As of October 2012:
- 207 = Maine
- 208 = Idaho
- 302 = Delaware
- 307 = Wyoming
- 401 = Rhode Island
- 406 = Montana
- 603 = New Hampshire
- 605 = South Dakota
- 701 = North Dakota
- 802 = Vermont
- 808 = Hawaii
- 907 = Alaska*
In addition, in Canada:
- 204 = Manitoba (but adding overlay 431 in November 2012)
- 306 = Saskatchewan (but adding overlay 639 in 2013)
- 506 = New Brunswick
- 709 = Newfoundland and Labrador
- 867 = Yukon, Nunavut, and Northwest Territories
- 902 = Nova Scotia and Prince Edward Island
* The tiny town of Hyder, Alaska, is in area code 250, but calls there are billed as calls to British Columbia, Canada.
