as far as I know they use both 850 and 1900 in your area. Make it safe - get a quad-band or tri-band USA phone (including both 850 and 1900 frequencies) - all phones from carrier in the US do !
What GSM do you need in Oakland. I am thinking about getting a new phone and i want to know if ill get reception or not?
Oakland has both 850 and 1900 mhz coverage...if you are cingular your best bet is 850 as that has a wider coverage range on a national scale...1900 coverage is limited at best...as posted bay another the safest way is a quad band or a tri band with both 850 and 1900