| Code | Name | Region |
|---|---|---|
| CNLAL | Laolong | GD |
| CNLXH | Laoxiahe | AH |
| CNLYM | Laoyemiao | XJ |
| CNLNG | Ledong | HI |
| CNLYN | Leiyang | HN |
| CNLLG | Leling | SD |
| CNLUU | Leliu | GD |
| CNLPI | Leping | GD |
| CNLES | Leshan | SC |
| CNLTP | Letianxi Pt | HB |
| CNLEZ | Lezhu | GD |
| CNLHA | Lhasa | XZ |
| CNKRY | Karamay | XJ |
| CNKSS | Kashi | XJ |
| CNKHG | Kashi Apt | XJ |
| CNKOL | Korla | XJ |
| CNKYG | Kuiyong | GD |
| CNKJP | Kunjirap | XJ |
| CNKNM | Kunming | YN |
| CNKMG | Kunming Wujiaba International Apt | YN |
| CNKUS | Kunshan | JS |
| CNKCA | Kuqa Apt | XJ |
| CNKUY | Kuytun Railway Station | XJ |
| CNLAA | Lai An | 11 |
| CNLBI | Laibin | GX |
| CNCSL | Laiwu | GD |
| CNLWS | Laiwu | SD |
| CNLIX | Laixi | 37 |
| CNLYD | Laiyang | SD |
| CNLZO | Laizhou Pt | SD |
| CNLFZ | Langfang | HE |
| CNLSN | Lanshan Pt | SD |
| CNJUQ | Jiuquan | GS |
| CNJUZ | Jiuzhen | FJ |
| CNJZU | Jiuzhou Pt | GD |
| CNXII | Jixi | |
| CNJIX | Jixian | TJ |
| CNJYA | Jiyuan | 46 |
| CNJRG | Jurong | JS |
| CNKFG | Kaifeng | HA |
| CNKAH | Kaihua | 33 |
| CNKAI | Kaikou | GZ |
| CNKJH | Kaili | FJ |
| CNKAP | Kaiping | GD |
| CNKPN | Kaiping | HE |
| CNKST | Kaishantun | JL |
| CNKIY | Kaiyun | 43 |
| CNKLS | Kalasu | XJ |
| CNKGT | Kangding | SC |
| CNKQI | Kangqiao | SN |