Area Codes sa Heiligenhaus
| Area Code▲ | Lungsod↕ | Namamahalang Rehiyon↕ | Populasyon ng Siyudad↕ | Bansa/Rehiyon | Oras ng Dako |
|---|---|---|---|---|---|
| 2051 | Velbert | Hilagang Renania-Westfalia | 87,669 | Alemanya | Europe/Berlin |
| 2054 | Essen, Alemanya | Hilagang Renania-Westfalia | 593,085 | Alemanya | Europe/Berlin |
| 2056 | Velbert | Hilagang Renania-Westfalia | 87,669 | Alemanya | Europe/Berlin |
| 2058 | Wuppertal | Hilagang Renania-Westfalia | 360,797 | Alemanya | Europe/Berlin |
| 2102 | Ratingen | Hilagang Renania-Westfalia | 91,606 | Alemanya | Europe/Berlin |
Mga Kalapit na Siyudad
| Lungsod | Rehiyon | Bansa | Populasyon | Area Codes | Postal Code |
|---|---|---|---|---|---|
| Erkrath | Hilagang Renania-Westfalia | Alemanya | 47,815 | 2129, 2104, 211, 2103 | 40699 |
| Kettwig | Hilagang Renania-Westfalia | Alemanya | — | 2054 | — |
| Mettmann | Hilagang Renania-Westfalia | Alemanya | 39,550 | 2058, 2104 | 40822 |
| Velbert | Hilagang Renania-Westfalia | Alemanya | 87,669 | 2053, 2052, 2051, 2056 | 42549, 42551, 42553, 42555 |
| Wülfrath | Hilagang Renania-Westfalia | Alemanya | 22,355 | 2056, 2053, 2051, 2058 | 42489 |