Rialto, CA Area Codes
Rialto is served by area codes 840 and 909. It is in California, San Bernardino County. About 105,208 people live in its 2 ZIP codes.
| Field | Value |
|---|---|
| Area code(s) | 840, 909 |
| State / province | California |
| County | San Bernardino County |
| Population | 105,208 |
| ZIP codes | 2 |
| Time zone | Pacific |
| Coordinates | 34.1315, -117.3920 |
What area code is Rialto in?
ZIP codes in the code footprint
Nearby towns and their area codes
Fontana 840, 909Bloomington 840, 909San Bernardino 840, 909Grand Terrace 840, 909Colton 840, 909Loma Linda 840, 909Crestline 840, 909Rancho Cucamonga 840, 909
How to dial
Dial 840 + 7 digits for a number in Rialto, or +1 840 ... from abroad. Ten-digit dialling is required everywhere in the North American Numbering Plan.