Re: 2009 IPv4 Address Use Report

[Jeroen van Aart <jeroen () mompl net>]

Iljitsch van Beijnum wrote:
> [ (Non-cross)posted to NANOG, PPML, RIPE IPv6 wg, Dutch IPv6 TF. Web version for the monospace font impaired and with 
> some links:
> http://www.bgpexpert.com/addrspace2009.php ]
>
> 2009 IPv4 Address Use Report
>
> As of January first, 2010, the number of unused IPv4 addresses is 722.18 million. On January 1, 2009, this was 925.58 
> million. So in 2009, 203.4 million addresses were used up. This is the first time since the introduction of CIDR in 
> 1993 that the number of addresses used in a year has topped 200 million. With 3706.65 million usable addresses, 80.5% 
> of the available IPv4 addresses are now in some kind of use, up from 75.3% a year ago. So the depletion of the IPv4 
> address reserves is continuing in much the same way as in previous years:
>
> Date         Addresses free   Used up
> 2006-01-01      1468.61 M
> 2007-01-01      1300.65 M    167.96 M
> 2008-01-01      1122.85 M    177.80 M (with return of 16.78 M to IANA)
> 2009-01-01       925.58 M    197.27 M
> 2010-01-01       722.18 M    203.40 M
>
> These figures are derived from from the Internet Assigned Numbers Authority's IANA IPv4 Address Space Registry page and 
> the records published on the FTP servers of the five Regional Internet Registries (RIRs): AfriNIC, which gives out address 
> space in Africa, APNIC (Asia-Pacific region), ARIN (North America), LACNIC (Latin American and the Caribbean) and the RIPE 
> NCC (Europe, the former Soviet Union and the Middle East).
>
> The IANA list shows the status of all 256 blocks of 16777216 addresses identified by the first 8-bit number in the IPv4 
> address.
> http://www.bgpexpert.com/ianaglobalpool.php is a graphical representation of the IANA global pool (updated weekly). The 
> RIR data indicates how much address space the RIRs have delegated to internet service providers (and sometimes 
> end-users). The changes over the course of 2009 are as follows:

Interesting statistics.

It'd be interesting to know what % of newly assigned addresses are used 
for fraudulent and illegal purposes such as spam and scamming (how soon 
and how frequently will the newly assigned 1.1.1.0/8 block start 
appearing in block lists and spam reports?).