diff -urp cpython-hg.orig/Lib/ipaddress.py cpython-hg/Lib/ipaddress.py
--- cpython-hg.orig/Lib/ipaddress.py	2014-05-18 16:28:03.874761216 +0200
+++ cpython-hg/Lib/ipaddress.py	2014-05-18 16:23:30.220900360 +0200
@@ -1353,6 +1353,10 @@ class IPv4Address(_BaseV4, _BaseAddress)
                 self in IPv4Network('240.0.0.0/4') or
                 self in IPv4Network('255.255.255.255/32'))
 
+    @property
+    def is_global(self):
+        return (not self in IPv4Network('100.64.0.0/10') and
+                not self.is_private)
 
     @property
     def is_multicast(self):
diff -urp cpython-hg.orig/Lib/test/test_ipaddress.py cpython-hg/Lib/test/test_ipaddress.py
--- cpython-hg.orig/Lib/test/test_ipaddress.py	2014-05-18 16:28:03.874761216 +0200
+++ cpython-hg/Lib/test/test_ipaddress.py	2014-05-18 16:23:30.220900360 +0200
@@ -1501,6 +1501,9 @@ class IpaddrUnitTest(unittest.TestCase):
                          ipaddress.ip_address('169.254.100.200').is_link_local)
         self.assertEqual(False,
                          ipaddress.ip_address('169.255.100.200').is_link_local)
+        self.assertEqual(True, ipaddress.ip_address('192.0.7.1').is_global)
+        self.assertEqual(False,
+                        ipaddress.ip_address('203.0.113.1').is_global)
 
         self.assertEqual(True,
                           ipaddress.ip_address('127.100.200.254').is_loopback)