Country code +1 is North America (USA, Canada, etc.). You need the next three digits to be more specific, although it happens that all the +1 97X codes in use as of 2012 are in the USA.
+1 970 is in Colorado
+1 971 is in Oregon
+1 972 is in Texas
+1 973 is in New Jersey
+1 978 is in Massachusetts
+1 979 is in Texas
The country code and area code of Esashi- Iwate, Japan is 81, (0)197.
plus 621 what country code
Country code +371 is Latvia.
Telephone country code +40 is Romania.
Country code +263 is Zimbabwe.
Country code +46 is Sweden.
That is the country code for Benin West Africa
Code for Dubai
197 + 1639 + 9147 + 6931 + 729 + 9999 = 28642
Telephone country code +250 is Rwanda, in Africa.
I believe that that is not a valid country code - in others words no country has that code.
Country code +972 is Israel.