Hello all, I have been out of the IP field for a few years so forgive me if my question is about old news, but here it is: Is the decrease in the percentage of used IPv4 space in the United States of America due to other countries increasing their usage and/or the return of unused IPv4 space in the United States of America? Just looking at upcoming usage statistics globally. Thanks, Tanya Hinman, RN +1 919 272 1835

To: ipv6-wg@ripe.net; address-policy-wg@ripe.net> From: iljitsch@muada.com> Subject: [ipv6-wg] 2006 IPv4 Address Use Report> Date: Mon, 1 Jan 2007 17:27:08 +0100> > 2006 was another busy year for the five Regional Internet Registries: > together, they gave out 161.48 million IPv4 addresses, just shy of > the 165.45 million given out in 2005 as measured on january first 2006.> > The current (jan 1st, 2007) figure for 2005 is 175.52 million > addresses. Together with adjustments for earlier years, this brings > the total addresses available to almost exactly 1.3 billion, down > from 1468.61 million a year ago. This is out of 3706.65 million > usable IPv4 addresses, so 2407.11 million addresses are currently > given out to either end-users or Internet Service Providers.> > Breakdown by Regional Internet Registry over the past few years as > seen on 2007-01-01:> > 2000 2001 2002 2003 2004 2005 2006> > AfriNIC 0.56 0.39 0.26 0.22 0.51 1.03 2.72> APNIC 20.94 28.83 27.03 33.05 42.89 53.86 51.78> ARIN 30.83 28.55 21.08 22.32 34.26 47.57 38.94> LACNIC 0.88 1.61 0.65 2.62 3.77 10.97 11.50> RIPE NCC 24.79 25.36 19.84 29.61 47.49 62.09 56.53> > Total 78.00 84.73 68.87 87.82 128.92 175.52 161.48> > Compare this to the totals as seen on 2006-01-01:> > Total 78.35 88.95 68.93 87.77 128.45 165.45> > (See last year's report for more details at http://www.bgpexpert.com/ > addrspace2005.php )> > The main reason for the discrepancy is that the RIRs publish on their > respective FTP servers lists of which address block was given out > when. When a block of address space is given back by the holder, it's > removed from the list. This is the reason why the numbers for earlier > years keep going down. The 10 million extra addresses in 2005 and 4 > million in 2001 are the responsibility of ARIN, which went from 36.30 > million addresses for 2005 in their 2006-01-01 records to 47.56 in > their 2007-01-01 records. The reason for the retroactive growth is > unknown.> > AfriNIC gives out address space in Africa, APNIC in the Asia-Pacific > region, ARIN in North America, LACNIC in Latin American and the > Caribbean and the RIPE NCC in Europe, the former Soviet Union and the > Middle East.> > The Internet Assigned Numbers Authority (IANA, part of ICANN) keeps > an overview of the IPv4 address space at http://www.iana.org/ > assignments/ipv4-address-space. The list consists of 256 blocks of > 16.78 million addresses. Breakdown:> > Delegated to Blocks +/- 2006 Addresses (millions)> > AfriNIC 1 16.78> APNIC 19 +3 318.77> ARIN 27 +4 452.98> LACNIC 4 67.11> RIPE NCC 22 +3 369.10> Various 50 838.86> End-user 43 721.42> Available 55 -10 922.74> > Of the 2063.60 million addresses delegated to the five Regional > Internet Registries, 1685.69 million have been delegated to end-users > or ISPs by the RIRs, and 377.91 million are still available, which is > almost identical to last year's 378.09 number. Along with the 922.74 > million addresses still available in the IANA global pool this makes > the total number of available addresses 1300.65 million, down 167.96 > million from a year earlier.> > The size of address blocks given has been increasing steadily. The > table below shows the number of requests for a certain range of block > sizes (equal or higher than the first, lower than the second value).> > (2005 and earlier values from 2006-01-01 data, 2006 values from > 2007-01-01 data.)> > 2000 2001 2002 2003 2004 2005 2006> > < 1000 326 474 547 745 1022 1309 1526> 1000 - 8000 652 1176 897 1009 1516 1891 2338> 8000 - 64k 1440 868 822 1014 1100 1039 1133> 64k - 500k 354 262 163 215 404 309 409> 500k - 2M 19 39 29 46 61 60 56> > 2M 3 5 5 6 7 18 13> > The number of blocks in the two smallest categories have increased > rapidly, but not as fast as the number of blocks in the largest > category, in relative numbers at least. However, the increase in > large blocks has a very dramatic effect while the small blocks are > insignificant, when looking at the millions of addresses involved:> > 2000 2001 2002 2003 2004 2005 2006> > < 1000 0.10 0.16 0.18 0.25 0.35 0.44 0.52> 1000 - 8000 2.42 4.47 3.23 3.45 4.49 5.07 6.10> 8000 - 64k 18.79 12.81 11.35 14.00 15.99 15.46 17.17> 64k - 500k 35.98 32.19 20.28 25.51 42.01 34.23 49.64> 500k - 2M 12.68 24.64 21.30 31.98 44.63 41.63 46.64> > 2M 8.39 14.68 12.58 12.58 20.97 68.62 41.42> > The increase in the 2M+ blocks was solely responsible for the high > number of addresses given out in 2005. In 2006, there was growth in > all categories except the 2M+ one (even the 500k - 2M category > increased in number of addresses if not in number of blocks). When > the 2M+ blocks are taken out of the equation, 2005 had a total of > 96.83 million addresses (2006-01-01) and 2006 119.06 million given out.> > Another way to look at the same data:> > Year Blocks Addresses (M) Average block size> > 2000 2794 78.35 28043> 2001 2824 88.95 31497> 2002 2463 68.93 27985> 2003 3035 87.77 28921> 2004 4110 128.45 31252> 2005 4626 165.45 35765> 2006 5475 161.48 29494> > The 2407.11 million addresses currently in use aren't very evenly > distributed over the countries in the world. The current top 15 is:> > Country Addresses 2007-01-01 Addr 2006-01-01> > US 1366.53 M 1324.93 M United States> JP 151.27 M 143.00 M Japan> EU 115.83 M 113.87 M Multi-country in > Europe> CN 98.02 M 74.39 M China> GB 93.91 M 73.81 M United Kingdom> CA 71.32 M 67.43 M Canada> DE 61.59 M 51.13 M Germany> FR 58.23 M 45.16 M France> KR 51.13 M 41.91 M Korea> AU 30.64 M 26.87 M Australia> BR 19.27 M 17.17 M Brazil> IT 19.14 M 18.39 M Italy> ES 18.69 M 16.29 M Spain> TW 18.16 M 16.28 M Taiwan> NL 18.08 M 16.40 M Netherlands> > The US holds 57% (down from 60% a year ago) of the IPv4 address space > in use. The other countries in the list together hold another 34% (up > from 32%). The rest of the world has 9% (up from 8%).> > A copy of this information and a tool to perform queries on up to > date data is available at http://www.bgpexpert.com/addrspace2006.php>

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