As corporate fleets across the globe have slowly transformed into a paradise for green cars, finding a company that hasn't revamped at least a portion of its vehicles over to greener technology is becoming harder and harder. Though AT&T would not be considered pioneers in the drive towards greener fleets, the company's recent commitment to cleaner vehicles shows that it's dedicated to cleaning up its act fast.

In March 2009, AT&T announced its $565 million grand plan to replace 15,000 of its 75,900 fleet vehicles with alternative fuel models by 2018. Now, AT&T has hit its first milestone by deploying its 2,000th alternative fuel vehicle and 1,500th compressed natural gas (CNG) vehicle. AT&T already lays claim to one of the largest CNG-powered fleets in the U.S., but future plans call for the addition of 8,000 more within the next five years. If Chrysler can act fast, it could grab a big chunk of that. Follow the jump for more info regarding AT&T's future plans to green-up its vehicles.