Important Notice: Please update all of your Zoom applications to version 5.0 or higher. After May 30, 2020, all Zoom applications on older versions will receive a forced upgrade when trying to join meetings as GCM Encryption will be fully enabled across the Zoom platform. Learn more on how to update your Zoom application or update now.

Note: As our world comes together to slow the spread of COVID-19 pandemic, the Zoom Support Center has continued to operate 24x7 globally to support you. Please see the updated Support Guidelines during these unprecedented times.



Network Firewall or Proxy Server Settings for Zoom Follow

Network Firewall or Web Security Gateway

If your app stays in a "connecting" mode or  timed out due to "Network error, please try again" or "Can't connect to our service, please check your network connection and try again"  - 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

To configure your network firewall, please see the following table: 

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
13.114.106.166/32
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
52.197.97.21/32
52.202.62.192/26
52.215.168.0/25
64.69.74.0/24
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
103.122.166.0/23
109.94.160.0/22
109.244.18.0/25
109.244.19.0/24
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
140.238.128.0/24
147.124.96.0/19
149.137.0.0/17
152.67.20.0/24
152.67.118.0/24
152.67.180.0/24
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
168.138.16.0/24
168.138.48.0/24
168.138.72.0/24
168.138.244.0/24
173.231.80.0/20
192.204.12.0/22
193.122.32.0/22
193.123.0.0/19
193.123.40.0/22
193.123.128.0/19
198.251.128.0/17
202.177.207.128/27
202.177.213.96/27
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
210.57.55.0/24
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
13.114.106.166/32
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
52.197.97.21/32
52.202.62.192/26
52.215.168.0/25
64.69.74.0/24
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
103.122.166.0/23
109.94.160.0/22
109.244.18.0/25
109.244.19.0/24
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
140.238.128.0/24
147.124.96.0/19
149.137.0.0/17
152.67.20.0/24
152.67.118.0/24
152.67.180.0/24
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
168.138.16.0/24
168.138.48.0/24
168.138.72.0/24
168.138.244.0/24
173.231.80.0/20
192.204.12.0/22
193.122.32.0/22
193.123.0.0/19
193.123.40.0/22
193.123.128.0/19
198.251.128.0/17
202.177.207.128/27
202.177.213.96/27
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
210.57.55.0/24
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

 

Connection Type: Zoom Phone

Protocol Ports Source Destination
TCP 5090, 5091 All Zoom Clients 8.5.128.0/24
64.211.144.0/24
103.122.166.0/23
109.94.160.0/22
120.29.148.0/24
147.124.96.0/19
192.204.12.0/22
209.9.215.0/24
213.19.153.0/24
UDP 5090 All Zoom Clients 8.5.128.0/24
64.211.144.0/24
103.122.166.0/23
109.94.160.0/22
120.29.148.0/24
147.124.96.0/19
192.204.12.0/22
209.9.215.0/24
213.19.153.0/24
UDP 20000-64000 All Zoom Clients 64.211.144.0/24
103.122.166.0/23
147.124.96.0/19
162.12.232.0/22
207.226.132.0/24
209.9.211.0/24
213.19.144.0/24
213.244.140.0/24

 

Connection Type: Zoom Website

Protocol Ports Source Destination
TCP 80, 443 All Zoom Clients *.zoom.us
*.cloudfront.net


Proxy Server 

We support https/SSL proxy server via port 443.

Zoom automatically detects your proxy settings. In some instances, you may be prompted to enter the proxy username/password.

Note: We recommend whitelisting zoom.us and *.zoom.us from proxy or SSL inspection. 

Note: IP ranges to be whitelisted can also be found at the following:

For Meeting Connector and Others

Please submit a ticket if you have further questions.