choof.org

Choof.org is Chris Hoofnagle's personal site. You'll find postings from the Federal Register here, interesting Washington regulation tidbits, and my newest feature, the Daily Data Marketing Wake Up Call. Enjoy.

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May 29, 2005

Intellius Selling Your Phone Number, Listed or Not

Sometimes you ask:

How did that marketer get my number? I pay extra to have an unpublished or unlisted number!

This is how--Reverse ANI. Automatic Number Identification (ANI) is similar to Caller ID (CID). ANI reveals the name, address, and phone number of the telephone subscriber when the line is used to call a toll-free (800, 888), charge (900, 976), or police phone number (911). Unlike CID, a caller cannot block ANI.

So, even if you go to the trouble of paying to have your number unlisted and unpublished, all you have to do is call a single 800 number, and the business you call gets your info and can sell it to whomever they please.

reverseani.gif

Posted by chris at May 29, 2005 10:20 PM

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