A CDE Definition
(Numbering Plan Area code) The area code of a telephone number in the NPA system. The first NPA codes used 0 or 1 as the center digit, such as 201, 212, 301, 312, etc., designated as "N0/1X." After July 1, 1995, all digits 0 through 9 are valid as the center digit, designated as "NXX." See NPA and NPA/Nxx.
Before/After Your Search Term
|Novell Directory Services||NPA/Nxx|
|Novell Users International||NPI|
Terms By Topic
Click any of the following categories for a list of fundamental terms.