Identifying when netblocks have been assigned
stephen at sprunk.org
Sat Sep 13 14:12:19 CDT 2008
Frank Bulk wrote:
> When I do that it lists the organization's AS, but not any netblocks
> associated with that AS.
> -----Original Message-----
> From: Jake Mertel [mailto:jake at nobistech.net]
> Add the > operator in front of the organizations ARIN ID when you do
> your WHOIS query and it will show all of the resources allocated to that
Keep in mind that the "> OrgID" trick only works for allocations or
assignments made directly by ARIN; it won't necessarily show you
everything that was SWIPed to them, since many SWIPs are not tagged with
an OrgID. To find those, you have to search on the name of the customer
and hope it shows up correctly in the CustName field.
Also, many companies end up with lots of OrgIDs, and many of them may
not have the correct current name due to M&A activity. Finding them all
may take a while and isn't easily automated.
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