ATT Redirect

Long ago when we set up our Exchange server we had to get our ISP T-1 provider to put in a reverse lookup entry for our location. I am now faced with moving the servers to a new location and IP and need to change these entries but I cannot find the notes from the original set up and cannot seem to get anyone on the phone from ATT who knows what I am talking about!
Does anyone happen to know the web address or phone number to accomplish this?
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JP_TechGroupAsked:
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Justin DurrantSr. Engineer - Windows Server/VirtualizationCommented:
Are you switching ISPs? Getting a new public IP? The DNS reverse lookup should apply to your public IP and not the exchange servers themselves.

http://www.amset.info/exchange/dnsconfig.asp
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JP_TechGroupAuthor Commented:
Found the site by seaching for the ATT DNS tool.
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