>Do T-mobile (USA) SIM cards have default PIN1/2 PUK1/2 codes or do I have to >call customer service and ask?
Pin1 - yes (number should be in manual) Pin2 - no Puk1 - that is code when tmobile will give to you when you lock your phone using wrong Pin1 few times Puk2 - same thing but for Pin2 which tmobile doesnt offer