While this isn't necessarily cpanel related, I've got a problem with some nameservers due to a server move.

When I moved servers I was told I would be able to keep my old IP address, but then my server company changed its mind. So the old IP no longer points to my server, but many of the domains that I host still reference that old IP.

Is there anything I can do to rectify this other than having every customer update their DNS records?