Amazon EC2 service quotas
Amazon EC2 provides different resources that you can use. These resources include images, instances, volumes, and snapshots. When you create your Amazon Web Services account, we set default quotas (also referred to as limits) on these resources on a per-Region basis. For example, there is a maximum number of instances that you can launch in a Region. So if you were to launch an instance in the US West (Oregon) Region, for example, the request must not cause your usage to exceed your maximum number of instances in that Region.
The Service Quotas console is a central location where you can view and manage your quotas for Amazon services, and request a quota increase for many of the resources that you use. Use the quota information that we provide to manage your Amazon infrastructure. Plan to request any quota increases in advance of the time that you'll need them.
View your current quotas
You can view your quotas for each Region using the Service Quotas console.
To view your current quotas using the Service Quotas console
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Open the Service Quotas console at https://console.amazonaws.cn/servicequotas/home/services/ec2/quotas/
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From the navigation bar (at the top of the screen), select a Region.
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Use the filter field to filter the list by resource name. For example, enter
On-Demandto locate the quotas for On-Demand Instances. -
To view more information, choose the quota name to open the details page for the quota.
Request an increase
You can request a quota increase for each Region.
To request an increase using the Service Quotas console
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Open the Service Quotas console at https://console.amazonaws.cn/servicequotas/home/services/ec2/quotas/
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From the navigation bar (at the top of the screen), select a Region.
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Use the filter field to filter the list by resource name. For example, enter
On-Demandto locate the quotas for On-Demand Instances. -
If the quota is adjustable, choose the quota and then choose Request quota increase.
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For Change quota value, enter the new quota value.
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Choose Request.
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To view any pending or recently resolved requests in the console, choose Dashboard from the navigation pane. For pending requests, choose the status of the request to open the request receipt. The initial status of a request is Pending. After the status changes to Quota requested, you'll see the case number with Amazon Web Services Support. Choose the case number to open the ticket for your request.
For more information, including how to use the Amazon CLI or SDKs to request a quota increase, see Requesting a quota increase in the Service Quotas User Guide.
Restriction on email sent using port 25
On all instances, Amazon EC2 restricts outbound traffic to public IP addresses over port 25
by default. You can request that this restriction be removed. For more information, see
How do I remove
the restriction on port 25 from my Amazon EC2 instance or Lambda function?