diff --git a/telephony/java/android/telephony/PhoneNumberUtils.java b/telephony/java/android/telephony/PhoneNumberUtils.java
index d3942fc..77669c3 100644
--- a/telephony/java/android/telephony/PhoneNumberUtils.java
+++ b/telephony/java/android/telephony/PhoneNumberUtils.java
@@ -1003,6 +1003,7 @@
      * as:
      *
      * <p><code>
+     * xxxxx
      * xxx-xxxx
      * xxx-xxx-xxxx
      * 1-xxx-xxx-xxxx
@@ -1016,7 +1017,11 @@
         if (length > "+1-nnn-nnn-nnnn".length()) {
             // The string is too long to be formatted
             return;
+        } else if (length <= 5) {
+            // The string is either a shortcode or too short to be formatted
+            return;
         }
+
         CharSequence saved = text.subSequence(0, length);
 
         // Strip the dashes first, as we're going to add them back
diff --git a/tests/CoreTests/com/android/internal/telephony/PhoneNumberUtilsTest.java b/tests/CoreTests/com/android/internal/telephony/PhoneNumberUtilsTest.java
index e8bd239..ae11ed1 100644
--- a/tests/CoreTests/com/android/internal/telephony/PhoneNumberUtilsTest.java
+++ b/tests/CoreTests/com/android/internal/telephony/PhoneNumberUtilsTest.java
@@ -302,6 +302,11 @@
         number.append("800-55512");
         PhoneNumberUtils.formatNanpNumber(number);
         assertEquals("800-555-12", number.toString());
+
+        number.clear();
+        number.append("46645");
+        PhoneNumberUtils.formatNanpNumber(number);
+        assertEquals("46645", number.toString());
     }
 
     @SmallTest