| N | |
| NAMIBIA | 00 264 |
| NAUFIU | 00 674 |
| NEPAL | 00 977 |
| NETHERLANDS | 00 31 |
| NETHERLANDS ANTILLES | 00 599 |
| NEVIS | (Please see St. Kitts and Nevis) |
| NEW CALEDONIA | 00 687 |
| NEW ZEALAND | 00 64 |
| NICARAGUA | 00 505 |
| NIGER | 00 227 |
| NIGERIA | 00 227 |
| NIUE | 00 683 |
| NORFOLK ISLAND | 00 6 72 |
| NORTH KOREA | 00 850 |
| NORTHERN MARIANAS | 00 670 |
| NORWAY | 00 47 |