0x20 SS7 Destination/Route

Byte | AIB Field Description
--- | ---
2 | Address Element: 0x20
3 | Data Length: 0x05
4 | Data[0] Stack ID
5, 6 | Data[1, 2] Destination ID 0x0000 - 0x007F
7, 8 | Data[3, 4] Route ID 0x0000 - 0x01FF

See Address Information Block.
The information in an AIB that follows the header, down to the data field. An AIB can have one or more Address Elements. AEs correspond to Span, Channel, and SS7 Link.