Will the Nokia 6620 phone work in Poland or Romania?!?!Help PLS!!!

The U.S. uses GSM 850MHz and 1900MHz.

Europe uses GSM 900MHz and 1800MHz, with 900 providing best coverage and 1800 in many (but not all) rural areas, cities.

The 6620 supports 850/1800/1900 (two U.S. bands and one European).

In other words, it will work in Poland and Romania on those areas where there is 1800 coverage. As local operators for details.