<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;"><br><div><blockquote type="cite"><div><div>
<blockquote type="cite" cite="mid:EA01D18E-0367-4F5F-9CC8-791B5E60E40C@delong.com">
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<div dir="ltr">As you pointed out, there are plenty of legitimate
cases for this. For example, some ISPs will issue space to
multi-homed customers who will then originate more specifics
assigned to them from their own ASN while the covering aggregate
would be announced by the ISP, but not the more specifics. </div>
</blockquote><p>I'd like to get an idea of prevalent this really is.<br></p></div></div></blockquote><div><br></div>To what end?</div><div><br></div><div>It’s just one example of legitimate reasons that prefixes may be originated by ASNs that don’t belong to the resource holder.</div><div><br></div><div>Owen</div><div><br></div></body></html>