Starting today, you can configure your NAT Gateway to support up to 440,000 concurrent connections to a unique destination by adding multiple IP addresses to same NAT Gateway. A NAT Gateway enables instances in a private subnet to connect to services outside the subnet using the IP address associated with the NAT Gateway. Prior to this launch, you could associate one IP address to your NAT Gateway
![Amazon increases NAT Gateway’s capacity to support concurrent connections to a unique destination](https://cdn-ak-scissors.b.st-hatena.com/image/square/c4f530e16dfb308a48108c71972db725de90d0d5/height=288;version=1;width=512/https%3A%2F%2Fa0.awsstatic.com%2Flibra-css%2Fimages%2Flogos%2Faws_logo_smile_1200x630.png)