Hierarchy classification:

1. top of the aat hierarchies
2. Associated Concepts Facet
3. Associated Concepts (hierarchy name)
4. communications concepts
5. addresses (communications concepts)

Additional parents:

1. top of the aat hierarchies
2. Objects Facet
3. Visual and Verbal Communication
4. Information Forms
5. information forms
6. information artifacts
7. information artifacts by function
8. identifying artifacts
9. identification numbers and codes
10. identification numbers

Anotations

Scope note:

Strings of characters that uniquely identify a location on the internet or other network to which email can be sent; the email address is typically a point of contact for a particular individual or organization.