| Abbreviation | Definition |
|---|---|
| NCAI | Aitutaki, Cook Islands |
| NCAT | Atiu Island, Cook Islands |
| NCE | Nice, France |
| NCG | Nueva Casas Grandes, Mexico |
| NCGO | Mangaia, Cook Islands |
| NCH | Nachingwea, Tanzania |
| NCI | Necocli, Colombia |
| NCL | Newcastle, England, UK |
| NCMN | Manuae, Cook Islands |
| NCMR | Mitiaro, Cook Islands |
| NCMX | Mauke, Cook Islands |
| NCN | New Chenega, Alaska USA |
| NCP | Luzon Island, Philippines |
| NCPY | Penrhyn Island, Cook Islands |
| NCQ | Marietta, Georgia USA |
| NCR | San Carlos, Nicaragua |
| NCRG | Avarua Rarotonga International, Cook Islands |
| NCRK | Rakahanga, Cook Islands |
| NCS | Nassau, Cook Islands |
| NCT | Nicoya, Costa Rica |