[ppml] IPv4 Allocation stats

[Leslie Nobile]

Hi Mat-

There is actually a logical explanation for this discrepancy, and yes,
you have done the math correctly.

ARIN issued 3857 /24s in April 2003 that were actually extensions of
previously issued IP blocks.  The web stats account for every /24
allocated during the month, including the extensions.  The ftp site
automatically tracks the IPv4 allocations by the original allocation
date only and therefore, does not record the extensions in the month
that they were allocated.  The extended IP blocks will however, appear
under the date of the original allocation. 
        
If we can answer any other questions, please feel free to contact us by
sending email to hostmaster at arin.net or by sending email directly to me
at
leslie at arin.net.

 

Regards,

Leslie Nobile
Director, Registration Services
American Registry for Internet Numbers (ARIN)

 

-----Original Message-----
From: owner-ppml at arin.net [mailto:owner-ppml at arin.net] On Behalf Of
matthew.ford at bt.com
Sent: Thursday, June 19, 2003 12:53 PM
To: ppml at arin.net
Subject: [ppml] IPv4 Allocation stats

Can anyone explain to me why the ARIN IPv4 Issued statistics, e.g.
http://www.arin.net/statistics/index.html#ipv4issued2003, do not seem to
match up with the stats available from
ftp://ftp.arin.net/pub/stats/arin/arin.20030601?

For example, if you add all the allocations and assignments listed in
arin.20030601 for April 2003 you get 819,456. Dividing by 256 to get /24
equivalents gives 3,201. But
http://www.arin.net/statistics/index.html#ipv4issued2003 states 7,056
/24
equivalents were issued in April 2003.

I'm sure there's a simple explanation. So what is it? Maybe I can't do
arithmetic...

 -- Mat