Question: the national do not mail list?
Answer: To opt out for five years: Call toll-free 1-888-5-OPT-OUT (1-888-567-8688) or visit www.optoutprescreen.com. ... 
To opt out permanently: You may begin the permanent Opt-Out process online at www.optoutprescreen.com. ... 
Experian. ... 
TransUnion. ... 
Equifax, Inc. ... 
Innovis Consumer Assistance.