| Code | Name | Region |
|---|---|---|
| CNYJI | Yangjiang | GD |
| CNYGK | Yangkou | SD |
| CNYKG | Yangkou Pt | JS |
| CNYLI | Yangli | GZ |
| CNYMD | Yangmadao | SD |
| CNYPE | Yangpeng | AH |
| CNYGP | Yangpu | SH |
| CNYPG | Yangpu Pt | HI |
| CNYSN | Yangshan | GD |
| CNYSA | Yangshan Pt | ZJ |
| CNYSF | Yangshufang | 21 |
| CNYSO | Yangshuo | GX |
| CNYGG | Yanguan | HN |
| CNYXY | Yangxi | GD |
| CNYGX | Yangxi | HB |
| CNYXT | Yangxifengtou | GD |
| CNYNG | Yangzhong | JS |
| CNYZH | Yangzhou | JS |
| CNXTO | Xitou | GD |
| CNXUL | Xiulin | HB |
| CNXYG | Xiuyu Pt | FJ |
| CNXXN | Xixiang | SN |
| CNUAN | Xuancheng | 34 |
| CNXUM | Xuanmen | ZJ |
| CNXWI | Xuanwei | YN |
| CNXUC | Xuchang | HA |
| CNXEO | Xueao | ZJ |
| CNXJD | Xuejiadao | SD |
| CNXTZ | Xuetangzhou | HB |
| CNXUI | Xuhuiqu | SH |
| CNXUK | Xunke | HL |
| CNXZH | Xuzhou | JS |
| CNXUZ | Xuzhou Guanyin Apt | JS |
| CNYBG | Yabagou | LN |
| CNYDZ | Yadong | XZ |
| CNENY | Yan'an | SN |
| CNYBU | Yanbu | GD |
| CNYNZ | Yancheng | JS |
| CNNNI | Xinning | 36 |
| CNXNQ | Xinqiao | GD |
| CNXNA | Xinsha | GD |
| CNXSH | Xinshi | HB |
| CNXIT | Xintang Pt | GD |
| CNXXG | Xinxiang | HA |
| CNXNX | Xinxing | 44 |
| CNXNI | Xinxing | JS |
| CNCNX | Xinxu | GD |
| CNING | Xinyang | HA |
| CNNYI | Xinyi | 32 |
| CNXIY | Xinyi | 44 |