| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|
| 10 | Onze-Lieve-Vrouw-Waver | Flanders | — | Belgium | Europe/Brussels |
| 11 | Hasselt | Flanders | 69,222 | Belgium | Europe/Brussels |
| 12 | Tongeren | Flanders | 29,816 | Belgium | Europe/Brussels |
| 13 | Diest | Flanders | 22,516 | Belgium | Europe/Brussels |
| 14 | Turnhout | Flanders | 39,654 | Belgium | Europe/Brussels |
| 15 | Mechelen | Flanders | 77,530 | Belgium | Europe/Brussels |
| 16 | Leuven | Flanders | 92,892 | Belgium | Europe/Brussels |
| 3 | Antwerp | Flanders | 459,805 | Belgium | Europe/Brussels |
| 4 | Liège | Wallonia | 182,597 | Belgium | Europe/Brussels |
| 50 | Bruges | Flanders | 116,709 | Belgium | Europe/Brussels |
| 51 | Roeselare | Flanders | 56,016 | Belgium | Europe/Brussels |
| 52 | Dendermonde | Flanders | 43,055 | Belgium | Europe/Brussels |
| 53 | Aalst, Belgium | Flanders | — | Belgium | Europe/Brussels |
| 54 | Ninove | Flanders | — | Belgium | Europe/Brussels |
| 55 | Ronse | Flanders | 24,204 | Belgium | Europe/Brussels |
| 56 | Kortrijk | Flanders | 73,879 | Belgium | Europe/Brussels |
| 58 | Veurne | Flanders | 11,983 | Belgium | Europe/Brussels |
| 59 | Ostend | Flanders | 69,011 | Belgium | Europe/Brussels |
| 89 | Genk | Flanders | 63,666 | Belgium | Europe/Brussels |
| 9 | Ghent | Flanders | 231,493 | Belgium | Europe/Brussels |