Area Codes sa Erkrath
| Area Code▲ | Lungsod↕ | Namamahalang Rehiyon↕ | Populasyon ng Siyudad↕ | Bansa/Rehiyon | Oras ng Dako |
|---|---|---|---|---|---|
| 2103 | Solingen | Hilagang Renania-Westfalia | 164,359 | Alemanya | Europe/Berlin |
| 2104 | Erkrath | Hilagang Renania-Westfalia | 47,815 | Alemanya | Europe/Berlin |
| 211 | Düsseldorf | Hilagang Renania-Westfalia | 573,057 | Alemanya | Europe/Berlin |
| 2129 | Haan | Hilagang Renania-Westfalia | 29,431 | Alemanya | Europe/Berlin |
Mga Kalapit na Siyudad
| Lungsod | Rehiyon | Bansa | Populasyon | Area Codes | Postal Code |
|---|---|---|---|---|---|
| Grafenberg | Hilagang Renania-Westfalia | Alemanya | — | 9199, 9192, 9197, 7123 | — |
| Haan | Hilagang Renania-Westfalia | Alemanya | 29,431 | 202, 2129, 2104, 2058 | 42781 |
| Hilden | Hilagang Renania-Westfalia | Alemanya | 56,565 | 2103, 211, 212, 2129 | 40721, 40723, 40724 |
| Mettmann | Hilagang Renania-Westfalia | Alemanya | 39,550 | 2058, 2104 | 40822 |
| Ratingen | Hilagang Renania-Westfalia | Alemanya | 91,606 | 2054, 2058, 2102 | 40832, 40878, 40880, 40882 |