**End of support notice**: On February 20, 2026, AWS will end support for the Amazon Chime service. After February 20, 2026, you will no longer be able to access the Amazon Chime console or Amazon Chime application resources. For more information, visit the [blog post](https://aws.amazon.com/blogs/messaging-and-targeting/update-on-support-for-amazon-chime/). **Note:** This does not impact the availability of the [Amazon Chime SDK service](https://aws.amazon.com/chime/chime-sdk/).

# Network configuration and bandwidth requirements


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, you must put `*.amazonaws.com` on an allow list, or put [AWS IP address ranges](https://docs.aws.amazon.com/general/latest/gr/aws-ip-ranges.html) in the *AWS General Reference* for the following services:
+ Amazon EC2
+ Amazon CloudFront
+ Amazon Route 53

Expand the following sections for more information about destinations, ports, and bandwidth.

## Required destinations and ports


The following destinations and ports are required to run Amazon Chime.


| Destination | Ports | 
| --- | --- | 
|  chime.aws  |  TCP/443  | 
|  \$1.chime.aws  |  TCP/443  | 
|  \$1.amazonaws.com  |  TCP/443  | 
|  99.77.128.0/18  |  TCP/443  | 

## Meeting and telephony port


Amazon Chime uses the following destination and port for meetings and Amazon Chime Business Calling.


| Destination | Port | 
| --- | --- | 
|  99.77.128.0/18  |  UDP/3478  | 

## H.323 room systems


Amazon Chime uses the following destinations and ports for H.323 in-room video systems.


| Destination | Ports | 
| --- | --- | 
|  13.248.147.139  |  TCP/1720  | 
|  76.223.18.152  |  TCP/1720  | 
|  99.77.128.0/18 34.212.95.128/25 34.223.21.0/25 52.55.62.128/25 52.55.63.0/25  |  TCP/5100:6200 UDP/5100:6200  | 

## Session Initiation Protocol (SIP) room systems


The following destinations and ports are recommended when running Amazon Chime for SIP in-room video systems in your environment.


| AWS Region | Destination | Ports | 
| --- | --- | --- | 
|  Global (nearest Region)  |  99.77.128.0/18 34.212.95.128/25 34.223.21.0/25 52.55.62.128/25 52.55.63.0/25   |  UDP/10000:60000  | 
|  Global  |  meet.chime.in 13.248.147.139 76.223.18.152  |  TCP/5061  | 
|  US East (N. Virginia)  |  meet.ue1.chime.in  |  TCP/5061  | 
|  US West (Oregon)  |  meet.uw2.chime.in  |  TCP/5061  | 
|  Asia Pacific (Singapore)  |  meet.as1.chime.in  |  TCP/5061  | 
|  Asia Pacific (Sydney)  |  meet.as2.chime.in  |  TCP/5061  | 
|  Asia Pacific (Tokyo)  |  meet.an1.chime.in  |  TCP/5061  | 
|  Europe (Ireland)  |  meet.ew1.chime.in  |  TCP/5061  | 
|  South America (São Paulo)  |  meet.se1.chime.in  |  TCP/5061  | 

## Bandwidth requirements


Amazon Chime has the following bandwidth requirements for audio, video, and screen sharing:
+ Audio 
  + 1:1 call: 54 kbps up and down
  + Large call: no more than 32 kbps extra down for 50 callers
+ Video
  + 1:1 call: 650 kbps up and down
  + HD mode: 1400 kbps up and down
  + 3–4 people: 450 kbps up and (N-1)\$1400 kbps down
  + 5–16 people: 184 kbps up and (N-1)\$1134 kbps down
  + Up and down bandwidth adapts lower based on network conditions
+ Screen sharing
  + 1.2 mbps up (when presenting) and down (when viewing) for high quality. This adapts as low as 320 kbps based on network conditions.
  + Remote control: 800 kbps fixed