| Code | Name | Region |
|---|---|---|
| RUKSL | Kislaya Guba | |
| RUKS2 | Klimovsk | KO |
| RURZC | Klimovsk | MOS |
| RUKLI | Klin | |
| RUKLN | Klin | MOS |
| RUKLR | Klinsky Rayon | MOS |
| RUKZA | Klyaz'ma | MOS |
| RUKDK | Kodinsk | KYA |
| RUKGP | Kogalym | |
| RUKLB | Kazinka | RYA |
| RUKKA | Kaznacheevka | BEL |
| RUKEM | Kem | |
| RUKEJ | Kemerovo | KEM |
| RUKER | Keret | |
| RUKHV | Khabarovsk | |
| RUKHM | Khanty-mansiysk | |
| RUKSA | Kharasavey | NEN |
| RUKHA | Kharovsk | VLG |
| RUKHS | Khasan | |
| RUKTY | Khatyrka | CHU |
| RUKKI | Khimki | MOS |
| RUKHO | Kholmsk | SAK |
| RUHRA | Khropunovo | IVA |
| RUKNY | Khvalynsk | SAR |
| RUHYR | Khyrov | |
| RUKDN | Kildin | |
| RUKIM | Kimry | TVE |
| RUKIN | Kineshma | |
| RUKGS | Kingisepp | |
| RUKGD | Kaliningrad | |
| RUKLF | Kaluga | |
| RUKZY | Kaluzhskaya | KDA |
| RUKLY | Kalyazin | TVE |
| RUKSH | Kamensk-shahtinskiy | |
| RUKUY | Kamensk-ural'skiy | SVE |
| RUKMO | Kameshkovo | VLA |
| RUKMU | Kamskoye Ustye | |
| RUKAM | Kamyshin | VGG |
| RUKK3 | Kamyshta | KYA |
| RUKBR | Kanash | CU |
| RUKAN | Kandalaksha | |
| RUKAK | Karabulak | IN |
| RUKAR | Karpinsk | SVE |
| RUKHN | Kashin | |
| RUKAS | Kashira | |
| RUKSI | Kasimov | |
| RUKAV | Kavalerovo | |
| RUKZP | Kavkaz | KDA |
| RUKZN | Kazan | TA |
| RUIOY | Ikryanoye | AST |