Overview
If your app stays in a "connecting" mode or has timed out due to "Network error, please try again" or "Can't connect to our service, please check your network connection and try again" issues, it could be related to your network connection, network firewall settings, or web security gateway settings.
Note: Check your network connection by opening a browser and ensure that you can access https://zoom.us
This article covers:
Zoom firewall rules
To configure your network firewall, please see the following table. All rules should be applied both inbound and outbound.
Protocol |
Ports |
Source |
Destination |
TCP |
80,443 |
All Zoom clients |
*.zoom.us |
TCP |
443, 8801, 8802 |
All Zoom clients |
IPv4:
3.7.35.0/25 3.21.137.128/25 3.22.11.0/24 3.23.93.0/24 3.25.41.128/25 3.25.42.0/25 3.25.49.0/24 3.80.20.128/25 3.96.19.0/24 3.101.32.128/25 3.101.52.0/25 3.104.34.128/25 3.120.121.0/25 3.127.194.128/25 3.208.72.0/25 3.211.241.0/25 3.235.69.0/25 3.235.82.0/23 3.235.71.128/25 3.235.72.128/25 3.235.73.0/25 3.235.96.0/23 4.34.125.128/25 4.35.64.128/25 8.5.128.0/23 13.52.6.128/25 13.52.146.0/25 18.157.88.0/24 18.205.93.128/25 50.239.202.0/23 50.239.204.0/24 52.61.100.128/25 52.81.151.128/25 52.81.215.0/24 52.202.62.192/26 52.215.168.0/25 64.125.62.0/24 64.211.144.0/24 65.39.152.0/24 69.174.57.0/24 69.174.108.0/22 99.79.20.0/25 101.36.167.0/24 103.122.166.0/23 111.33.115.0/25 111.33.181.0/25 115.110.154.192/26 115.114.56.192/26 115.114.115.0/26 115.114.131.0/26 120.29.148.0/24 129.151.0.0/20 129.159.0.0/20 130.61.164.0/22 134.224.0.0/16 140.238.128.0/24 140.238.232.0/22 144.195.0.0/16 147.124.96.0/19 149.137.0.0/17 152.67.20.0/24 152.67.118.0/24 152.67.168.0/22 152.67.180.0/24 152.67.184.0/22 152.67.240.0/21 158.101.64.0/24 160.1.56.128/25 161.189.199.0/25 161.199.136.0/22 162.12.232.0/22 162.255.36.0/22 165.254.88.0/23 168.138.16.0/22 168.138.48.0/24 168.138.56.0/21 168.138.72.0/24 168.138.74.0/25 168.138.96.0/22 168.138.116.0/22 168.138.244.0/24 170.114.0.0/16 173.231.80.0/20 192.204.12.0/22 193.122.32.0/22 193.122.36.0/22
193.122.208.0/20 193.122.224.0/20 193.122.240.0/20 193.123.0.0/19 193.123.40.0/22 193.123.44.0/22 193.123.128.0/19 193.123.168.0/21 193.123.192.0/19 198.251.128.0/17 202.177.207.128/27 204.80.104.0/21 204.141.28.0/22 207.226.132.0/24 209.9.211.0/24 209.9.215.0/24 213.19.144.0/24 213.19.153.0/24 213.244.140.0/24 221.122.88.64/27 221.122.88.128/25 221.122.89.128/25 221.123.139.192/27
IPv6: 2620:123:2000::/40
|
UDP |
3478, 3479, 8801 - 8810
|
All Zoom clients |
IPv4:
3.7.35.0/25 3.21.137.128/25 3.22.11.0/24 3.23.93.0/24 3.25.41.128/25 3.25.42.0/25 3.25.49.0/24 3.80.20.128/25 3.96.19.0/24 3.101.32.128/25 3.101.52.0/25 3.104.34.128/25 3.120.121.0/25 3.127.194.128/25 3.208.72.0/25 3.211.241.0/25 3.235.69.0/25 3.235.82.0/23 3.235.71.128/25 3.235.72.128/25 3.235.73.0/25 3.235.96.0/23 4.34.125.128/25 4.35.64.128/25 8.5.128.0/23 13.52.6.128/25 13.52.146.0/25 18.157.88.0/24 18.205.93.128/25 50.239.202.0/23 50.239.204.0/24 52.61.100.128/25 52.81.151.128/25 52.81.215.0/24 52.202.62.192/26 52.215.168.0/25 64.125.62.0/24 64.211.144.0/24 65.39.152.0/24 69.174.57.0/24 69.174.108.0/22 99.79.20.0/25 101.36.167.0/24 103.122.166.0/23 111.33.115.0/25 111.33.181.0/25 115.110.154.192/26 115.114.56.192/26 115.114.115.0/26 115.114.131.0/26 120.29.148.0/24 129.151.0.0/20 129.159.0.0/20 130.61.164.0/22 134.224.0.0/16 140.238.128.0/24 140.238.232.0/22 144.195.0.0/16 147.124.96.0/19 149.137.0.0/17 152.67.20.0/24 152.67.118.0/24 152.67.168.0/22 152.67.180.0/24 152.67.184.0/22 152.67.240.0/21 158.101.64.0/24 160.1.56.128/25 161.189.199.0/25 161.199.136.0/22 162.12.232.0/22 162.255.36.0/22 165.254.88.0/23 168.138.16.0/22 168.138.48.0/24 168.138.56.0/21 168.138.72.0/24 168.138.74.0/25 168.138.96.0/22 168.138.116.0/22 168.138.244.0/24 170.114.0.0/16 173.231.80.0/20 192.204.12.0/22 193.122.32.0/22 193.122.36.0/22
193.122.208.0/20 193.122.224.0/20 193.122.240.0/20 193.123.0.0/19 193.123.40.0/22 193.123.44.0/22 193.123.128.0/19 193.123.168.0/21 193.123.192.0/19 198.251.128.0/17 202.177.207.128/27 204.80.104.0/21 204.141.28.0/22 207.226.132.0/24 209.9.211.0/24 209.9.215.0/24 213.19.144.0/24 213.19.153.0/24 213.244.140.0/24 221.122.88.64/27 221.122.88.128/25 221.122.89.128/25 221.123.139.192/27
IPv6: 2620:123:2000::/40
|
Firewall rules for Zoom Phone
Note:
Protocol |
Ports |
Source |
Destination |
TCP |
5091 |
All Zoom clients |
8.5.128.0/24 64.211.144.0/24 65.39.152.0/24 69.174.57.0/24 103.122.166.0/23 120.29.148.0/24 147.124.96.0/19 149.137.0.0/17 149.137.25.0/24 149.137.41.0/24 162.12.232.0/22 173.231.92.0/24 173.231.94.0/24 192.204.12.0/22 209.9.215.0/24 213.19.144.0/24 213.19.153.0/24 213.244.140.0/24
|
TCP |
390 (see note) |
All Zoom clients |
3.21.137.128/25 3.235.96.60/32 3.235.96.61/32 3.235.96.62/32 3.235.96.63/32 3.235.96.94/32 3.235.96.95/32 3.235.96.96/32 3.235.96.97/32
|
UDP |
20000-64000 |
All Zoom Clients |
64.211.144.0/24 65.39.152.0/24 69.174.57.0/24 103.122.166.0/23 147.124.96.0/19 149.137.0.0/17 149.137.25.0/24 149.137.41.0/24 162.12.232.0/22 173.231.92.0/24 173.231.94.0/24 207.226.132.0/24 209.9.211.0/24 213.19.144.0/24 213.244.140.0/24
|
Firewall rules for Zoom website
Protocol |
Ports |
Source |
Destination |
TCP |
80, 443 |
All Zoom Clients |
*.zoom.us *.cloudfront.net |
Additional IP ranges
Additional IP ranges to be allowed can also be found in the following lists:
Proxy server
We support https/SSL proxy server via port 443 for Zoom traffic.
Note: This does not apply to the Zoom Phone service.
Zoom automatically detects your proxy settings. In some instances, you may be prompted to enter the proxy username/password.
Note: We recommend allowing zoom.us and *.zoom.us from proxy or SSL inspection.
Firewall rules for other Zoom services