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<p>Yeah it could be, but I would say that alone is already something
that can bring attention to resources because it is not what is
widely expected. I would easily believe that a fair amount of
space announce by other ASNs other than the one linked to it in
the whois may not be what was desired or justified at the same
resources were allocated. There are valid examples as you
mentioned, but I would say they are the fewer.</p>
<p>I think the most important in this context is find out if the
resources are being use in Africa or not which it is slightly more
complex to asses than matching with whois data.</p>
<p>Fernando</p>
<div class="moz-cite-prefix">On 10/15/2025 9:24 AM, Andrew Alston
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAD52VQ3xi8-7Cdrf=ZuFKsrJ_6sgFofXJ_VWyQJw3FK-PpcX-w@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">Hi Fernando,
<div><br>
</div>
<div>It's unfortunately extremely difficult to do this - because
while an ASN may be allocated by AfriNIC it could be announced
from anywhere, and even in the case of where an ASN is
allocated by RIPE, it may be used in Africa to announce
AfriNIC space (Liquid Telecom is an example of this, where
30844 is a RIPE ASN but almost all the space under it is
afrinic allocated and announced in Africa).</div>
<div><br>
</div>
<div>It would be possible to extend the code I wrote to show the
source ASN of the prefix's that are reserved - and then
potentially to match that against other AfriNIC data to show
who the ASN is owned by (if the ASN itself is allocated, in my
verification I found that many of these prefix's are being
announced by ASN's that are marked as available or reserved)</div>
<div><br>
</div>
<div>I will see what I can do about adding that extra code at
some point when I find the time.</div>
<div><br>
</div>
<div>Thanks</div>
<div><br>
</div>
<div>Andrew</div>
<div><br>
</div>
</div>
<br>
<div class="gmail_quote gmail_quote_container">
<div dir="ltr" class="gmail_attr">On Wed, Oct 15, 2025 at
3:14 PM Fernando Frediani <<a
href="mailto:fhfrediani@gmail.com" moz-do-not-send="true"
class="moz-txt-link-freetext">fhfrediani@gmail.com</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div>
<p>Would it be possible to get detailed information about
AfriNic prefixes that are currently being announced by
different ASNs they are linked to and potentially being
used out of the Africa region as well ? That would be a
pretty interesting information to see.</p>
<p>Regards<br>
Fernando</p>
<div>On 10/15/2025 8:40 AM, Andrew Alston wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hi Guys,
<div><br>
</div>
<div>So - Firstly a few notes on using the code I'm
going to paste below.</div>
<div><br>
</div>
<div>I created the BGP dump file on a juniper router by
running a "show route protocol bgp | save
bgp.dump.txt" and then copying that dump file to my
local system from the Juniper router. Note - this
produces a roughly 400meg file on a full table router
and it takes quite a while to run the command.</div>
<div>Then - I used the delegated-afrinic-extended-latest
file downloaded from the stats ftp server.</div>
<div><br>
</div>
<div>In the code below - if you wish to run similar -
change the char BGP_DUMP[256] and char
AFRINIC_EXT[256] global variables to match the pathing
to the relevant files.</div>
<div><br>
</div>
<div>Note that there is some weirdness in this code to
deal with endianness - and I will openly admit its not
the cleanest (or probably most efficient) code - but
it does work and I've verified the results.</div>
<div><br>
</div>
<div>I've pasted the code below the results section.</div>
<div><br>
</div>
<div>So - first the results:</div>
<div><br>
</div>
<div>Found 824064 total available addresses and 4482304
total reserved addresses<br>
<a href="http://41.57.124.0/22" target="_blank"
moz-do-not-send="true">41.57.124.0/22</a> fell
between reserved range 41.57.124.0 -> 41.57.127.255
[Adding 1024 addresses to potential hijack]<br>
<a href="http://41.57.124.0/23" target="_blank"
moz-do-not-send="true">41.57.124.0/23</a> fell
between reserved range 41.57.124.0 -> 41.57.127.255
[Adding 512 addresses to potential hijack]<br>
<a href="http://41.57.124.0/24" target="_blank"
moz-do-not-send="true">41.57.124.0/24</a> fell
between reserved range 41.57.124.0 -> 41.57.127.255
[Adding 256 addresses to potential hijack]<br>
<a href="http://41.57.125.0/24" target="_blank"
moz-do-not-send="true">41.57.125.0/24</a> fell
between reserved range 41.57.124.0 -> 41.57.127.255
[Adding 256 addresses to potential hijack]<br>
<a href="http://41.57.126.0/24" target="_blank"
moz-do-not-send="true">41.57.126.0/24</a> fell
between reserved range 41.57.124.0 -> 41.57.127.255
[Adding 256 addresses to potential hijack]<br>
<a href="http://41.57.127.0/24" target="_blank"
moz-do-not-send="true">41.57.127.0/24</a> fell
between reserved range 41.57.124.0 -> 41.57.127.255
[Adding 256 addresses to potential hijack]<br>
<a href="http://41.77.64.0/21" target="_blank"
moz-do-not-send="true">41.77.64.0/21</a> fell
between reserved range 41.77.64.0 -> 41.77.71.255
[Adding 2048 addresses to potential hijack]<br>
<a href="http://41.138.192.0/24" target="_blank"
moz-do-not-send="true">41.138.192.0/24</a> fell
between reserved range 41.138.192.0 ->
41.138.223.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.224.0/24" target="_blank"
moz-do-not-send="true">41.204.224.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.225.0/24" target="_blank"
moz-do-not-send="true">41.204.225.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.226.0/24" target="_blank"
moz-do-not-send="true">41.204.226.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.227.0/24" target="_blank"
moz-do-not-send="true">41.204.227.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.228.0/24" target="_blank"
moz-do-not-send="true">41.204.228.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.229.0/24" target="_blank"
moz-do-not-send="true">41.204.229.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.230.0/24" target="_blank"
moz-do-not-send="true">41.204.230.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.231.0/24" target="_blank"
moz-do-not-send="true">41.204.231.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.232.0/24" target="_blank"
moz-do-not-send="true">41.204.232.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.233.0/24" target="_blank"
moz-do-not-send="true">41.204.233.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.234.0/24" target="_blank"
moz-do-not-send="true">41.204.234.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.235.0/24" target="_blank"
moz-do-not-send="true">41.204.235.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.236.0/24" target="_blank"
moz-do-not-send="true">41.204.236.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.237.0/24" target="_blank"
moz-do-not-send="true">41.204.237.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.238.0/24" target="_blank"
moz-do-not-send="true">41.204.238.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.239.0/24" target="_blank"
moz-do-not-send="true">41.204.239.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.240.0/24" target="_blank"
moz-do-not-send="true">41.204.240.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.241.0/24" target="_blank"
moz-do-not-send="true">41.204.241.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.242.0/24" target="_blank"
moz-do-not-send="true">41.204.242.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.243.0/24" target="_blank"
moz-do-not-send="true">41.204.243.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.244.0/24" target="_blank"
moz-do-not-send="true">41.204.244.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.245.0/24" target="_blank"
moz-do-not-send="true">41.204.245.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.246.0/24" target="_blank"
moz-do-not-send="true">41.204.246.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.247.0/24" target="_blank"
moz-do-not-send="true">41.204.247.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.248.0/24" target="_blank"
moz-do-not-send="true">41.204.248.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.249.0/24" target="_blank"
moz-do-not-send="true">41.204.249.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.250.0/24" target="_blank"
moz-do-not-send="true">41.204.250.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.251.0/24" target="_blank"
moz-do-not-send="true">41.204.251.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.254.0/24" target="_blank"
moz-do-not-send="true">41.204.254.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.204.255.0/24" target="_blank"
moz-do-not-send="true">41.204.255.0/24</a> fell
between reserved range 41.204.224.0 ->
41.204.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.205.224.0/19" target="_blank"
moz-do-not-send="true">41.205.224.0/19</a> fell
between reserved range 41.205.224.0 ->
41.205.255.255 [Adding 8192 addresses to potential
hijack]<br>
<a href="http://41.205.225.0/24" target="_blank"
moz-do-not-send="true">41.205.225.0/24</a> fell
between reserved range 41.205.224.0 ->
41.205.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.205.232.0/24" target="_blank"
moz-do-not-send="true">41.205.232.0/24</a> fell
between reserved range 41.205.224.0 ->
41.205.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.205.234.0/24" target="_blank"
moz-do-not-send="true">41.205.234.0/24</a> fell
between reserved range 41.205.224.0 ->
41.205.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.205.235.0/24" target="_blank"
moz-do-not-send="true">41.205.235.0/24</a> fell
between reserved range 41.205.224.0 ->
41.205.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.205.237.0/24" target="_blank"
moz-do-not-send="true">41.205.237.0/24</a> fell
between reserved range 41.205.224.0 ->
41.205.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.205.238.0/24" target="_blank"
moz-do-not-send="true">41.205.238.0/24</a> fell
between reserved range 41.205.224.0 ->
41.205.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.205.239.0/24" target="_blank"
moz-do-not-send="true">41.205.239.0/24</a> fell
between reserved range 41.205.224.0 ->
41.205.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://41.220.48.0/20" target="_blank"
moz-do-not-send="true">41.220.48.0/20</a> fell
between reserved range 41.220.48.0 -> 41.220.63.255
[Adding 4096 addresses to potential hijack]<br>
<a href="http://80.88.6.0/24" target="_blank"
moz-do-not-send="true">80.88.6.0/24</a> fell between
reserved range 80.88.6.0 -> 80.88.6.255 [Adding 256
addresses to potential hijack]<br>
<a href="http://102.128.74.0/24" target="_blank"
moz-do-not-send="true">102.128.74.0/24</a> fell
between reserved range 102.128.72.0 ->
102.128.75.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://102.135.164.0/24" target="_blank"
moz-do-not-send="true">102.135.164.0/24</a> fell
between reserved range 102.135.164.0 ->
102.135.167.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://102.135.165.0/24" target="_blank"
moz-do-not-send="true">102.135.165.0/24</a> fell
between reserved range 102.135.164.0 ->
102.135.167.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://102.135.166.0/24" target="_blank"
moz-do-not-send="true">102.135.166.0/24</a> fell
between reserved range 102.135.164.0 ->
102.135.167.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://102.219.128.0/24" target="_blank"
moz-do-not-send="true">102.219.128.0/24</a> fell
between reserved range 102.219.128.0 ->
102.219.131.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://102.219.129.0/24" target="_blank"
moz-do-not-send="true">102.219.129.0/24</a> fell
between reserved range 102.219.128.0 ->
102.219.131.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://102.219.130.0/24" target="_blank"
moz-do-not-send="true">102.219.130.0/24</a> fell
between reserved range 102.219.128.0 ->
102.219.131.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://102.221.148.0/22" target="_blank"
moz-do-not-send="true">102.221.148.0/22</a> fell
between reserved range 102.221.144.0 ->
102.221.151.255 [Adding 1024 addresses to potential
hijack]<br>
<a href="http://156.0.254.0/24" target="_blank"
moz-do-not-send="true">156.0.254.0/24</a> fell
between reserved range 156.0.254.0 -> 156.0.254.255
[Adding 256 addresses to potential hijack]<br>
<a href="http://160.119.208.0/24" target="_blank"
moz-do-not-send="true">160.119.208.0/24</a> fell
between reserved range 160.119.208.0 ->
160.119.211.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://160.119.209.0/24" target="_blank"
moz-do-not-send="true">160.119.209.0/24</a> fell
between reserved range 160.119.208.0 ->
160.119.211.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://164.160.192.0/21" target="_blank"
moz-do-not-send="true">164.160.192.0/21</a> fell
between reserved range 164.160.192.0 ->
164.160.223.255 [Adding 2048 addresses to potential
hijack]<br>
<a href="http://169.255.164.0/22" target="_blank"
moz-do-not-send="true">169.255.164.0/22</a> fell
between reserved range 169.255.164.0 ->
169.255.167.255 [Adding 1024 addresses to potential
hijack]<br>
<a href="http://193.188.7.0/24" target="_blank"
moz-do-not-send="true">193.188.7.0/24</a> fell
between reserved range 193.188.7.0 -> 193.188.7.255
[Adding 256 addresses to potential hijack]<br>
<a href="http://196.13.203.0/24" target="_blank"
moz-do-not-send="true">196.13.203.0/24</a> fell
between reserved range 196.13.203.0 ->
196.13.203.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://196.20.60.0/24" target="_blank"
moz-do-not-send="true">196.20.60.0/24</a> fell
between reserved range 196.20.32.0 -> 196.20.63.255
[Adding 256 addresses to potential hijack]<br>
<a href="http://196.20.61.0/24" target="_blank"
moz-do-not-send="true">196.20.61.0/24</a> fell
between reserved range 196.20.32.0 -> 196.20.63.255
[Adding 256 addresses to potential hijack]<br>
<a href="http://196.20.62.0/24" target="_blank"
moz-do-not-send="true">196.20.62.0/24</a> fell
between reserved range 196.20.32.0 -> 196.20.63.255
[Adding 256 addresses to potential hijack]<br>
<a href="http://196.41.74.0/24" target="_blank"
moz-do-not-send="true">196.41.74.0/24</a> fell
between reserved range 196.41.74.0 -> 196.41.74.255
[Adding 256 addresses to potential hijack]<br>
<a href="http://196.43.252.0/24" target="_blank"
moz-do-not-send="true">196.43.252.0/24</a> fell
between reserved range 196.43.252.0 ->
196.43.252.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://196.46.18.0/24" target="_blank"
moz-do-not-send="true">196.46.18.0/24</a> fell
between reserved range 196.46.18.0 -> 196.46.19.255
[Adding 256 addresses to potential hijack]<br>
<a href="http://196.46.19.0/24" target="_blank"
moz-do-not-send="true">196.46.19.0/24</a> fell
between reserved range 196.46.18.0 -> 196.46.19.255
[Adding 256 addresses to potential hijack]<br>
<a href="http://196.46.152.0/24" target="_blank"
moz-do-not-send="true">196.46.152.0/24</a> fell
between reserved range 196.46.152.0 ->
196.46.159.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://196.46.153.0/24" target="_blank"
moz-do-not-send="true">196.46.153.0/24</a> fell
between reserved range 196.46.152.0 ->
196.46.159.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://196.46.154.0/23" target="_blank"
moz-do-not-send="true">196.46.154.0/23</a> fell
between reserved range 196.46.152.0 ->
196.46.159.255 [Adding 512 addresses to potential
hijack]<br>
<a href="http://196.50.21.0/24" target="_blank"
moz-do-not-send="true">196.50.21.0/24</a> fell
between reserved range 196.50.21.0 -> 196.50.21.255
[Adding 256 addresses to potential hijack]<br>
<a href="http://196.53.113.0/24" target="_blank"
moz-do-not-send="true">196.53.113.0/24</a> fell
between reserved range 196.52.0.0 -> 196.55.255.255
[Adding 256 addresses to potential hijack]<br>
<a href="http://196.54.72.0/23" target="_blank"
moz-do-not-send="true">196.54.72.0/23</a> fell
between reserved range 196.52.0.0 -> 196.55.255.255
[Adding 512 addresses to potential hijack]<br>
<a href="http://196.55.102.0/23" target="_blank"
moz-do-not-send="true">196.55.102.0/23</a> fell
between reserved range 196.52.0.0 -> 196.55.255.255
[Adding 512 addresses to potential hijack]<br>
<a href="http://196.63.243.0/24" target="_blank"
moz-do-not-send="true">196.63.243.0/24</a> fell
between reserved range 196.62.0.0 -> 196.63.255.255
[Adding 256 addresses to potential hijack]<br>
<a href="http://196.195.4.0/24" target="_blank"
moz-do-not-send="true">196.195.4.0/24</a> fell
between reserved range 196.194.0.0 ->
196.195.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://196.195.15.0/24" target="_blank"
moz-do-not-send="true">196.195.15.0/24</a> fell
between reserved range 196.194.0.0 ->
196.195.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://196.195.253.0/24" target="_blank"
moz-do-not-send="true">196.195.253.0/24</a> fell
between reserved range 196.194.0.0 ->
196.195.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://197.157.200.0/22" target="_blank"
moz-do-not-send="true">197.157.200.0/22</a> fell
between reserved range 197.157.200.0 ->
197.157.203.255 [Adding 1024 addresses to potential
hijack]<br>
<a href="http://197.231.248.0/22" target="_blank"
moz-do-not-send="true">197.231.248.0/22</a> fell
between reserved range 197.231.248.0 ->
197.231.251.255 [Adding 1024 addresses to potential
hijack]<br>
<a href="http://197.231.248.0/24" target="_blank"
moz-do-not-send="true">197.231.248.0/24</a> fell
between reserved range 197.231.248.0 ->
197.231.251.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://197.231.249.0/24" target="_blank"
moz-do-not-send="true">197.231.249.0/24</a> fell
between reserved range 197.231.248.0 ->
197.231.251.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://197.231.250.0/24" target="_blank"
moz-do-not-send="true">197.231.250.0/24</a> fell
between reserved range 197.231.248.0 ->
197.231.251.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://197.231.251.0/24" target="_blank"
moz-do-not-send="true">197.231.251.0/24</a> fell
between reserved range 197.231.248.0 ->
197.231.251.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://197.234.208.0/24" target="_blank"
moz-do-not-send="true">197.234.208.0/24</a> fell
between reserved range 197.234.208.0 ->
197.234.215.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.224.0/24" target="_blank"
moz-do-not-send="true">212.12.224.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.225.0/24" target="_blank"
moz-do-not-send="true">212.12.225.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.226.0/24" target="_blank"
moz-do-not-send="true">212.12.226.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.227.0/24" target="_blank"
moz-do-not-send="true">212.12.227.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.229.0/24" target="_blank"
moz-do-not-send="true">212.12.229.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.231.0/24" target="_blank"
moz-do-not-send="true">212.12.231.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.232.0/24" target="_blank"
moz-do-not-send="true">212.12.232.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.233.0/24" target="_blank"
moz-do-not-send="true">212.12.233.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.234.0/24" target="_blank"
moz-do-not-send="true">212.12.234.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.235.0/24" target="_blank"
moz-do-not-send="true">212.12.235.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.236.0/24" target="_blank"
moz-do-not-send="true">212.12.236.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.237.0/24" target="_blank"
moz-do-not-send="true">212.12.237.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.238.0/24" target="_blank"
moz-do-not-send="true">212.12.238.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.239.0/24" target="_blank"
moz-do-not-send="true">212.12.239.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.240.0/24" target="_blank"
moz-do-not-send="true">212.12.240.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.241.0/24" target="_blank"
moz-do-not-send="true">212.12.241.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.242.0/24" target="_blank"
moz-do-not-send="true">212.12.242.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.243.0/24" target="_blank"
moz-do-not-send="true">212.12.243.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.244.0/24" target="_blank"
moz-do-not-send="true">212.12.244.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.245.0/24" target="_blank"
moz-do-not-send="true">212.12.245.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.246.0/24" target="_blank"
moz-do-not-send="true">212.12.246.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.247.0/24" target="_blank"
moz-do-not-send="true">212.12.247.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.248.0/24" target="_blank"
moz-do-not-send="true">212.12.248.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.249.0/24" target="_blank"
moz-do-not-send="true">212.12.249.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.250.0/24" target="_blank"
moz-do-not-send="true">212.12.250.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.251.0/24" target="_blank"
moz-do-not-send="true">212.12.251.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.252.0/24" target="_blank"
moz-do-not-send="true">212.12.252.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.254.0/24" target="_blank"
moz-do-not-send="true">212.12.254.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
<a href="http://212.12.255.0/24" target="_blank"
moz-do-not-send="true">212.12.255.0/24</a> fell
between reserved range 212.12.224.0 ->
212.12.255.255 [Adding 256 addresses to potential
hijack]<br>
Found 50176 potentially hijacked addresses</div>
<div><br>
</div>
<div>--- Below here is the code (I didn't know if I
could send attachments to the RPD list so I just
pasted the code straight) ---</div>
<div><br>
</div>
<div>//<br>
// main.c<br>
// AfrinicAudit<br>
//<br>
// Created by Andrew Alston on 15/10/2025.<br>
// Code is considered open use with no restrictions.<br>
//<br>
<br>
#include <stdlib.h><br>
#include <stdio.h><br>
#include <string.h><br>
#include <arpa/inet.h><br>
<br>
char BGP_DUMP[256] =
"/Users/aalston/audit/bgp.dump.txt";<br>
char AFRINIC_EXT[256] =
"/Users/aalston/audit/delegated-afrinic-extended-latest";<br>
<br>
struct routes {<br>
unsigned int network;<br>
unsigned int broadcast;<br>
unsigned int mask;<br>
unsigned short cidr;<br>
};<br>
<br>
struct audit {<br>
struct routes *dfz;<br>
int dfz_count;<br>
struct routes *reserved;<br>
int total_resv;<br>
int rc;<br>
struct routes *available;<br>
int total_avail;<br>
int ac;<br>
};<br>
<br>
int parse_afrinic_extended(char *afext, struct audit
*output) {<br>
FILE *dump = fopen(afext, "r");<br>
if(!dump)<br>
return -1;<br>
char buffer[1024] = {0};<br>
char *delim;<br>
output->rc = 0;<br>
while(fgets(buffer, 1024, dump)) {<br>
if(strstr(buffer, "ZZ") &&
strstr(buffer, "reserved") && strstr(buffer,
"ipv4")) {<br>
output->rc++;<br>
}<br>
}<br>
output->reserved = calloc(output->rc,
sizeof(struct routes));<br>
if(!output->reserved)<br>
return -1;<br>
output->rc = 0;<br>
struct routes *resv = output->reserved;<br>
rewind(dump);<br>
while(fgets(buffer, 1024, dump)) {<br>
if(strstr(buffer, "ZZ") &&
strstr(buffer, "reserved") && strstr(buffer,
"ipv4")) {<br>
delim = strtok(buffer, "|");<br>
for(int i = 0; i < 3; i++)<br>
delim = strtok(NULL, "|");<br>
inet_pton(AF_INET, delim,
&resv[output->rc].network);<br>
resv[output->rc].network =
__builtin_bswap32(resv[output->rc].network);<br>
delim = strtok(NULL, "|");<br>
unsigned int addr_count = atoi(delim);<br>
output->total_resv += addr_count;<br>
resv[output->rc].broadcast =
resv[output->rc].network+(addr_count-1);<br>
resv[output->rc].network =
__builtin_bswap32(resv[output->rc].network);<br>
resv[output->rc].broadcast =
__builtin_bswap32(resv[output->rc].broadcast);<br>
resv[output->rc].mask =
~__builtin_bswap32((unsigned int)addr_count-1);<br>
output->rc++;<br>
}<br>
}<br>
rewind(dump);<br>
while(fgets(buffer, 1024, dump)) {<br>
if(strstr(buffer, "ZZ") &&
strstr(buffer, "available") && strstr(buffer,
"ipv4")) {<br>
output->ac++;<br>
}<br>
}<br>
output->available = calloc(output->ac,
sizeof(struct routes));<br>
if(!output->available)<br>
return -1;<br>
struct routes *avail = output->available;<br>
rewind(dump);<br>
while(fgets(buffer, 1024, dump)) {<br>
if(strstr(buffer, "ZZ") &&
strstr(buffer, "available") && strstr(buffer,
"ipv4")) {<br>
delim = strtok(buffer, "|");<br>
for(int i = 0; i < 3; i++)<br>
delim = strtok(NULL, "|");<br>
inet_pton(AF_INET, delim,
&avail[output->ac].network);<br>
avail[output->ac].network =
__builtin_bswap32(avail[output->ac].network);<br>
delim = strtok(NULL, "|");<br>
unsigned int addr_count = atoi(delim);<br>
output->total_avail += addr_count;<br>
avail[output->ac].broadcast =
avail[output->ac].network+(addr_count-1);<br>
avail[output->ac].mask =
~__builtin_bswap32((unsigned int)addr_count-1);<br>
output->ac++;<br>
}<br>
}<br>
fclose(dump);<br>
return 0;<br>
}<br>
<br>
int parse_dfz(char *dfz_dump, struct audit *output) {<br>
FILE *dump = fopen(dfz_dump, "r");<br>
char buffer[1024] = {0};<br>
int rc = 0, mult = 0, cidr = 0;<br>
char *delim;<br>
if(!dump) {<br>
return -1;<br>
}<br>
while(fgets(buffer, 1024, dump)) {<br>
if(buffer[0] >= '1' && buffer[0]
<= '9' && strtok(buffer, "/") &&
strchr(buffer, '.')) {<br>
rc++;<br>
}<br>
}<br>
output->dfz = calloc(rc, sizeof(struct
routes));<br>
output->dfz_count = rc;<br>
if(!output->dfz) {<br>
return -1;<br>
}<br>
rewind(dump);<br>
rc = 0;<br>
while(fgets(buffer, 1024, dump)) {<br>
if(buffer[0] >= '1' && buffer[0]
<= '9') {<br>
cidr = 0;<br>
delim = strtok(buffer, "/");<br>
delim = strtok(NULL, "/");<br>
if(!delim) {<br>
memset(buffer, 0, 1024);<br>
continue;<br>
}<br>
mult = 1;<br>
for(int i = 0; i < 3; i++) {<br>
if(delim[i] >= '0' &&
delim[i] <= '9') {<br>
cidr = cidr *
mult+(9-('9'-delim[i]));<br>
mult*=10;<br>
}<br>
}<br>
delim = strchr(buffer, '.');<br>
if(!delim) {<br>
memset(buffer, 0, 1024);<br>
continue;<br>
}<br>
output->dfz[rc].cidr = cidr;<br>
inet_pton(AF_INET, buffer,
&output->dfz[rc].network);<br>
output->dfz[rc].cidr = cidr;<br>
output->dfz[rc].network =
__builtin_bswap32((unsigned
int)output->dfz[rc].network);<br>
output->dfz[rc].mask = (~(unsigned
int)0) << (32-cidr);<br>
output->dfz[rc].broadcast =
output->dfz[rc].network + ((~(unsigned int)0)
>> cidr);<br>
output->dfz[rc].network =
__builtin_bswap32((unsigned
int)output->dfz[rc].network);<br>
output->dfz[rc].broadcast =
__builtin_bswap32((unsigned
int)output->dfz[rc].broadcast);<br>
rc++;<br>
memset(buffer, 0, 1024);<br>
}<br>
}<br>
fclose(dump);<br>
return 0;<br>
}<br>
<br>
int audit_reserved(struct audit *data) {<br>
int hijack_count = 0;<br>
for(int i = 0; i < data->dfz_count; i++) {<br>
unsigned int dfz_net =
__builtin_bswap32((unsigned
int)data->dfz[i].network);<br>
unsigned int dfz_bcast =
__builtin_bswap32((unsigned
int)data->dfz[i].broadcast);<br>
for(int r = 0; r < data->rc; r++) {<br>
unsigned int resv_net =
__builtin_bswap32((unsigned
int)data->reserved[r].network);<br>
unsigned int resv_bcast =
__builtin_bswap32((unsigned
int)data->reserved[r].broadcast);<br>
if(dfz_net >= resv_net &&
dfz_net <= resv_bcast) {<br>
hijack_count +=
((dfz_bcast-dfz_net)+1);<br>
char dfz_route[INET_ADDRSTRLEN] = {0};<br>
char resv_network[INET_ADDRSTRLEN] =
{0};<br>
char resv_broadcast[INET_ADDRSTRLEN] =
{0};<br>
inet_ntop(AF_INET,
&data->dfz[i].network, dfz_route,
INET_ADDRSTRLEN);<br>
inet_ntop(AF_INET,
&data->reserved[r].network, resv_network,
INET_ADDRSTRLEN);<br>
inet_ntop(AF_INET,
&data->reserved[r].broadcast, resv_broadcast,
INET_ADDRSTRLEN);<br>
printf("%s/%d fell between reserved
range %s -> %s [Adding %d addresses to potential
hijack]\n",<br>
dfz_route,
data->dfz[i].cidr, resv_network, resv_broadcast,
(dfz_bcast-dfz_net)+1);<br>
}<br>
}<br>
for(int a = 0; a < data->ac; a++) {<br>
unsigned int avail_net =
__builtin_bswap32((unsigned
int)data->available[a].network);<br>
unsigned int avail_bcast =
__builtin_bswap32((unsigned
int)data->available[a].broadcast);<br>
if(dfz_net >=
data->available[a].network && dfz_net <=
data->available[a].broadcast) {<br>
hijack_count +=
((data->available[a].broadcast-data->available[a].network)+1);<br>
char dfz_route[INET_ADDRSTRLEN] = {0};<br>
char avail_network[INET_ADDRSTRLEN] =
{0};<br>
char avail_broadcast[INET_ADDRSTRLEN]
= {0};<br>
inet_ntop(AF_INET,
&data->dfz[i].network, dfz_route,
INET_ADDRSTRLEN);<br>
inet_ntop(AF_INET, &avail_net,
avail_network, INET_ADDRSTRLEN);<br>
inet_ntop(AF_INET, &avail_bcast,
avail_broadcast, INET_ADDRSTRLEN);<br>
printf("%s/%d fell between available
range %s -> %s\n", dfz_route, data->dfz[i].cidr,
avail_network, avail_broadcast);<br>
}<br>
}<br>
}<br>
printf("Found %d potentially hijacked
addresses\n", hijack_count);<br>
return 0;<br>
}<br>
<br>
int main(int argc, const char * argv[]) {<br>
struct audit data = {0};<br>
if(parse_dfz(BGP_DUMP, &data))<br>
return EXIT_FAILURE;<br>
if(parse_afrinic_extended(AFRINIC_EXT, &data))<br>
return EXIT_FAILURE;<br>
printf("Found %d total available addresses and %d
total reserved addresses\n", data.total_avail,
data.total_resv);<br>
audit_reserved(&data);<br>
return EXIT_SUCCESS;<br>
}<br>
</div>
</div>
<br>
<fieldset></fieldset>
<pre>_______________________________________________
RPD mailing list
<a href="mailto:RPD@afrinic.net" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">RPD@afrinic.net</a>
<a href="https://lists.afrinic.net/mailman/listinfo/rpd" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">https://lists.afrinic.net/mailman/listinfo/rpd</a>
</pre>
</blockquote>
</div>
_______________________________________________<br>
RPD mailing list<br>
<a href="mailto:RPD@afrinic.net" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">RPD@afrinic.net</a><br>
<a href="https://lists.afrinic.net/mailman/listinfo/rpd"
rel="noreferrer" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://lists.afrinic.net/mailman/listinfo/rpd</a><br>
</blockquote>
</div>
</blockquote>
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