Definitions for "North American Numbering Plan"
Keywords:  nanp, npa, bermuda, caribbean, nnx
This plan is responsible for assigning the area codes and routing calls throughout North America.
Edit / See: NANP
The numbering plan used in the United States, Canada, Bermuda, Puerto Rico, and certain Caribbean Islands. The NANP format is a 10-digit number that consists of a 3-digit NPA code (Area Code), 3-digit NXX code (Exchange), and 4-digit code (Line).