| Domain Prefix |
|---|
| npn0... |
| npn1... |
| npn2... |
| npn3... |
| npn4... |
| npn5... |
| npn6... |
| npn7... |
| npn8... |
| npn9... |
| npna... |
| npnb... |
| npnc... |
| npnd... |
| npne... |
| npnf... |
| npng... |
| npnh... |
| npni... |
| Domain Prefix |
|---|
| npnj... |
| npnk... |
| npnl... |
| npnm... |
| npnn... |
| npno... |
| npnp... |
| npnq... |
| npnr... |
| npns... |
| npnt... |
| npnu... |
| npnv... |
| npnw... |
| npnx... |
| npny... |
| npnz... |
| npn-... |