Nagaland consists of 10 areas. In order to find the STD codes of Nagaland based cities, please click on any of the names given in the followings list.
| Area | STD Code | State |
| STD Code of Dimapur | 03862 | Nagaland |
| STD Code of Jalukie | 03839 | Nagaland |
| STD Code of Kiphire | 03863 | Nagaland |
| STD Code of Kohima | 0370 | Nagaland |
| STD Code of Mokokchung | 0369 | Nagaland |
| STD Code of Mon | 03869 | Nagaland |
| STD Code of Phek | 03865 | Nagaland |
| STD Code of Tuengsang | 03861 | Nagaland |
| STD Code of Wokha | 03860 | Nagaland |
| STD Code of Zuenheboto | 03867 | Nagaland |
You can also view the complete list of pin code of Nagaland post offices.