Will Nokia 6630 work in US ?

Nikia 6630 has Triband Frequency. GSM 900/1800/1900 Mhz. USA uses GSM 850 also. So it may work in some areas and may not work in some. A Quadband phone is necessary to be able to use all over world.

Depends on your service provider. For e.g. see this: *www.gsmworld.com/cgi-bin/ni_map.pl?cc=us&net=be If you are in the east coast then an AT&T connection will probably work for you. So first get to know the region and then ther service provider.

The whole list is here: *www.gsmworld.com/roaming/gsminfo/cou_us.shtml

What about CDMA and GSM ?
Whats more prominent there ?

Can a dualband phone like Nokia 2760 work in the US ?

Both cdma and gsm are quite prevalent in the US. List of US Mobile companies: *en.wikipedia.org/wiki/List_of_United_States_mobile_phone_companies

@GeekyBoy
Check the second link in my previous post. It has a list of operators and the operational frequencies.

@infra_red_dude
Actually this for my Bro and he is going to Jacksonville, Florida. I checked the above link and found that AT&T has its services there 1900Mhz.

^^^ then whats the worry??

Plz chk this thread:

*www.thinkdigit.com/forum/showthread.php?t=88730