Internet porn still has some competition:
[O]ver the past 13 years, a little-known Philadelphia company called PrimeTel Communications has quietly gained control over nearly a quarter of all the 1-800 numbers in the U.S. and Canada, often by grabbing them the moment they are relinquished by previous users. As of March, it administered more 800 numbers that any other company, including Verizon and AT&T. And many, if not most, of those 1.7 million numbers appear to be used for one thing: redirecting callers to a phone-sex service.
“I guess enough people go for it that it makes business sense,” said Aelea Christofferson, president of ATL Communications, another company that specializes in toll-free services. Capturing callers who have reached the wrong number — whether because they punched an incorrect digit or dialed a number without realizing it had changed hands — is a “big new industry,” she said.