**To describe Reserved Instances modifications** This example command describes all the Reserved Instances modification requests that have been submitted for your account. Command:: aws ec2 describe-reserved-instances-modifications Output:: { "ReservedInstancesModifications": [ { "Status": "fulfilled", "ModificationResults": [ { "ReservedInstancesId": "93bbbca2-62f1-4d9d-b225-16bada29e6c7", "TargetConfiguration": { "AvailabilityZone": "us-east-1b", "InstanceType": "m1.large", "InstanceCount": 3 } }, { "ReservedInstancesId": "1ba8e2e3-aabb-46c3-bcf5-3fe2fda922e6", "TargetConfiguration": { "AvailabilityZone": "us-east-1d", "InstanceType": "m1.xlarge", "InstanceCount": 1 } } ], "EffectiveDate": "2015-08-12T17:00:00.000Z", "CreateDate": "2015-08-12T17:52:52.630Z", "UpdateDate": "2015-08-12T18:08:06.698Z", "ClientToken": "c9adb218-3222-4889-8216-0cf0e52dc37e: "ReservedInstancesModificationId": "rimod-d3ed4335-b1d3-4de6-ab31-0f13aaf46687", "ReservedInstancesIds": [ { "ReservedInstancesId": "b847fa93-e282-4f55-b59a-1342f5bd7c02" } ] } ] }