(DC)- D-C is expecting to run out of 202 area codes as early as 2023. The North American Numbering Plan Administrator in Herdon reports there are about 360-thousand phone numbers left that start with 202. The area code in DC has been in service since 1947. Planners already know what the second area code is but have not released it to the public. It will be released a year or two before its expected to be first used.