Use DescribeAccountAttributes with a CLI

To describe all the attributes for your Amazon account

This example describes the attributes for your Amazon account.

Command:

aws ec2 describe-account-attributes

Output:

{
    "AccountAttributes": [
        {
            "AttributeName": "vpc-max-security-groups-per-interface",
            "AttributeValues": [
                {
                    "AttributeValue": "5"
                }
            ]
        },
        {
            "AttributeName": "max-instances",
            "AttributeValues": [
                {
                    "AttributeValue": "20"
                }
            ]
        },
        {
            "AttributeName": "supported-platforms",
            "AttributeValues": [
                {
                    "AttributeValue": "EC2"
                },
                {
                    "AttributeValue": "VPC"
                }
            ]
        },
        {
            "AttributeName": "default-vpc",
            "AttributeValues": [
                {
                    "AttributeValue": "none"
                }
            ]
        },
        {
            "AttributeName": "max-elastic-ips",
            "AttributeValues": [
                {
                    "AttributeValue": "5"
                }
            ]
        },
        {
            "AttributeName": "vpc-max-elastic-ips",
            "AttributeValues": [
                {
                    "AttributeValue": "5"
                }
            ]
        }
    ]
}

To describe a single attribute for your Amazon account

This example describes the supported-platforms attribute for your Amazon account.

Command:

aws ec2 describe-account-attributes --attribute-names supported-platforms

Output:

{
    "AccountAttributes": [
        {
            "AttributeName": "supported-platforms",
            "AttributeValues": [
                {
                    "AttributeValue": "EC2"
                },
                {
                    "AttributeValue": "VPC"
                }
            ]
        }
    ]
}

Example 1: This example describes whether you can launch instances into EC2-Classic and EC2-VPC in the region, or only into EC2-VPC.

(Get-EC2AccountAttribute -AttributeName supported-platforms).AttributeValues

Output:

AttributeValue
--------------
EC2
VPC

Example 2: This example describes your default VPC, or is 'none' if you do not have a default VPC in the region.

(Get-EC2AccountAttribute -AttributeName default-vpc).AttributeValues

Output:

AttributeValue
--------------
vpc-12345678

Example 3: This example describes the maximum number of On-Demand instances that you can run.

(Get-EC2AccountAttribute -AttributeName max-instances).AttributeValues

Output:

AttributeValue
--------------
20

Example 1: This example describes whether you can launch instances into EC2-Classic and EC2-VPC in the region, or only into EC2-VPC.

(Get-EC2AccountAttribute -AttributeName supported-platforms).AttributeValues

Output:

AttributeValue
--------------
EC2
VPC

Example 2: This example describes your default VPC, or is 'none' if you do not have a default VPC in the region.

(Get-EC2AccountAttribute -AttributeName default-vpc).AttributeValues

Output:

AttributeValue
--------------
vpc-12345678

Example 3: This example describes the maximum number of On-Demand instances that you can run.

(Get-EC2AccountAttribute -AttributeName max-instances).AttributeValues

Output:

AttributeValue
--------------
20