Johnston, RI Area Codes
Johnston is served by area code 401. It is in Rhode Island, Providence County. About 29,802 people live in its 1 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 401 |
| State / province | Rhode Island |
| County | Providence County |
| Population | 29,802 |
| ZIP codes | 1 |
| Time zone | Eastern |
| Coordinates | 41.8274, -71.5199 |
What area code is Johnston in?
| Area code | Main state | Population covered | Overlap |
|---|---|---|---|
| 401 | Rhode Island | 1,101,850 | — |
ZIP codes in the code footprint
Nearby towns and their area codes
North Providence 401Cranston 401Providence 401Smithfield 401Lincoln 401Central Falls 401East Providence 401Pawtucket 401
How to dial
Dial 401 + 7 digits for a number in Johnston, or +1 401 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.