CIDR blocks, by country

Chris Adams cmadams at
Wed May 12 17:13:13 UTC 2010

Once upon a time, Blake Pfankuch <bpfankuch at> said:
> publishes files that can be used in some form of an RBL that covers most of this as well.  I use this for a geolocated DNS system and it works well.  I have actually manually referenced this to find where a specific block is from. 

I found that list to be out-of-date and slow to change (when errors were
pointed out).

I ended up taking the Maxmind free database and writing a perl DNS
server to feed it.  The free database is updated once a month and that
is good enough for my uses.

Chris Adams <cmadams at>
Systems and Network Administrator - HiWAAY Internet Services
I don't speak for anybody but myself - that's enough trouble.

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