Zoom network firewall or proxy server settings
On
Zoom Status, Zoom announces scheduled maintenance when IP address updates are planned. Customers can view the relevant posts on Zoom Status to check which IP address ranges were modified and subscribe via email or SMS to get a notification for IP range updates and other important Zoom updates. This article only includes current IP address ranges.
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. The following rules should be applied to outbound traffic. Zoom will communicate to the destination port received when the client makes its connection. The firewall should be configured to allow these return connections.
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 3.25.41.128/25 3.80.20.128/25 3.104.34.128/25 3.120.121.0/25 3.127.194.128/25 3.208.72.0/25 3.235.71.128/25 3.235.72.128/25 3.235.73.0/25 3.235.82.0/23 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 15.220.80.0/24 15.220.81.0/25 16.63.29.0/24 18.254.23.128/25 18.254.61.0/25 20.203.158.80/28 20.203.190.192/26 50.239.202.0/23 50.239.204.0/24 52.61.100.128/25 52.202.62.192/26 64.125.62.0/24 64.211.144.0/24 64.224.32.0/19 65.39.152.0/24 69.174.57.0/24 69.174.108.0/22 99.79.20.0/25 101.36.167.0/24 101.36.170.0/23 103.122.166.0/23 111.33.115.0/25 111.33.181.0/25 115.110.154.192/26 115.114.56.192/26 115.114.115.0/26 115.114.131.0/26 120.29.148.0/24 121.244.146.0/27 134.224.0.0/16 144.195.0.0/16 147.124.96.0/19 149.137.0.0/17 156.45.0.0/17 159.124.0.0/16 160.1.56.128/25 161.199.136.0/22 162.12.232.0/22 162.255.36.0/22 165.254.88.0/23 166.108.64.0/18 170.114.0.0/16 173.231.80.0/20 192.204.12.0/22 198.251.128.0/17 202.177.207.128/27 203.200.219.128/27 204.80.104.0/21 204.141.28.0/22 206.247.0.0/16 207.226.132.0/24 209.9.211.0/24 209.9.215.0/24 213.19.144.0/24 213.19.153.0/24 213.244.140.0/24 221.122.63.0/24 221.122.64.0/24 221.122.88.64/27 221.122.88.128/25 221.122.89.128/25 221.123.139.192/27
IPv6: 2407:30C0::/32 2600:9000:2600::/48 2620:123:2000::/40
|
UDP |
3478, 3479, 8801 - 8810
| All Zoom clients |
IPv4:
3.7.35.0/25 3.21.137.128/25 3.25.41.128/25 3.80.20.128/25 3.104.34.128/25 3.120.121.0/25 3.127.194.128/25 3.208.72.0/25 3.235.71.128/25 3.235.72.128/25 3.235.73.0/25 3.235.82.0/23 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 15.220.80.0/24 15.220.81.0/25 16.63.29.0/24 18.254.23.128/25 18.254.61.0/25 20.203.158.80/28 20.203.190.192/26 50.239.202.0/23 50.239.204.0/24 52.61.100.128/25 52.202.62.192/26 64.125.62.0/24 64.211.144.0/24 64.224.32.0/19 65.39.152.0/24 69.174.57.0/24 69.174.108.0/22 99.79.20.0/25 101.36.167.0/24 101.36.170.0/23 103.122.166.0/23 111.33.115.0/25 111.33.181.0/25 115.110.154.192/26 115.114.56.192/26 115.114.115.0/26 115.114.131.0/26 120.29.148.0/24 121.244.146.0/27 134.224.0.0/16 144.195.0.0/16 147.124.96.0/19 149.137.0.0/17 156.45.0.0/17 159.124.0.0/16 160.1.56.128/25 161.199.136.0/22 162.12.232.0/22 162.255.36.0/22 165.254.88.0/23 166.108.64.0/18 170.114.0.0/16 173.231.80.0/20 192.204.12.0/22 198.251.128.0/17 202.177.207.128/27 203.200.219.128/27 204.80.104.0/21 204.141.28.0/22 206.247.0.0/16 207.226.132.0/24 209.9.211.0/24 209.9.215.0/24 213.19.144.0/24 213.19.153.0/24 213.244.140.0/24 221.122.63.0/24 221.122.64.0/24 221.122.88.64/27 221.122.88.128/25 221.122.89.128/25 221.123.139.192/27
IPv6: 2407:30C0::/32 2600:9000:2600::/48 2620:123:2000::/40
|
Firewall rules for Zoom Phone
Note:
Protocol | Ports | Source | Destination |
TCP | 5091 | All Zoom clients |
3.72.154.128/25 3.80.20.128/25 3.104.34.128/25 3.120.121.0/25 3.235.96.0/23 8.5.128.0/24 18.159.143.0/25 52.59.151.0/25 64.211.144.0/24 64.224.32.0/19 65.39.152.0/24 69.174.57.0/24 99.79.20.0/25 101.36.167.0/24 103.122.166.0/23 120.29.148.0/24 134.224.0.0/16 144.195.0.0/16 147.124.96.0/19 149.137.0.0/17 156.45.0.0/17 159.124.0.0/16 162.12.232.0/22 170.114.0.0/16 173.231.92.0/24 173.231.94.0/24 192.204.12.0/22 206.247.0.0/16 209.9.211.0/24 209.9.215.0/24 213.19.144.0/24 213.19.153.0/24 213.244.140.0/24 221.122.63.0/24
IPv6: 2620:123:2000::/40
|
TCP | 390 (see note) | All Zoom clients |
3.21.137.128/25 3.235.96.0/23
|
UDP | 20000-64000 | All Zoom Clients |
64.211.144.0/24 64.224.32.0/19 65.39.152.0/24 69.174.57.0/24 101.36.167.0/24 103.122.166.0/23 115.117.119.96/27 121.244.146.0/27 121.244.203.192/27 144.195.0.0/16 147.124.96.0/19 149.137.0.0/17 156.45.0.0/17 159.124.0.0/16 162.12.232.0/22 170.114.0.0/16 173.231.92.0/24 173.231.94.0/24 203.200.219.128/27 206.247.0.0/16 207.226.132.0/24 209.9.211.0/24 213.19.144.0/24 213.244.140.0/24 221.122.63.0/24
IPv6: 2620:123:2000::/40
|
Protocol | Ports | Source | Destination |
UDP | 20000-64000 | All Zoom Clients |
50.239.204.0/24 144.195.0.0/16 147.124.96.0/19 149.137.0.0/17 156.45.0.0/17 159.124.0.0/16 170.114.0.0/16 204.80.104.0/21 206.247.0.0/16
IPv6: 2620:123:2000::/40
|
TCP | 443 | All Zoom Clients, User's web browser |
3.21.137.128/25 3.235.96.0/23 50.239.204.0/24 103.122.166.0/23 134.224.0.0/16 144.195.0.0/16 147.124.96.0/19 149.137.0.0/17 156.45.0.0/17 159.124.0.0/16 170.114.0.0/16 204.141.28.0/22 206.247.0.0/16 207.226.132.0/24
|
TCP | 5091 | All Zoom Clients |
50.239.204.0/24 144.195.0.0/16 147.124.96.0/19 149.137.0.0/17 156.45.0.0/17 159.124.0.0/16 170.114.0.0/16 204.80.104.0/21 206.247.0.0/16
IPv6: 2620:123:2000::/40
|
TCP | 443 | 3.18.202.127 3.20.188.102 3.66.90.39 3.66.90.206 3.70.50.178 3.141.189.66 3.237.150.230 44.212.128.71 44.198.173.62 |
Specified endpoint from Network requests defined in Zoom Contact Center Flow Script widget
|
Firewall rules for Zoom website
Protocol | Ports | Source | Destination |
TCP | 80, 443 | All Zoom Clients User's web browser | *.zoom.us |
Firewall rules for Zoom Support and Community
Protocol | Ports | Source | Destination |
TCP | 80, 443 | User's web browser | *.zoom.us *.zoom.com |
Firewall rules for Zoom Apps created by Zoom
Protocol | Ports | Source | Destination |
TCP | 443 | All Zoom Clients User's web browser | *.zoomapp.cloud |
Firewall rules for certificate validation
The Zoom client 5.5.0 or later requires allowing the following URLs for certificate validation.
Protocol | Ports | Source |
Destination
|
HTTP | 80 | Zoom client | crl3.digicert.com crl4.digicert.com ocsp.digicert.com crl.entrust.net certificates.godaddy.com crl.godaddy.com ocsp.godaddy.com certificates.starfieldtech.com crl.starfieldtech.com ocsp.starfieldtech.com |
Zoom CDN
The Zoom CDN is used to optimize the delivery of files related to the Zoom platform such as customer meeting recordings, static web assets, Zoom clients, and Zoom Phone firmware downloads.
Protocol | Ports | Source |
Destination
|
HTTPS | 443 |
User's web browser Zoom Certified Hardware (Zoom Room hardware, Zoom Phone hardware, etc.)
|
IPv4: 52.84.151.0/24 170.114.45.0/24 170.114.46.0/24
IPv6: 2407:30c0:180::/48 2407:30c0:181::/48 2600:9000:2600::/48
|
Zoom Device Management (ZDM)
Zoom Device Management(ZDM) is a device management tool, that allows you to manage your Zoom Rooms, devices, and Zoom Clients without having to physically engage with each device. If your company network includes firewall or proxy servers, you will need to add this ZDM url to your allowed list of network domains to allow communication with the ZDM server:
https://zdmapi.zoom.us
IP ranges txt files
IP ranges to be allowed can also be downloaded in txt file format:
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