IAM ID Identifiers

Source

Prefix Entity Type
ABIA AWS STS service bearer token
ACCA Context-specific credential
AGPA Group
AIDA IAM user
AIPA Amazon EC2 instance profile
AKIA Access key
ANPA Managed policy
ANVA Version in a managed policy
APKA Public key
AROA Role
ASCA Certificate
ASIA Temporary (AWS STS) keys