| District of California area codes: 909 | |
|---|---|
| Country | United States |
| State/Province | California |
| Major City | Riverside |
| Time Zone | Pacific |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 909-663 | San Bernardino | San Bernardino, CA | Mpower Communications Corp |
| 909-664 | San Bernardino | Chino, CA | Teleport Communications Group - Los Angeles |
| 909-666 | San Bernardino | Rialto, CA | Telcentris Communications |
| 909-667 | Los Angeles | La Verne, CA | Cf Communications DBA Telekenex |
| 909-668 | Riverside | Temecula, CA | American Messaging Services |
| 909-669 | San Bernardino | Ontario, CA | Shelcomm |
| 909-670 | Los Angeles | Pomona, CA | Mpower Communications Corp |
| 909-673 | San Bernardino | Ontario, CA | Verizon California Inc.-ca (gte) |
| 909-677 | San Bernardino | San Bernardino, CA | Cellco Partnership DBA Verizon Wireless |
| 909-680 | San Bernardino | Chino, CA | New Cingular Wireless PCS |
| 909-684 | San Bernardino | Fontana, CA | Sprint Spectrum L.p. |
| 909-685 | San Bernardino | Rialto, CA | New Cingular Wireless PCS |
| 909-689 | San Bernardino | Etiwanda, CA | O1 Communications |
| 909-690 | San Bernardino | San Bernardino, CA | 33 Wireless Inc. |
| 909-691 | Riverside | Riverside, CA | 33 Wireless Inc. |
| 909-692 | San Bernardino | Colton, CA | American Messaging Services |
| 909-693 | San Bernardino | San Bernardino, CA | Cellco Partnership DBA Verizon Wireless |
| 909-694 | San Bernardino | Upland, CA | Xo California |
| 909-697 | San Bernardino | Fontana, CA | Sprint Spectrum L.p. |
| 909-702 | San Bernardino | Ontario, CA | New Cingular Wireless PCS |
There are 627 prefixes, In the code area, the major cities are Chino, CA;Chino Hills, CA;Claremont, CA;Colton, CA. The major city is Riverside.