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common checks performed when passing on an IPv4 PA allocation from one end-customer to another

In general, are there any other similar databases to DNSBL(used for
fighting against spam) system? For example lets say that some
institution holds a public database of IP addresses of web-servers
which (regularly) serve malware and anyone can check if their IP
addresses are listed there. Or for example public database of IP
addresses of botnet members. The reason I ask is the same- I would
like to be 100% sure that when I hand out a range of IPv4 addresses,
which were previously used by some other customer, then those
addresses were not abused in any way and new customer will not have
any trouble with those addresses.


On Tue, Apr 28, 2015 at 4:23 PM, Martin T <m4rtntns at gmail.com> wrote:
> Colin,
> this is a good idea, but in this case the network I am interested in
> does not have a RIPE Atlas probe.
> regards,
> Martin
> On 4/28/15, Colin Johnston <colinj at gt86car.org.uk> wrote:
>>> On 28 Apr 2015, at 10:32, Martin T <m4rtntns at gmail.com> wrote:
>>> Hi,
>>> as far as I know, some large US Internet companies like Google,
>>> Facebook or Amazon restrict access to some services for certain
>>> regions like Crimea or countries like Iran or North Korea. Do they
>>> rely on services like MaxMind? Or do they use some other method to
>>> check the geographical location of IP address? If yes, then is there
>>> an API to check if an address is allowed to use Google, Facebook, etc
>>> services or not?
>> you could use ripe atlas selecting nodes in countries you require and
>> destination facbook/google/amazon servers and check results
>> Colin