AT&T announced this morning that it's serving up a hearty side of 4G LTE coverage to customers in several parts of the U.S. The big blue carrier has rolled its LTE network out to a handful of new markets in various parts of the country, and there are also a few locations that are receiving some expanded coverage. Here's the list of areas announced by AT&T so far today:

New markets

• Tucson, Ariz.
• Melbourne, Fla.
• Springfield, Mass.
• Green Bay, Wis.

Expanded markets

• Phoenix, Ariz.
• Los Angeles, Calif.

This is the latest in a string of recent 4G LTE expansions from AT&T and is the fourth time that the network has grown this month. It remains to be seen whether or not AT&T's got any more LTE expansions planned for December, but considering how frequently we've seen the operator roll out new service lately, it's certainly a possibility that AT&T could sneak a few more cities in before 2012 wraps up. We'll be sure to give you a shout if it does. So, any of you AT&T folk located in one of the towns listed above? If so, how's the new/expanded LTE service treating you on this fine Tuesday morning?

UPDATE: AT&T has also announced that its LTE network is now live in Oxford, Miss.

Via AT&T (1), (2), (3), (4), (5), (6), (7)