Delaware Dialing Codes, Country Codes and Area Codes
| City | Country Codes | Area Codes | Dialing Codes |
|---|---|---|---|
| Delaware City | +1 | 302 | +1 302 |
| Dover | +1 | 302 | +1 302 |
| Kent | +1 | 302 | +1 302 |
| New Castle | +1 | 302 | +1 302 |
| Sussex | +1 | 302 | +1 302 |
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