| General Information about Area Code 442 | |
|---|---|
| Country | United States |
| State / Province / Territory | California |
| Major City | Oceanside |
| Time Zone | Pacific (UTC-08:00) |
| Prefix | Primary City | County | Phone Type |
|---|---|---|---|
| 442-278 | - | - | - |
| 442-242 | Victorville | San Bernardino | Landline |
| 442-229 | Victorville | San Bernardino | Landline |
| 442-258 | El Centro | Imperial | Wireless |
| 442-262 | Oceanside | San Diego | Wireless |
| 442-324 | Indio | Riverside | Landline |
| 442-244 | Carlsbad | San Diego | Landline |
| 442-300 | Indio | Riverside | Landline |
| 442-265 | El Centro | Imperial | Landline |
| 442-235 | Barstow | San Bernardino | Wireless |
| 442-223 | Daggett | San Bernardino | Landline |
| 442-200 | Calexico | Imperial | Landline |
| 442-236 | El Centro | Imperial | Wireless |
| 442-283 | El Centro | Imperial | Landline |
| 442-456 | El Centro | Imperial | Landline |
| 442-238 | El Centro | Imperial | Wireless |
| 442-252 | Calexico | Imperial | Landline |
| 442-240 | Death Valley | Inyo | Landline |
| 442-254 | Fallbrook | San Diego | Landline |
| 442-248 | Escondido | San Diego | Wireless |