Zoom network firewall or proxy server settings

Publisher

Zoom Communications

URL

https://support.zoom.com/hc/en/article?id=zm_kb&sysparm_article=KB0060548

Published

unknown

Updated

unknown

Accessed

2026-09-25

HTTP status

200

License

Zoom website terms; all rights reserved; no-redistribution; short excerpts and locators only

Source notes citing this source

• Zoom's Zoom Phone firewall rules include IPv6 destination ranges (for example 2620:123:2000::/40 and 2407:c280::/32) alongside IPv4 ranges such as 144.195.0.0/16. in context
• Zoom's firewall rules for Zoom Phone list outbound TCP 390 from Zoom clients for company directory search. in context
• Zoom's firewall rules for Zoom Phone require outbound TCP 443 from all Zoom clients and the user's web browser to Zoom's published IPv4 and IPv6 ranges. in context
• Zoom's firewall rules for Zoom Phone list TCP 5091 from all Zoom clients to specified Zoom IP blocks. in context
• Zoom's firewall rules for Zoom Phone list UDP 3478 from all Zoom clients for TURN (Traversal Using Relays around NAT) support. in context
• Zoom's firewall rules for Zoom Phone list UDP destination ports 20000-64000 from all Zoom clients to designated Zoom IP ranges. in context

Cite this source record

APA

WarmTransfer. (2026, September 25). Zoom network firewall or proxy server settings. WarmTransfer. https://warmtransfer.net/knowledge/sources/zoom-kb0060548-network-firewall-proxy

BibTeX

@misc{warmtransfer-zoom-kb0060548-network-firewall-proxy,
  title  = {Zoom network firewall or proxy server settings},
  author = {{WarmTransfer}},
  year   = {2026},
  url    = {https://warmtransfer.net/knowledge/sources/zoom-kb0060548-network-firewall-proxy},
  note   = {Zoom Communications, accessed 2026-09-25}
}