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<registry xmlns="http://www.iana.org/assignments" id="ipv6-address-space">
  <title>Internet Protocol Version 6 Address Space</title>
  <updated>2012-08-02</updated>
  <note>The IPv6 address management function was formally delegated to
    IANA in December 1995 <xref type="rfc" data="rfc1881"/>. The registration procedure
    was confirmed with the IETF Chair in March 2010.</note>
<registry id="ipv6-address-space-1">
  <registration_rule>IESG Approval</registration_rule>
  <record>
    <prefix>0000::/8</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc4291"/>
    <xref type="note" data="1"/>
    <xref type="note" data="5"/>
    <xref type="note" data="6"/>
  </record>
  <record>
    <prefix>0100::/8</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc4291"/>
    <xref type="note" data="8"/>
  </record>
  <record>
    <prefix>0200::/7</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc4048"/>
    <xref type="note" data="2"/>
  </record>
  <record>
    <prefix>0400::/6</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc4291"/>
  </record>
  <record>
    <prefix>0800::/5</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc4291"/>
  </record>
  <record>
    <prefix>1000::/4</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc4291"/>
  </record>
  <record>
    <prefix>2000::/3</prefix>
    <description>Global Unicast</description>
    <xref type="rfc" data="rfc4291"/>
    <xref type="note" data="3"/>
  </record>
  <record>
    <prefix>4000::/3</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc4291"/>
  </record>
  <record>
    <prefix>6000::/3</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc4291"/>
  </record>
  <record>
    <prefix>8000::/3</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc4291"/>
  </record>
  <record>
    <prefix>A000::/3</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc4291"/>
  </record>
  <record>
    <prefix>C000::/3</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc4291"/>
  </record>
  <record>
    <prefix>E000::/4</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc4291"/>
  </record>
  <record>
    <prefix>F000::/5</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc4291"/>
  </record>
  <record>
    <prefix>F800::/6</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc4291"/>
  </record>
  <record>
    <prefix>FC00::/7</prefix>
    <description>Unique Local Unicast</description>
    <xref type="rfc" data="rfc4193"/>
  </record>
  <record>
    <prefix>FE00::/9</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc4291"/>
  </record>
  <record>
    <prefix>FE80::/10</prefix>
    <description>Link Local Unicast</description>
    <xref type="rfc" data="rfc4291"/>
  </record>
  <record>
    <prefix>FEC0::/10</prefix>
    <description>Reserved by IETF</description>
    <xref type="rfc" data="rfc3879"/>
    <xref type="note" data="4"/>
  </record>
  <record>
    <prefix>FF00::/8</prefix>
    <description>Multicast</description>
    <xref type="rfc" data="rfc4291"/>
    <xref type="note" data="7"/>
  </record>
  <footnote anchor="1">The "unspecified address", the "loopback address", and the IPv6 
Addresses with Embedded IPv4 Addresses are assigned out of the 
0000::/8 address block.</footnote>
  <footnote anchor="2">0200::/7 was previously defined as an OSI NSAP-mapped prefix set 
<xref type="rfc" data="rfc4548"/>. This definition has been deprecated as of December 
2004 <xref type="rfc" data="rfc4048"/>.</footnote>
  <footnote anchor="3">The IPv6 Unicast space encompasses the entire IPv6 address range 
with the exception of FF00::/8. <xref type="rfc" data="rfc4291"/> IANA unicast address 
assignments are currently limited to the IPv6 unicast address 
range of 2000::/3. IANA assignments from this block are registered 
in the IANA registry: <xref type="registry" data="ipv6-unicast-address-assignments"/>.</footnote>
  <footnote anchor="4">FEC0::/10 was previously defined as a Site-Local scoped address 
prefix. This definition has been deprecated as of September 2004
<xref type="rfc" data="rfc3879"/>.</footnote>
  <footnote anchor="5">0000::/96 was previously defined as the "IPv4-compatible IPv6 
address" prefix.  This definition has been deprecated by <xref type="rfc" data="rfc4291"/>.</footnote>
  <footnote anchor="6">The "Well Known Prefix" 64:ff9b::/96 used in an algorithmic
mapping between IPv4 to IPv6 addresses is defined out of the
0000::/8 address block, per <xref type="rfc" data="rfc6052"/>.</footnote>
  <footnote anchor="7">IANA assignments from this block are registered 
    in the IPv6 Multicast Address Space Registry: <xref type="registry" data="ipv6-multicast-addresses"/>.</footnote>
  <footnote anchor="8">0100::/64 is assigned as a Discard-Only Prefix for remote triggered blackhole routing as per <xref type="rfc" data="rfc6666"/>.</footnote>
  <people/>
</registry>
 </registry>
