32

65.52.148.27/32

65.52.160.218/32

65.52.184.75/32

65.52.196.64/32

65.52.219.207/32

70.37.97.234/32

94.245.108.85/32

104.41.207.73/32

104.42.231.28/32

104.43.140.223/32

104.45.11.195/32

104.45.214.112/32

104.46.1.211/32

104.46.38.64/32

104.46.50.125/32

104.209.35.177/32

104.209.190.8/32

104.210.4.77/32

104.210.40.87/32

104.210.212.243/32

104.214.35.244/32

104.215.146.200/32

104.215.198.144/32

111.221.111.196/32

137.116.66.126/32

137.116.81.187/32

157.55.177.39/32

157.55.184.223/32

157.55.80.94/32

168.61.146.25/32

168.61.149.17/32

168.61.170.80/32

168.61.172.71/32

168.62.204.209/32

168.62.29.225/32

168.62.43.8/32

168.63.18.79/32

168.63.29.74/32

168.63.100.61/32

168.63.138.56/32

168.63.172.54/32

168.63.213.238/32

191.236.88.160/32

191.236.155.80/32

191.237.218.239/32

191.238.177.236/32

207.46.134.255/32

207.46.153.155/32

Office 365 authentication and identity

13.67.50.224/29

13.75.48.16/29

13.75.80.16/29

13.106.56.0/25

23.96.208.238/32

23.97.64.252/32

23.97.66.110/32

23.97.68.113/32

23.97.70.147/32

23.97.72.158/32

23.97.72.161/32

23.97.72.165/32

23.97.98.128/32

23.97.99.4/32

23.97.100.76/32

23.97.100.92/32

23.97.100.105/32

23.97.100.152/32

23.97.103.118/32

23.97.145.9/32

23.97.148.36/32

23.97.148.228/32

23.98.66.168/32

23.98.69.116/32

23.98.70.90/32

23.99.128.120/32

23.99.129.26/32

23.99.129.173/32

23.99.193.105/32

23.99.194.77/32

23.99.196.232/32

23.99.226.167/32

23.99.227.124/32

23.100.16.168/29

23.100.32.136/29

23.100.64.24/29

23.100.72.32/29

23.100.80.64/29

23.100.88.32/29

23.100.101.112/28

23.100.104.16/28

23.100.112.64/29

23.100.120.64/29

23.101.5.104/29

23.101.19.99/32

23.101.25.224/32

23.101.144.136/29

23.101.165.168/29

23.101.178.227/32

23.101.181.128/29

23.101.187.91/32

23.101.210.24/29

23.101.222.240/28

23.101.224.16/29

23.101.226.16/28

23.102.64.138/32

23.102.64.255/32

23.102.65.203/32

23.102.65.221/32

40.112.64.16/28

40.113.192.16/29

40.114.120.16/29

40.115.48.147/32

40.115.52.169/32

40.115.54.162/32

40.115.54.55/32

40.115.55.208/32

40.115.152.16/28

40.127.67.24/29

52.172.144.16/28

65.52.1.16/29

65.52.64.61/32

65.52.64.230/32

65.52.136.224/32

65.52.144.125/32

65.52.193.136/29

65.52.228.75/32

65.52.228.99/32

65.52.228.100/32

65.52.232.52/32

65.52.233.128/32

65.52.236.160/32

65.52.240.73/32

65.52.244.66/32

65.54.54.32/27

65.54.55.201/32

65.54.74.0/23

65.54.165.0/25

65.54.170.128/25

65.55.86.0/23

65.55.233.0/27

70.37.56.152/32

70.37.128.0/23

70.37.142.0/23

70.37.159.0/24

70.37.160.72/32

70.37.160.202/32

94.245.68.0/22

94.245.82.0/23

94.245.84.0/24

94.245.86.0/24

94.245.88.223/32

94.245.88.194/32

104.40.240.48/28

104.41.1.233/32

104.41.13.120/29

104.41.216.16/28

104.42.72.16/29

104.43.208.16/29

104.43.240.16/29

104.44.218.128/25

104.44.254.128/25

104.44.255.0/25

104.45.0.16/28

104.45.208.104/29

104.46.112.8/29

104.46.224.64/28

104.47.143.47/32

104.47.146.37/32

104.209.144.16/29

104.210.48.8/29

104.210.83.160/29

104.210.208.16/29

104.211.16.16/29

104.211.48.16/29

104.211.88.16/28

104.211.98.2/32

104.211.98.6/32

104.211.98.138/32

104.211.98.146/32

104.211.98.194/32

104.211.98.246/32

104.211.99.88/32

104.211.99.127/32

104.211.99.181/32

104.211.99.236/32

104.211.100.160/32

104.211.100.170/32

104.211.100.196/32

104.211.100.204/32

104.211.102.225/32

104.211.152.32/27

104.211.160.36/32

104.211.161.31/32

104.211.161.69/32

104.211.161.150/32

104.211.161.165/32

104.211.161.170/31

104.211.161.185/32

104.211.162.33/32

104.211.162.51/32

104.211.162.180/32

104.211.165.35/32

104.211.166.139/32

104.211.164.26/32

104.211.165.64/32

104.211.216.32/27

104.211.224.71/32

104.211.224.118/32

104.211.225.135/32

104.211.225.215/32

104.211.226.231/32

104.211.226.240/32

104.211.227.110/32

104.211.227.238/32

104.211.229.0/32

104.211.230.178/32

104.211.230.245/32

104.211.231.147/32

104.211.231.248/32

104.215.96.24/29

104.215.144.64/29

104.215.184.16/29

111.221.24.0/21

111.221.70.0/25

111.221.71.0/25

111.221.127.112/28

131.253.120.128/32

134.170.67.0/25

134.170.172.128/25

137.135.47.6/32

137.135.47.4/32

137.135.47.28/32

137.116.32.61/32

137.116.32.101/32

137.116.48.66/32

137.116.48.69/32

137.116.49.27/32

137.116.64.162/32

137.116.80.106/32

137.116.200.108/32

137.116.242.169/32

137.117.99.175/32

137.117.103.21/32

138.91.1.59/32

138.91.2.208/32

138.91.2.210/32

138.91.2.212/32

138.91.17.43/32

138.91.17.108/32

138.91.18.52/32

138.91.56.78/32

138.91.56.97/32

138.91.58.210/32

138.91.59.239/32

138.91.59.78/32

138.91.60.177/32

138.91.61.153/32

138.91.61.35/32

157.55.45.128/25

157.55.59.128/25

157.55.80.175/32

157.55.80.182/32

157.55.84.19/32

157.55.84.237/32

157.55.130.0/25

157.55.161.59/32

157.55.161.75/32

157.55.168.18/32

157.55.176.63/32

157.55.185.100/32

157.55.208.58/32

157.55.208.198/32

157.55.208.218/32

157.55.252.101/32

157.56.48.128/25

157.56.53.128/25

157.56.55.0/25

157.56.58.0/25

157.56.58.192/26

157.56.151.0/25

157.56.8.78/32

157.56.12.18/32

157.56.28.192/32

168.61.32.214/32

168.61.35.252/32

168.61.36.121/32

168.61.37.63/32

168.61.38.105/32

168.61.82.81/32

168.61.85.180/32

168.62.4.28/32

168.62.11.24/32

168.62.11.117/32

168.62.16.112/32

168.62.16.140/32

168.62.16.149/32

168.62.16.252/32

168.62.24.38/32

168.62.24.104/32

168.62.24.114/32

168.62.24.150/32

168.62.41.25/32

168.62.42.89/32

168.62.52.198/32

168.62.52.203/32

168.62.56.108/32

168.62.60.71/32

168.62.60.80/32

168.62.104.146/32

168.62.105.126/32

168.62.105.217/32

168.62.176.34/32

168.62.179.4/32

168.63.25.227/32

168.63.27.2/32

168.63.166.200/32

168.63.165.67/32

168.63.164.177/32

168.63.208.73/32

168.63.250.173/32

168.63.252.39/32

191.232.2.128/25

191.233.37.141/32

191.235.135.139/32

191.235.135.222/32

191.236.192.179/32

191.237.248.32/29

191.237.252.192/28

191.238.80.160/32

191.238.80.241/32

191.238.81.69/32

191.238.83.220/32

191.239.64.124/31

191.239.64.129/32

191.239.64.130/31

191.239.64.132/31

191.239.64.134/32

191.239.160.4/32

191.239.160.93/32

191.239.160.140/30

191.239.160.144/31

207.46.70.0/24

207.46.206.0/23

213.199.128.58/32

213.199.128.91/32

213.199.132.97/32

213.199.148.0/23

Exchange Online

13.107.6.152/31

13.107.9.152/31

13.107.18.10/31

13.107.19.10/31

23.103.160.0/20

23.103.224.0/19

40.96.0.0/13

40.104.0.0/15

70.37.151.128/25

111.221.112.0/21

131.253.33.215

132.245.1.128/25

132.245.2.0/23

132.245.4.0/22

132.245.8.0/21

132.245.16.0/20

132.245.32.0/19

132.245.64.0/19

132.245.96.0/20

132.245.113.128/25

132.245.114.0/23

132.245.116.0/22

132.245.120.0/21

132.245.129.128/25

132.245.130.0/23

132.245.132.0/22

132.245.136.0/21

132.245.144.0/20

132.245.160.0/19

132.245.192.0/18 

132.245.193.128/25

132.245.194.0/23

132.245.196.0/22

132.245.200.0/21

132.245.209.128/25

132.245.210.0/23

132.245.212.0/22

132.245.216.0/21

132.245.224.0/19

134.170.68.0/23

157.56.96.16/28

157.56.96.224/28

157.56.106.128/28

157.56.232.0/21

157.56.240.0/20

191.232.96.0/19

191.234.6.152

191.234.140.0/22

191.234.224.0/22

204.79.197.215

206.191.224.0/19

207.46.150.128/25

207.46.203.128/26

EOP IP address ranges

23.103.132.0/22

23.103.136.0/21

23.103.144.0/20

23.103.198.0/23

23.103.200.0/21

40.92.0.0/14

40.107.0.0/16  

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

157.56.87.192/26

157.56.110.0/23

157.56.112.0/24

157.56.116.0/25

157.56.120.0/25

207.46.51.64/26

207.46.100.0/24

207.46.108.0/25

207.46.163.0/24

213.199.154.0/24

213.199.180.128/26

216.32.180.0/23

23.103.148.0/22

23.103.191.0/24

23.103.198.0/23

23.103.200.0/21

64.4.22.64/26

65.55.169.0/24

104.47.32.0/19

157.55.133.0/25

157.55.158.0/23

157.56.87.192/26

157.56.110.0/23

207.46.100.0/24

207.46.101.128/26

207.46.108.0/25

207.46.163.0/24

216.32.180.0/24

216.32.181.0/24

23.103.144.0/22

94.245.120.64/26

104.47.0.0/19

134.170.101.0/24

134.170.171.0/24

157.56.112.0/24

157.56.116.0/25

157.56.120.0/25

157.55.234.0/24

213.199.154.0/24

213.199.180.128/26

23.103.136.0/21

23.103.152.0/22

23.103.155.0/27

23.103.155.64/27

65.55.88.0/24

104.47.64.0/19

134.170.140.0/24

207.46.51.64/26

Office Online

13.69.187.20/32

13.70.184.242/32

13.71.155.176/32

13.75.153.216/32

13.76.140.48/32

13.78.114.39/32

13.85.84.102/32

13.88.248.161/32

13.88.254.212/32

13.94.209.165/32

23.103.183.15/32

40.68.166.51/32

40.74.130.243/32

40.74.138.42/32

40.76.54.124/32

40.86.230.88/32

40.114.192.209/32

40.117.226.146/32

40.126.236.216/32

40.127.79.139/32

52.169.109.48/32

52.172.13.171/32

52.172.153.104/32

52.175.25.142/32

52.232.128.169/32

104.40.225.204/32

104.41.62.54/32

104.211.103.207/32

104.211.229.230/32

104.214.38.136/32

104.215.194.17/32

134.170.27.86/32

134.170.48.20/32

134.170.48.22/32

134.170.65.86/32

134.170.170.86/32

137.116.172.39/32

137.135.65.72/32

191.235.87.181/32

191.237.40.220/32

Planner

13.107.6.160/32

13.107.9.160/32

23.97.56.236/32

23.97.78.215/32

40.76.80.180/32

40.112.223.206/32

40.127.139.229/32

104.40.214.0/32

104.43.235.252/32

Office 365 remote analyzer tools

13.67.59.89/32

40.85.91.8/32

104.208.36.70/32

Answer 1

Hi Tzuri B.E,

Thanks for your feedback.

As Shyamal mentioned above, the issue may lie with the firewall settings from the system side. If the firewall ports are opened and the issue still happens, it is recommended you contact your firewall technical support for further assistance. Your understanding is highly appreciated.

Meanwhile, if there are more IP addresses to access Office 365, we will update the article normally.

Thanks,

Gary

Answer 2

Dear Shamal,

I know that the problem is the firewall, I checked all the articles from Microsoft about office365 and I set all addresses (opened all the addresses I did above question).

Do you know of another range of addresses that prevents browsing to office 365 (not found another and blocked addresses related to Office 365) ?

Note!

Because the firewall does not support domain names, I can allow only by IP addresses

Answer 3

Hi Tzuri B.E,

Thanks for your reply.

To narrow down the issue, please provide the following information:

1. What kind of Office 365 websites you can’t visit?
2. The screenshots of the error in the browser when you try visiting the Office 365 websites.

Thanks,

Gary

Answer 4

Dear Gray,

i add all the IP range in my list to FW and it's still not working.

do you know if i need to add more ip range ?

Thanks,

Tzuri Ben Ezra

Answer 5

Hi Tzuri B.E,

I understand you can’t view Outlook Web App (OWA: https://outlook.office365.com/owa) in the computer since the IPs are blocked by the firewall of your organization. Given the situation, we recommend you add the IPs to the firewall.

If there is any unclear, feel free to post back.

Thanks,

Gary