most recent 30 from http://mrwatsoncomehere.com 2010-07-30T02:45:37Z http://mrwatsoncomehere.com/feeds/question/9 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mrwatsoncomehere.com/questions/9/why-are-ss7-point-codes-different-sizes Bruce Fitzsimons 2009-10-13T07:56:48Z 2010-07-20T20:23:02Z

<p>Chinese and North American SS7 point codes are 24 bits, ITU and International point codes are 14 bits and Japanese point codes are 16 bits.</p> <p>Why?</p>

http://mrwatsoncomehere.com/questions/9/why-are-ss7-point-codes-different-sizes/10#10 Bruce Fitzsimons 2009-10-13T08:21:32Z 2009-10-13T08:21:32Z

<p>ANSI and Chinese SS7 point codes are probably bigger as they need to address more network elements in their geography than other national networks.</p> <p>Japanese point codes are different, just because. [I'd like to know if there is a reason]</p> <p>For the record, ANSI point codes are often written in 8-8-8 format (network, cluster, member) whereas ITU pointcodes are more commonly represented in decimal or hexadecimal. However they can be written in 3-8-3 format or any local convention (up to and including 7-7).</p> <p>ANSI point codes are allocated by <a href="http://www.ss7pcadmin.com/index.cfm" rel="nofollow">Telecordia</a>, ITU national point codes are allocated by a national authority.</p>