Significant events for area code 281
| Date |
Details |
| November 2, 1996 | Area code 713 was split with most of the Houston suburbs changing to 281. |
| January 16, 1999 | Area code 832 was overlaid on 713 and 281. In addition, 281 became an overlay on 713 |
| July 1, 2014 | Area code 346 was overlaid on 713 , 281 and 832 |