said by swhx7 :

Maybe there is more information in the rest of the email?

said by Centurytel "Privacy" Policy :

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Online advertising and third-party ad servers
We may use advertising companies to deliver ads for CenturyTel-offered services and products on our Web sites or on third party Web sites. These online ads include, but are not limited to, banner ads. These online ads may contain third-party cookies or Web beacons that allow tracking of visitors' responses to our advertisements, which responses assist us in measuring the effectiveness of our ads. Although these third parties may receive anonymous Web usage information about ad viewing on such Web sites, we prohibit them from using this information in any manner contrary to the terms of this Policy.

CenturyTel partners with a third-party advertising firm to deliver or facilitate delivery of targeted online advertisements to our High Speed Internet subscribers for the purpose of providing these subscribers with a richer, more relevant Web surfing experience. By observing anonymous, non-personally identifying information regarding a subscriber's Web surfing and search behavior, the ad network can infer the subscriber's interests in certain product or service categories (e.g., automobiles/sports or travel/Europe). The third-party advertising firm can then display advertisements that are more likely to be related to a subscriber's interests. It should be noted that you will not receive any more ads than you would otherwise receive, nor will the targeted online ads you receive be any more intrusive than the standard online ads you would otherwise receive. It should also be noted that these targeted online advertisements are based on the subscriber's anonymous online surfing behavior, and no personally identifying information is collected or used to deliver these advertisements. CenturyTel's High-Speed Internet subscribers who choose not to receive targeted online advertisements can opt out at any time by clicking here or visiting »www.nebuad.com/privacy/optout.php. The opt out is accomplished through the placement of an opt out cookie and applies only to the computer and browser through which the opt out selection was made. If, after opting out, you obtain a new computer, use a different browser, or delete the opt out cookie, you must complete the opt out process again in order to maintain your opt out status. If you choose to opt out, you will continue to receive online advertisements; however, these advertisements will likely be less relevant to your interests.

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