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 APNIC  | 
 The Asia Pacific Network Information Centre 
APNIC is a non-profit membership organization responsible for the administration 
and registration of Internet Protocol (IP) addresses in the Asia-Pacific 
region, including Japan, Korea, China, and Australia.  
<http://www.apnic.net> 
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 ARIN  | 
 American Registry for Internet Numbers 
ARIN is a non-profit membership organization established for the purpose 
of the administration and registration of Internet Protocol (IP) addresses 
in the geographical areas previously managed by Network Solutions, Inc. 
Those areas include North America, South America, the Caribbean and sub-Saharan 
Africa.  
<http://www.arin.net> 
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 IANA
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 Internet Assigned Numbers Authority 
The IANA is the authority originally responsible 
for the oversight of IP address allocation, the coordination of the assignment 
of protocol parameters provided for in Internet technical standards, and 
the management of the DNS, including the delegation of top-level domains 
and oversight of the root name server system. Under ICANN, the IANA continues 
to distribute addresses to the Regional Internet Registries, coordinate 
with the IETF and others to assign protocol parameters, and oversee the 
operation of the DNS. 
<http://www.iana.org> 
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 RIPE and RIPE NCC
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 Réseaux IP Européens 
RIPE is an open and voluntary organization 
which consists of European Internet service providers. The RIPE NCC acts 
as the Regional Internet Registry (RIR) for Europe and surrounding areas, 
performs coordination activities for the organizations participating in 
RIPE, and allocates blocks of IP address space to its Local Internet Registries 
(LIRs), which then assign the addresses to end-users.  
<http://www.ripe.net>
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