| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|
| 174 | — | Hamadan Province | 1,758,268 | Iran | Asia/Tehran |
| 232 | Semnan, Iran | Semnan Province | 124,826 | Iran | Asia/Tehran |
| 242 | Zanjan, Iran | Zanjan Province | 357,471 | Iran | Asia/Tehran |
| 282 | Torbat-e Heydarieh | Razavi Khorasan Province | 125,633 | Iran | Asia/Tehran |
| 422 | Malekan | East Azerbaijan Province | — | Iran | Asia/Tehran |
| 443 | Salmas | West Azerbaijan Province | 81,606 | Iran | Asia/Tehran |
| 612 | Bahar, Iran | Hamadan Province | 28,645 | Iran | Asia/Tehran |
| 663 | Aleshtar | Lorestan Province | 27,701 | Iran | Asia/Tehran |
| 811 | Hamadan | Hamadan Province | 528,256 | Iran | Asia/Tehran |
| 812 | Hamadan | Hamadan Province | 528,256 | Iran | Asia/Tehran |
| 851 | Malayer | Hamadan Province | 176,573 | Iran | Asia/Tehran |
| 852 | Hamadan | Hamadan Province | 528,256 | Iran | Asia/Tehran |