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RE: Action item: Phone number example

From: Roberto Scano \(IWA/HWG\) <r.scano@webprofession.com>
Date: Tue, 19 Jun 2007 12:08:02 +0200
To: "'List WAI GL'" <w3c-wai-gl@w3.org>
Message-ID: <4677ab02.2435440a.200e.0add@mx.google.com>



From: w3c-wai-gl-request@w3.org [mailto:w3c-wai-gl-request@w3.org] On Behalf
Of Robinson, Norman B - Washington, DC
Sent: Monday, June 18, 2007 4:35 PM
To: Richard Ishida; Michael Cooper; List WAI GL
Subject: RE: Action item: Phone number example

http://en.wikipedia.org/wiki/Telephone_numbering_plan might be of interest.
Of specific note the article links to a "World Telephone Numbering Guide"
that I've used as a reference for developers. They also include links to the
official standards that might be useful instead of the example offered in
the below email.
 
I'd also like to encourage you to update the wikipedia article with any
relevant suggestions, for everyone's benefit.
 
Roberto Scano:

ITU-T E.164 Numbering Structure for
Geographic Areas
The international public telecommunication number
for geographic areas uniquely identifies a subscriber
within a geographical area locally, nationally, and
internationally. It consists of the country code, a national
destination code (NDC), followed by the subscriber
number (SN). The country code consists of 1
to 3 digits and the national destination code is optional.
The National Significant Number (NSN) consists
of the NDC and SN. The maximum length of the
NSN is dependent on the length of the country code.
For example, a 3-digit country code enables a maximum
of 12 digits allowed for the NSN (15—the number
of digits in the country code), for a 2-digit country
code, a maximum of 13 digits are allowed for the
NSN. The geographic area numbering structure and
format are illustrated in Figure 1; it is the format for
which telephone subscribers are most familiar. For
instance, the telephone number +1-703-610-2000 is an
example of this format.

http://www.noblis.org/Publications/Paper_08_TR2006.pdf



---
Roberto Scano
International Webmasters Association / The HTML Writers Guild
http://www.iwanet.org
Received on Tuesday, 19 June 2007 10:08:13 GMT

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