| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|
| 25 | Nanjing | Jiangsu | 7,165,292 | China | Asia/Shanghai |
| 510 | Wuxi | Jiangsu | 3,543,719 | China | Asia/Shanghai |
| 511 | Zhenjiang | Jiangsu | 632,552 | China | Asia/Shanghai |
| 512 | Suzhou | Jiangsu | 5,345,961 | China | Asia/Shanghai |
| 513 | Nantong | Jiangsu | 666,251 | China | Asia/Shanghai |
| 514 | Yangzhou | Jiangsu | 539,715 | China | Asia/Shanghai |
| 516 | Xuzhou | Jiangsu | 1,199,193 | China | Asia/Shanghai |
| 517 | Huai'an | Jiangsu | — | China | Asia/Shanghai |
| 518 | Lianyungang | Jiangsu | — | China | Asia/Shanghai |
| 519 | Changzhou | Jiangsu | 949,018 | China | Asia/Shanghai |
| 5211 | Danyang, Jiangsu | Jiangsu | — | China | Asia/Shanghai |
| 5217 | Jiangyin | Jiangsu | 107,918 | China | Asia/Shanghai |
| 5218 | — | Jiangsu | 76,770,000 | China | Asia/Shanghai |
| 523 | Taizhou, Jiangsu | Jiangsu | 612,356 | China | Asia/Shanghai |
| 5231 | Haimen | Jiangsu | — | China | Asia/Shanghai |
| 5232 | Qidong, Jiangsu | Jiangsu | 74,818 | China | Asia/Shanghai |
| 5241 | Taizhou, Jiangsu | Jiangsu | 612,356 | China | Asia/Shanghai |
| 5244 | — | Jiangsu | 76,770,000 | China | Asia/Shanghai |
| 5247 | Gaoyou | Jiangsu | — | China | Asia/Shanghai |
| 527 | Suqian | Jiangsu | — | China | Asia/Shanghai |
| 557 | Suzhou | Jiangsu | 5,345,961 | China | Asia/Shanghai |
| 576 | Taizhou, Jiangsu | Jiangsu | 612,356 | China | Asia/Shanghai |
| 8676 | Tongzhou District, Nantong | Jiangsu | 95,647 | China | Asia/Shanghai |