Request
| Index Word | Description | 
| 0 | 
| Header | 0x00170084 | Cmd | 0x0017 | Param | 2 | Xlat | 4 |  | 
| 1 | Input principal ID buffer size (count * 4, max total size 0x800) | 
| 2 | u8, unknown (see description) | 
| 3 | Descriptor for copying 1 handle | 
| 4 | Completion event handle | 
| 5 | Descriptor for static buffer (id 0) | 
| 6 | Input principal ID buffer pointer (count * 4, max total size 0x800) | 
Response
| Index Word | Description | 
| 0 | 
| Header | 0x00170040 | Cmd | 0x0017 | Param | 1 | Xlat | 0 |  | 
| 1 | Result code | 
Description
Requests account IDs (Nintendo Network ID usernames) for the given list of principal IDs.
If the u8, unknown parameter is non-zero, error 0xE0A14CC8 is returned.