Dear Colleagues, We received several questions about the IP return statistics, hence this followup. These are the numbers of IPv4 addresses returned to the RIPE NCC from closed LIRs: (all 2008 numbers are for the year to date)
2005 385024 /14,/16,/17,/18,/19 2006 393216 /14,/15 2007 1585152 /12,/13,/19,/20 2008 1042432 /13,/14,/15,/16,/17,/18,/19,/21
That leaves these amounts returned by LIRs that are still open: 2005 1034240 /13,/14,/15,/16,/17,/18,/21 2006 761856 /13,/15,/16,/17,/19 2007 581632 /13,/17,/18,/19 2008 94208 /16,/18,/19,/20 Most of these are returned by LIRs during the evaluation an additional allocation request, usually the new allocation is larger than the one that is returned, only in a handful of cases is a smaller block requested. Taking a quick manual look through our records, the numbers below can be used as an indication of how much was returned voluntarily: 2005 294912 /14,/17 2006 108544 /16,/17,/19,/21 2007 34816 /17,/21 2008 92160 /16,/18,/19,/21 To put this in context, here are the amounts of IPs allocated in total over the last few years: 2005 57282560 /7,/8,/10,/11,/13,/15,/20 2006 59914240 /7,/8,/9,/12,/15,/19,/20,/21 2007 62181376 /7,/8,/9,/11,/12,/14,/17,/18,/20 2008 35655680 /7,/11,/20 Best regards, Alex Le Heux RIPE NCC Registrations Services