When it comes to the US market, a cell phone’s success lies squarely on carrier support. No matter how great of a device you have, for instance the Xperia Arc, if you don’t have carrier support (which means selling the phone at a subsidized price with a two year contract), you won’t have sales success either. Sure, buying a phone at $600 with no contract sounds like fun, but even Google found that only a few were willing to pay that for the Nexus when it launched, a phone that was to be a flagship and prime example of what Android could do. If the following is any indication, it can be good news for Sony Ericsson, where the FCC has just green-lighted the Xperia Ray for the US. Thanks to their documentation, we can also report that the Xperia Ray supports quadband HSPA, priming it up for AT&T and worldwide networks while it lacks AWS, meaning that T-Mobile customers will not be seeing their lady in pink pitching them one. Hopefully as Sony Ericsson increases their brand presence in the United States, they will also elevate their partnerships with different US carriers or risk selling but a few handsets only.

Hit the jump for a revealing breakdown of the Xperia Arc by the FCC.

[Via FCC]