Hi Michael, Have you tried reaching the contacts at http://whois.arin.net/rest/poc/JMO282-ARIN.html directly?
Kind Regards, Wilson On Tue, Sep 27, 2011 at 22:21, Mike Gatti <[email protected]> wrote: > Hello Nanog Members, > > We have been having some issue doing reverse lookups for ip's in the > 12.54.94.0/23 prefix. We know that this block is assigned to AT&T and AT&T > has assigned that block to Siemens Medical (based on whois queries). We are > now trying to find out who would be the authoritative DNS server that would > resolve PTR queries for these IP addresses. Would someone from AT&T (or > Siemens) or someone that has that info please contact me offline to discuss? > > Thanks Everyone, > -- > Michael Gatti > cell.949.735.5612 > [email protected] > (UTC-8) > > > > >
