[apnic-talk][Apnic-announce] FW: IPv4 Address Space

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  • Subject: [apnic-talk][Apnic-announce] FW: IPv4 Address Space
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  • Date: Thu, 30 Oct 2003 09:57:50 +1000
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      Dear Colleagues,
      The following announcement by RIPE NCC clarifies the consumption of IPv4
      address space and was prepared in response to recent media reports of
      IPv4 address shortages.
      If you would like to participate in the discussion of this issue on the
      RIPE 'address-policy-wg' list, the archive and subscription details are
      available at:
      APNIC Secretariat                              <secretariat at apnic dot net>
      Asia Pacific Network Information Centre (APNIC)   Tel: +61-7-3858-3100
      PO Box 2131 Milton, QLD 4064 Australia            Fax: +61-7-3858-3199
      Level 1, 33 Park Road, Milton, QLD                http://www.apnic.net
      See you at APNIC 17
      Kuala Lumpur, Malaysia, 23-27 February 2004     www.apnic.net/meetings
      ---------- Forwarded message ----------
      Date: Wed, 29 Oct 2003 17:34:54 +0100
      From: Paul Rendek <ncc at ripe dot net>
      To: local-ir at ripe dot net, address-policy-wg at ripe dot net, ncc-co at ripe dot net
      Subject: [address-policy-wg] IPv4 Address Space
      [Apologies for duplicate mailings]
      Dear Colleagues,
      There have been press articles posted over the past year that make
      statements about the remaining pool of IPv4 address space. A recent
      article states there is a shortage and that Internet Protocol Numbers
      will run out some time in the year 2005.
      The Regional Internet Registries (RIRs) do not themselves make
      predictions about when the remaining IPv4 address space will be
      depleted. They do, however, report on the rates of RIR allocation of
      IPv4 address space and on the state of the remaining pool of IPv4
      address space.
      The information provided in these RIR reports makes it apparent that
      many of the recent claims regarding IPv4 address space shortage are
      speculative and are not based on authoritative, publicly available
      IPv4 Address Space: Current Statistics
      The global pool of IPv4 addresses is administered by the Internet
      Assigned Numbers Authority (IANA), which allocates address blocks to
      Regional Internet Registries (RIRs) as they are required. The IPv4
      allocation unit in this case is the "/8 block", equivalent to
      approximately 16 million addresses. It should be noted that as of 30
      June 2003 the global pool of IPv4 address space contained 91 of these
      blocks for this purpose.
      The RIRs report on statistics regarding IPv4 allocation on their
      respective web sites and present a "Joint Statistics" report at each of
      the RIR meetings and at other Internet industry meetings several times
      yearly. This information is publicly available and provides the most
      up-to-date statistics on rates of IPv4 allocation. The most recent
      presentation on this subject can be found at:
      This report states that the RIRs have collectively allocated 19.59 /8
      equivalents in the four and a half years between January 1999 and June
      2003. It also identifies that there are 91 /8 equivalents held by the
      IANA in reserve for future allocation by the RIRs.
      Based on today's total global allocation rate of approximately 4.25
      blocks per year in 2002, or 5.5 blocks in 2001, and the remaining pool
      of 91 blocks held by IANA, it is unrealistic to assume that there is an
      imminent shortage in the IPv4 address space. Even allowing for a
      dramatic increase in address consumption rates, it is highly probable
      that IPv4 address space will last well beyond the two years predicted by
      IPv4 Address Space: Allocated Globally According to Regional Needs
      The RIRs are not-for-profit membership organisations dedicated to
      providing neutral and fair Internet resource distribution to their
      members, while ensuring the conservation and aggregation of IPv4 address
      space. The IANA policies for allocation of IPv4 address blocks to the
      RIRs are applied fairly and are based purely on the documented need for
      address space.
      When IPv4 address space finally "runs out" this will occur at the global
      level, leaving each region with a relatively small pool of addresses
      remaining to be allocated. It has been suggested that Asia will
      experience an IPv4 address shortage before other regions. This is simply
      not true. This is because addresses are distributed in a co-ordinated
      fashion from a single global pool, and there is no system whereby that
      pool is exclusively divided among, or pre-allocated to, different
      countries or regions. Through the current system of address
      administration, IP addresses are allocated according to immediate need
      wherever that need is demonstrated and it is simply not possible for
      isolated "shortages" to exist.
      As has been done in the past, the RIRs will continue to report regularly
      on the registration and allocation rates of Internet Protocol Numbers,
      and will work closely with the IANA to ensure the efficient management
      of the remaining IPv4 address space.
      RIR Statistics:
      APNIC 	http://www.apnic.net/info/reports/index.html
      ARIN 		http://www.arin.net/statistics/index.html
      LACNIC	http://www.lacnic.net/en/est.html
      RIPE NCC
      Raw Data/Historical RIR Allocations:
      The Internet Number Resource Status Report, prepared jointly by the four
      RIRs, provides up-to-date statistics on rates of IPv4 allocation. This
      presentation is available at:
      Paul Rendek
      Head of Member Services and Communications
      RIPE NCC
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