AWS Enterprise Account - IAM Settings

Question

When I login to my enterprise aws account , I see something like the below. Does this mean that there is a single account id and I am created as a user within some group within the account? I see "assumed-role" mentioned in account name , wasn't quite sure what it means.

Account Id: XXXXXXXXXXXXXX 
Account Name: assumed-role/XXXXX_Dev_Developer/<employee id>

Answer 1

Yes, you are a single IAM user under the enterprise account. The assumed role controls what you can do within the scope of that account, for instance restricted read from an S3 bucket or write into one.

These roles are assigned by your account administrator, typically someone in your organization.