Significant events for area code 714
| Date |
Details |
| 1951 | Area code 213 was split, with 714 covering the southern part of the 213 area code to the Mexican border |
| 1982 | Area code 714 was split, with 619 covering the southern and eastern parts of the 714 area code. |
| November 14, 1992 | Area code 714 was split, with 909 covering the eastern part of the 714 area code. |
| April 18, 1998 | Area code 714 was split, with 949 covering the southern part of the 714 area code. |
| September 23, 2008 | Area code 657 was overlaid on 714. |