**To describe cache subnet groups** The following ``describe-cache-subnet-groups`` example returns a list of subnet groups. :: aws elasticache describe-cache-subnet-groups Output:: { "CacheSubnetGroups": [ { "CacheSubnetGroupName": "default", "CacheSubnetGroupDescription": "Default CacheSubnetGroup", "VpcId": "vpc-a3e97cdb", "Subnets": [ { "SubnetIdentifier": "subnet-8d4bacf5", "SubnetAvailabilityZone": { "Name": "us-west-2b" } }, { "SubnetIdentifier": "subnet-dde21380", "SubnetAvailabilityZone": { "Name": "us-west-2c" } }, { "SubnetIdentifier": "subnet-6485ec4f", "SubnetAvailabilityZone": { "Name": "us-west-2d" } }, { "SubnetIdentifier": "subnet-b4ebebff", "SubnetAvailabilityZone": { "Name": "us-west-2a" } } ] }, { "CacheSubnetGroupName": "kxkxk", "CacheSubnetGroupDescription": "mygroup", "VpcId": "vpc-a3e97cdb", "Subnets": [ { "SubnetIdentifier": "subnet-b4ebebff", "SubnetAvailabilityZone": { "Name": "us-west-2a" } } ] }, { "CacheSubnetGroupName": "test", "CacheSubnetGroupDescription": "test", "VpcId": "vpc-a3e97cdb", "Subnets": [ { "SubnetIdentifier": "subnet-b4ebebff", "SubnetAvailabilityZone": { "Name": "us-west-2a" } } ] } ] } For more information, see `Subnets and Subnet Groups <https://docs.aws.amazon.com/AmazonElastiCache/latest/red-ug/SubnetGroups.html>`__ in the *Elasticache User Guide* or `Subnets and Subnet Groups <https://docs.aws.amazon.com/AmazonElastiCache/latest/mem-ug/SubnetGroups.html>`__ in the *ElastiCache for Memcached User Guide*.