When Viral Marketing Goes Too Far

A couple of years ago, our local newspaper, The Philadelphia Inquirer, ran a disturbing story about how a mortgage loan company in Phoenix had sent spam advertising messages which appeared on the screens of thousands of wireless phone customers. Not only were the messages not requested, but these customers had to pay to retrieve them.

In the United States, phone numbers are allocated to wireless companies in blocks of 9,999, all beginning with the same three-digit prefix following the area code.

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