New Castle Indiana Area Code
One area code covers New Castle: 765.
The code covering New Castle
| Area code | Primarily serves | In service |
|---|---|---|
| 765 | Indianapolis | 1997 |
Scope the codes matched to New Castle. Source geoinfo-dataset (full_dataset) ZIP→NPA (2018 snapshot) and LocalCallingGuide NPA list (2026-07 NPA list). Updated . Overlay relationships come from the numbering-plan authority; the place match is computed.
Which part of town has which code
New Castle has a single code, so there is nothing to divide — every local line carries 765.
ZIP codes for the same city
Postal geography is organised separately from telephone geography, so New Castle’s 1 ZIP code do not map onto the codes above. They are listed in full, with the county each falls in, on the postal side of the site.
New Castle Indiana ZIP codes →
Nearby places with different codes
These are the closest places to New Castle whose area codes are not the same set. If you are near one of them, a local number may carry a code that is not on the list above.
| City | Distance | Their area codes |
|---|---|---|
| Carthage Indiana area codes | 17 mi | 317, 463, 765 |
| Pendleton Indiana area codes | 22 mi | 317, 463, 765 |
| Greenfield Indiana area codes | 23 mi | 317, 463, 765 |
| Ingalls Indiana area codes | 23 mi | 317, 463 |
| Fortville Indiana area codes | 25 mi | 317, 463 |
| Mccordsville Indiana area codes | 29 mi | 317, 463 |
| New Palestine Indiana area codes | 31 mi | 317, 463 |
| Fishers Indiana area codes | 32 mi | 317, 463 |
Straight-line distance between place reference points, not driving distance.