| Code | Name | Region |
|---|---|---|
| JPKTD | Kitadaito Apt | 47 |
| JPKTN | Kitakami | 3 |
| JPKQT | Kitakata, Fukushima | 7 |
| JPKTL | Kitakijima | 33 |
| JPKKJ | Kitakyushu | 40 |
| JPKIH | Kitami | 1 |
| JPKTA | Kitanada | 38 |
| JPGTK | Kitanagoya | 23 |
| JPKJT | Kitaura, Akita | 5 |
| JPKIR | Kitaura, Ehime | 38 |
| JPKTR | Kitaura, Kagawa | 37 |
| JPKIT | Kitaura, Miyazaki | 45 |
| JPKSF | Kitsuki | 44 |
| JPKYS | Kiyose, Tokyo | 13 |
| JPKYW | Kiyosu Aichi | 23 |
| JPKZG | Kizugawa | 26 |
| JPKBT | Kobato | 42 |
| JPUKB | Kobe | 28 |
| JPZAI | Kobe, Kyota | 26 |
| JPKJO | Kinjo | 23 |
| JPKNK | Kinkasan | 4 |
| JPKNX | Kinnakagusuku | 47 |
| JPKNE | Kinoe | 34 |
| JPKOW | Kinokawa | 30 |
| JPKNT | Kinomoto | 24 |
| JPKNU | Kinuura | 23 |
| JPKIN | Kinwan | 47 |
| JPKJR | Kiriishi | 46 |
| JPKRT | Kiritappu | 1 |
| JPKYU | Kiryu | 10 |
| JPKST | Kisakata | 5 |
| JPKNJ | Kisane | 32 |
| JPKZU | Kisarazu | 12 |
| JPKIW | Kisawa | 37 |
| JPKSH | Kishiku | 42 |
| JPKSR | Kishira | 46 |
| JPKDA | Kishiwada | 27 |
| JPKIO | Kiso, Nagano | 20 |
| JPKTX | Kita/kitadaito | 47 |
| JPKEC | Kechi | 42 |
| JPKEG | Kegoya | 34 |
| JPKEJ | Keraji | 46 |
| JPKJP | Kerama | 47 |
| JPKEM | Keruma | 47 |
| JPKSN | Kesennuma | 4 |
| JPKIA | Kiami | 32 |
| JPKIB | Kibe | 44 |
| JPKGJ | Kigasajima | 37 |
| JPKHR | Kihara | 34 |
| JPKII | Kiire | 46 |