Identify AT&T vs T-Mobile

[TRipley]

Is there anyway to tell by looking at the phone which version it is, without a SIM card in it?

 

[SnotF]

No. The phones aren't marked on the outer shell.

 

[Saneless]

How about the boxes? I have both an AT&T and Tmobile phone arriving and I'm going to send back the Tmo one..

Don't ask..

But I don't want to open the T-mobile one, is it listed differently on the box?

 

[techrider62]

Look at the receipt my nexus one att phone is a gsm 3g 850/1900/2100mhz with the s/n of phone. The tmo should be different hopefully,or you can ask them.