State directory / Delaware
US number directory / Delaware
Delaware
area codes
Delaware's numbering history in this register starts with 302 in 1947, within a current total of 1 geographic code.
1geographic area code
in this reference
in this reference
Earliest listed302 · 1947
Standard timeET
Overlays in this stateNone recorded in this snapshot
Major city starting points
Dover (capital): 302; Wilmington (largest city in state reference): 302.
| City | Reference role | Codes to check |
|---|---|---|
| Dover | Capital | 302 |
| Wilmington | Largest city in state reference | 302 |
City reference · 2026-10-25
Codes, cities & coverage
NANPA lists no active overlay complex for Delaware on 2026-10-25.
| Code | Region / major cities named in the reference | Introduced | Active overlay complexes |
|---|---|---|---|
| 302 | Delaware (all) | 01-Jan-1947 | None active in NANPA snapshot |
NANPA dates & overlays · 2026-10-25
Wikipedia geography · 2026-10-25 · CC BY-SA 4.0
Time zones
Delaware spans 1 standard-time offset in the state reference: ET.
| Standard offset | Region | Daylight saving |
|---|---|---|
| UTC−05:00 ET | Eastern | Yes |