| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|
| 451 | Harbin | Heilongjiang | 5,878,939 | China | Asia/Harbin |
| 452 | Qiqihar | Heilongjiang | 882,364 | China | Asia/Harbin |
| 453 | Mudanjiang | Heilongjiang | 665,915 | China | Asia/Harbin |
| 454 | Jiamusi | Heilongjiang | 549,549 | China | Asia/Harbin |
| 455 | Suihua | Heilongjiang | 252,245 | China | Asia/Harbin |
| 456 | Heihe | Heilongjiang | 109,427 | China | Asia/Harbin |
| 458 | Yichun, Heilongjiang | Heilongjiang | 155,762 | China | Asia/Harbin |
| 4615 | Shuangcheng District | Heilongjiang | 130,710 | China | Asia/Harbin |
| 4617 | Jixi | Heilongjiang | 403,759 | China | Asia/Harbin |
| 4618 | Hegang | Heilongjiang | 743,307 | China | Asia/Harbin |
| 4638 | Suifenhe | Heilongjiang | 15,183 | China | Asia/Harbin |
| 464 | Qitaihe | Heilongjiang | 345,033 | China | Asia/Harbin |
| 4652 | Yichun, Heilongjiang | Heilongjiang | 155,762 | China | Asia/Harbin |
| 4665 | Nenjiang | Heilongjiang | 87,236 | China | Asia/Harbin |
| 467 | Mudanjiang | Heilongjiang | 665,915 | China | Asia/Harbin |
| 468 | Hegang | Heilongjiang | 743,307 | China | Asia/Harbin |
| 469 | Shuangyashan | Heilongjiang | 600,000 | China | Asia/Harbin |
| 543 | Bin County, Heilongjiang | Heilongjiang | 62,017 | China | Asia/Harbin |
| 579 | Jinhua | Zhejiang | 142,206 | China | Asia/Shanghai |
| 795 | Yichun, Heilongjiang | Heilongjiang | 155,762 | China | Asia/Harbin |