Area Codes in Heek
| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|---|---|---|---|---|
| 45 | Heerlen | Limburg (Netherlands) | 93,084 | Netherlands | Europe/Amsterdam |
Nearby Cities
| City | Region | Country | Population | Area Codes | Postal Codes |
|---|---|---|---|---|---|
| Hulsberg | Limburg (Netherlands) | Netherlands | — | 45 | 6336 |
| Klimmen | Limburg (Netherlands) | Netherlands | 1,980 | 45 | 6343 |
| Oud-Valkenburg | Limburg (Netherlands) | Netherlands | 130 | 43 | — |
| Schin op Geul | Limburg (Netherlands) | Netherlands | 1,300 | 43 | 6305, 6341, 6342 |
| Walem, Netherlands | Limburg (Netherlands) | Netherlands | 150 | 43 | 6341, 6342 |