According to Attorney General's office in the State of Pennsylvania
Registration on the Do Not Call list is only valid for five years from the date you initially register, or when a telephone number is no longer valid. For example.if you were among the first group of registrants in 2002, you must re-register by September 15, 2007, or your number will be dropped from the Do Not Call list on November 1, 2007.
Learn more at the Attorney General's website.
The AG is Tom Corbett.
