New NPAs in service between Sunday, July 01, 2018and Sunday, September 30, 2018
|NPA||Country||Time Difference (From GMT)||State||State Abbrv.||Service Date||Comments
|640||USA||-5||New Jersey||NJ||17 Sep 2018||
See World Zone 1 for explanation of "NPA"
||is with respect to GMT (UCT)
|indicate the code is not in use: the "Service Date" has been delayed or not set
||is the date code becomes (or became) effective. If no date is shown, the code was introduced before 1995