[Asterisk-Users] US telco lingo

Rob Lith
2006-05-23T10:01:10Z

On 23/05/06, Matthew Crocker <matthew@crocker.com>
wrote:
>
>
> > NPANXX breakout."
> >


With a little help from voip-info.org:

NPA-NXX-XXXX

Where NPA is the 3-digit Numbering Plan Area (Area Code) and NXX identifies
the central office exchange allocated within the NPAs and XXXX are the
consecutive last 4 digits of a NANP 7-digit local phone number (N is any
digit from 2-9, and X from 0-9)

Regards
Rob
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