MTA is a well known United States cellular network provider which has a good number of subscribers. IF you buy MTA United States traffic package, it helps you to promote your online business to the people who are on these network. The ad server identifies the MTA cellular network server and then serves the ad on it so that it is visible to everyone who uses it. They have a good chance of clicking on the ad link and this brings them to your advertised website. This is how the MTA United States traffic package helps in promoting your business to more people.