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<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:black">Hello everyone,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:black">I'm a researcher from Lancaster University (UK) studying the IPv4 transfer market, and I'm trying to correlate IPv4 transfers with BGP routing dynamics. I've collected the reported
transfers but they list only owner organizations names and not AS numbers (ASN). Same with the reported transfers of other RIRs.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:black">I tried to map the organization names to ASNs using WHOIS but I couldn¡¯t find a match for about 50% of the organizations involved in transfers. What is the rationale behind not listing
the AS number? Is it because organizations without an ASN (e.g. enterprise networks) can obtain an address?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:black">Is there a suggested way of mapping the organizations to ASNs besides WHOIS lookup?<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:black">Thank you and best wishes for 2020!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:black">Vasileios Giotsas<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Arial",sans-serif;color:black">Lecturer<br>
School of Computing and Communications<br>
Lancaster University<br>
</span><span style="font-family:"Segoe UI Symbol",sans-serif;color:black">¢Ï</span><span style="font-family:"Arial",sans-serif;color:black"> 01524 595130<br>
<a href="https://bit.ly/LancsGiotsas" target="_blank"><span style="font-family:"Calibri",sans-serif;color:black;text-decoration:none">https://bit.ly/LancsGiotsas</span></a><o:p></o:p></span></p>
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