[arin-announce] Remaining IPv4 Address Space Drops Below 5%

[ARIN]

The Number Resource Organization (NRO) announced today 
<http://www.nro.net/media/remaining-ipv4-address-below-5.html> that less 
than five percent of the world's IPv4 addresses remain unallocated 
following IANA's distribution of two IPv4 /8s to APNIC. The IANA IPv4 
free pool has now dropped to 12 /8s, or 4.69%. The IPv4 free pool dipped 
below 10% in January, just nine months ago. Since then, over 200 million 
IPv4 addresses have been allocated from IANA to the five Regional 
Internet Registries (RIRs).
 
The number of IPv4 allocations is expected to grow by only 8% this year. 
In contrast, the five RIRs are expected to allocate over 2,000 IPv6 
address blocks, representing an increase of over 70% on the number of 
IPv6 allocations in 2009. These statistics indicate an absence of any 
last minute "rush" on IPv4 addresses and a strong momentum behind the 
adoption of IPv6.
 
When the IANA IPv4 free pool has only five /8 blocks remaining, they 
will be simultaneously distributed to the five RIRs in accordance with 
global Internet number resource distribution policy. This means that 
only seven blocks remain to be handed out under the normal distribution 
method. At current depletion rates, the last five IPv4 address blocks 
will be allocated to the RIRs in early 2011.
 
The pressure to adopt IPv6 is mounting. Many worry that without adequate 
preparation and action, there will be a chaotic scramble for IPv6, which 
could increase Internet costs and threaten the stability and security of 
the global network. ARIN encourages you to deploy IPv6 now. Visit 
https://www.arin.net/knowledge/v4-v6.html for more information on IPv6 
adoption, or contact us at info at arin.net with any questions.
 
Regards,
 
Communications and Member Services
American Registry for Internet Numbers


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