If you want quicker response, contact Equifax and Trans Union directly. The national credit reporting agencies, Equifax, Trans Union, and Experian recently joined together and established a single toll free telephone number for consumers to use in opting out of all three of their national databases. For American Express card holders, ask AMEX to remove your name from its direct marketing lists. You can be removed from in-house lists, outside company lists, or both. For all others, call or write to the customer service office for each credit card you own asking them not to sell, trade or lend your name and address to any organization for its mailing lists.
Many organizations use phone books as their national database.
You may consider having an unlisted number, or list just your name and phone number, not your address. This is how list brokers, Credit bureaus and others get your name in the first place. You might consider not filing a change of address when you move. Instead, send out your own postcards to those whose you want to receive, and ask the post office to hold your mail for pickup everyone knows your new address. Most warranty cards request demographic information which is used to add your name to various organizations' mailing lists.