Area Codes in Grudusk
| Area Code▲ | City↕ | Administrative Region↕ | City Population↕ | Country/Region | Timezone |
|---|---|---|---|---|---|
| 23 | Ciechanów | Masovian Voivodeship | 46,438 | Poland | Europe/Warsaw |
Nearby Cities
| City | Region | Country | Population | Area Codes | Postal Codes |
|---|---|---|---|---|---|
| Czernice Borowe | Masovian Voivodeship | Poland | 480 | 23 | — |
| Międzyleś, Mława County | Masovian Voivodeship | Poland | — | 83, 25 | — |
| Pszczółki-Czubaki | Masovian Voivodeship | Poland | — | 58 | — |
| Ruda, Mława County | Masovian Voivodeship | Poland | — | 43, 56, 67 | — |
| Zeńbok | Masovian Voivodeship | Poland | — | 23 | — |