This area sits above the 2GB line known as the Bar.

Private Area
64-bit Addressing

All the orange areas constitute the Extended Private Area, which which extends to the 2GB line.

Extended Local System Queue Area (ELSQA)
31-bit Addressing

User Area
31-bit
Addressing

All the pink areas constitute the Extended Common Area, which sits above the 16MB line.

Extended
Common Storage Area (ECSA)
31-bit Addressing

Extended Link Pack Area (LPA)
31-bit Addressing

Extended
System Queue Area (SQA)
31-bit Addressing

Extended Control Program (Nucleus)

All the cyan (light blue) areas constitute the Common Area, which sits below the 16MB line.

Control Program (Nucleus)

System Queue Area (SQA)
24-bit Addressing

Link Pack Area (LPA)
24-bit Addressing

Common Storage Area (CSA)
24-bit Addressing

Local System Queue Area (LSQA)
24-bit Addressing

These yellow areas constitute the Private Area.

User Area
24-bit
Addressing

Address range 4 - 20K

System Region

Part of the Common Area.
Address range 0 - 4K

Prefixed Storage Area (PSA)