Which three of these are components of the North American Numbering Plan?

Which three of these are components of the North American Numbering Plan? (Choose three.)

A.
Numbering Plan Area

B.
country code

C.
prefix

D.
zone

E.
line number

F.
trunk channel

Explanation:
Explanation

NANP has the address format of NXX-NXX-XXXX, where N is any number from 2 to 9 and X is any number from 0 to 9. The rst three digits identify the numbering plan area and are commonly called the area code. The address is further divided into the office code (also known as prefix) and line number. The prefix is three digits, and the line number is four digits. The line number identifies the phone.