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 *.amazonaws.com 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:
If you are using a proxy, ensure that it proxies WebSockets as well as Https.
The following are required if you are using the highlighted features:
- Amazon Chime Meetings, Chat, and Business Calling uses 220.127.116.11/18 TCP/443 UDP/3478
- SIP and H.323 room systems use 18.104.22.168 or 22.214.171.124, 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.
For more information, see: