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Hosts, Ports and Protocols needed for Amazon Chime services

Last updated: February 21, 2020

Amazon Chime requires the destinations and ports described in this topic to support various services. If inbound or outbound traffic is blocked, this blockage might affect the ability to use various services, including audio, video, screen sharing, or chat.

Amazon Chime uses Amazon Elastic Compute Cloud (Amazon EC2) and other AWS services on port TCP/443. If your firewall blocks port TCP/443, please put * on an allow list, or the AWS IP Address Ranges from the AWS General Reference for the following services:

  • Amazon EC2
  • Amazon CloudFront
  • Amazon Route 53

Amazon Chime uses TCP/443 for https and WebSocket communication to hosts with DNS suffixes:

NOTE: If you are using a proxy, ensure that it proxies WebSockets, Https, and SSL inspection.

The following are required if you are using the highlighted features:

  • Amazon Chime Meetings, Chat, and Business Calling uses TCP/443 UDP/3478
  • SIP and H.323 room systems use or, and UDP/10000-60000
  • H.323 room systems also use TCP/10000-60000

Check if your firewall rules require updating with the Amazon Chime Readiness Checker.

Learn More

For more information, see:

amazon chime 5firewallportsnetworkprotocols
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View the Amazon Chime User, Administration Guide and API Reference on the AWS Documentation site.


Find more information about the Amazon Chime solution, pricing, customer references, getting started, and other resources.



BethChimeAWS contributed to this article JohnD-aws contributed to this article AWSRyanMc contributed to this article Jason-AWS contributed to this article