| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|
| 345 | Culemborg | Gelderland | 26,826 | Netherlands | Europe/Amsterdam |
| 50 | Groningen | Groningen (province) | 181,194 | Netherlands | Europe/Amsterdam |
| 512 | Jistrum | Friesland | — | Netherlands | Europe/Amsterdam |
| 516 | Appelscha | Friesland | — | Netherlands | Europe/Amsterdam |
| 521 | Steenwijk | Overijssel | 17,138 | Netherlands | Europe/Amsterdam |
| 522 | Nijeveen | Drenthe | — | Netherlands | Europe/Amsterdam |
| 524 | Schoonebeek | Drenthe | 4,997 | Netherlands | Europe/Amsterdam |
| 528 | Nieuwlande | Drenthe | — | Netherlands | Europe/Amsterdam |
| 534 | Enschede | Overijssel | 153,655 | Netherlands | Europe/Amsterdam |
| 561 | Wolvega, Weststellingwerf | Friesland | 25,500 | Netherlands | Europe/Amsterdam |
| 591 | Emmen, Netherlands | Drenthe | 57,010 | Netherlands | Europe/Amsterdam |
| 592 | Assen | Drenthe | 62,237 | Netherlands | Europe/Amsterdam |
| 593 | Beilen | Drenthe | — | Netherlands | Europe/Amsterdam |
| 594 | Oostwold, Leek | Groningen (province) | — | Netherlands | Europe/Amsterdam |
| 598 | Wildervank | Groningen (province) | — | Netherlands | Europe/Amsterdam |
| 599 | Tweede Exloërmond | Drenthe | — | Netherlands | Europe/Amsterdam |