http://comtrade.un.org/ws/refs/getCountryList.aspx 

The country list (XML Output) from above URL contains Countries and Country groups (or) Regions. 

Q’s:

-          Why is the above URL returning both Countries and Country groups (or) regions? It should return the countries only.

-          Is there any webservice to get the country list by excluding the groups (or) regions?

-          Is there a flag in the XML output (from the above URL)  to determine the group (or) region?

-          Can we pass any parameter to the above URL to filter the Countries?