The Bureau of Intelligence and Research maintains a list of Independent States in the World and a list of Dependencies and Areas of Special Sovereignty. These lists provide the short-form and long-form names, two-letter country code, and capital or administrative center for countries and dependencies. The independent states list indicates whether a state has diplomatic relations with the U.S. and whether the state is a member of the United Nations. The dependencies list indicates which state has sovereignty.
01/06/17 Independent States in the World
10/12/16 Dependencies and Areas of Special Sovereignty