Significant events for area code 206
Date |
Details |
1947 | Original area code for all of Washington. |
1956 | Area code was split, with 509 covering the eastern 2/3 of the state. |
January 15, 1995 | Area code was split with 360 forming (a sort of) "doughnut" around the Seattle metro area. The two parts of 360 are not contiguous |
April 25, 1997 | A three-way split of 206, with 253 covering south of the Seattle metro area and 425 covering the area north and east |