| Code | Name | Region |
|---|---|---|
| CNXYI | Xinying | HI |
| CNXNY | Xinyu | JX |
| CNXUN | Xinyuan | XJ |
| CNXZO | Xinzao | GD |
| CNXNZ | Xinzhou | HB |
| CNXIQ | Xiqiao | GD |
| CNXSB | Xishuangbanna | YN |
| CNJHG | Xishuangbanna Gasa International Apt | YN |
| CNXIP | Xingang | AH |
| CNXGA | Xingang | GD |
| CNXCE | Xingcheng | LN |
| CNXEN | Xingcheng | LN |
| CNXGD | Xingdong | HL |
| CNXNF | Xingfeng | 62 |
| CNXLN | Xinglin | 35 |
| CNXPI | Xingping | 14 |
| CNXGS | Xingshan | 13 |
| CNXGT | Xingtan | GD |
| CNACX | Xingyi | YN |
| CNXHK | Xinhekou | HB |
| CNXNH | Xinhua | |
| CNDMX | Xinhuan | GD |
| CNXIN | Xinhui Pt | GD |
| CNXNT | Xining | QH |
| CNXNN | Xining Caojiabao Apt | QH |
| CNXNU | Xiniu | GD |
| CNXNJ | Xinji | HE |
| CNXIK | Xinkai | HB |
| CNXIC | Xichang Qingshan Apt | SC |
| CNXCG | Xichong Pt | GD |
| CNXTI | Xidi | GD |
| CNXEG | Xiegang | GD |
| CNXEX | Xiexu | GX |
| CNXIG | Xigaze | XZ |
| CNXIJ | Xijiang | GX |
| CNILI | Xili | 35 |
| CNXLS | Xiliangshan | AH |
| CNXHT | Xilin Hot | NM |
| CNXLU | Xiluzhen | GD |
| CNSHX | Xinan | GD |
| CNXJG | Xinanjiang | 33 |
| CNXXI | Xinchang | ZJ |
| CNXCH | Xincheng | GD |
| CNLSX | Xincun | SD |
| CNXID | Xindi | HB |
| CNXDI | Xindian | HL |
| CNXDU | Xindu | GX |
| CNXAB | Xinfeng | GD |
| CNXJU | Xianju | 33 |
| CNXLA | Xianlang |