The Federal Communications Commission is concerned about the AT&T network with Apple’s iPad. At the Apple keynote announcing its iPad tablet, it also revealed that AT&T was the carrier of choice with attractive pricing without a contract. That has the FCC worried. In a blog post last week, it wrote:

“With the iPad pointing to even greater demand for mobile broadband on the horizon, we must ensure that network congestion doesn’t choke off a service that consumers clearly find so appealing, or frustrate mobile broadband’s ability to keep us competitive in the global broadband economy.”

While it didn’t point out specifically, it’s obvious AT&T is the target here. We reported earlier that AT&T is expected to spend $18-$19 billion in 2010 to upgrade its network. Apple feels confident in AT&T’s promise as well. In its recent quarterly earnings call, Apple COO Tim Cook said Apple has personally taken a look at AT&T’s plans and its confidant in its partner’s ability to provide a much better service going forward.

Apple is also in talks with Verizon to provide the iPad, which should help with AT&T network usage, albeit not in a way it intends for it to be.