pythonthings
diff --git a/‎python/phonenumbers/phonenumberutil.py‎
Lines changed: 7 additions & 2 deletions b/‎python/phonenumbers/phonenumberutil.py‎
Lines changed: 7 additions & 2 deletions
diff --git a/‎python/tests/phonenumberutiltest.py‎
Lines changed: 3 additions & 0 deletions b/‎python/tests/phonenumberutiltest.py‎
Lines changed: 3 additions & 0 deletions
@@ -2555,8 +2555,13 @@ def _build_national_number_for_parsing(number):
             national_number = U_EMPTY_STRING
         # Now append everything between the "tel:" prefix and the
         # phone-context. This should include the national number, an optional
-        # extension or isdn-subaddress component.
-        national_number += number[number.find(_RFC3966_PREFIX) + len(_RFC3966_PREFIX):index_of_phone_context]
+        # extension or isdn-subaddress component. Note we also handle the case
+        # when "tel:" is missing, as we have seen in some of the phone number
+        # inputs.  In that case we append everything from the beginning.
+        index_of_rfc3996_prefix = number.find(_RFC3966_PREFIX)
+        index_of_national_number = ((index_of_rfc3996_prefix + len(_RFC3966_PREFIX))
+                                    if (index_of_rfc3996_prefix >= 0) else 0);
+        national_number += number[index_of_national_number:index_of_phone_context]
     else:
         # Extract a possible number from the string passed in (this strips leading characters that
         # could not be the start of a phone number.)
 
@@ -1608,12 +1608,15 @@ def testParseNationalNumber(self):
         self.assertEqual(NZ_NUMBER, phonenumbers.parse("tel:03-331-6005;phone-context=+64", "NZ"))
         self.assertEqual(NZ_NUMBER, phonenumbers.parse("tel:331-6005;phone-context=+64-3", "NZ"))
         self.assertEqual(NZ_NUMBER, phonenumbers.parse("tel:331-6005;phone-context=+64-3", "US"))
+        self.assertEqual(NZ_NUMBER, phonenumbers.parse("My number is tel:03-331-6005;phone-context=+64", "NZ"))
         # Test parsing RFC3966 format with optional user-defined
         # parameters. The parameters will appear after the context if present.
         self.assertEqual(NZ_NUMBER, phonenumbers.parse("tel:03-331-6005;phone-context=+64;a=%A1", "NZ"))
         # Test parsing RFC3966 with an ISDN subaddress.
         self.assertEqual(NZ_NUMBER, phonenumbers.parse("tel:03-331-6005;isub=12345;phone-context=+64", "NZ"))
         self.assertEqual(NZ_NUMBER, phonenumbers.parse("tel:+64-3-331-6005;isub=12345", "NZ"))
+        # Test parsing RFC3966 with "tel:" missing.
+        self.assertEqual(NZ_NUMBER, phonenumbers.parse("03-331-6005;phone-context=+64", "NZ"))
         # Testing international prefixes.
         # Should strip country calling code.
         self.assertEqual(NZ_NUMBER, phonenumbers.parse("0064 3 331 6005", "NZ"))