On Tue, Jun 10, 2014 at 12:57 AM, Robert Drake <rdrake@direcpath.com> wrote:
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My guess is one of two things. Maybe they renumbered out of the /20 but left a VPN server up and haven't managed to migrate off it yet, but they have asked to return the block.. or, they forgot to pay their bill to ARIN and the block has been removed from whois but Qwest isn't as diligent because they're still being paid.
This brings up a good point which came to mind recently. What process(es) do folks use for cases where an address block and/or ASN seems no longer have whois info associated (eg. where authorization to use may have been revoked)? Do the RIRs have a process for notifying the community or at least the upstream providers that something has changed? Thanks for insight from the community. Tony