diff --git a/service/src/main/java/org/whispersystems/textsecuregcm/controllers/MessageController.java b/service/src/main/java/org/whispersystems/textsecuregcm/controllers/MessageController.java
index 1b729bea8..94daf8b4e 100644
--- a/service/src/main/java/org/whispersystems/textsecuregcm/controllers/MessageController.java
+++ b/service/src/main/java/org/whispersystems/textsecuregcm/controllers/MessageController.java
@@ -12,6 +12,7 @@ import com.codahale.metrics.MetricRegistry;
 import com.codahale.metrics.SharedMetricRegistries;
 import com.codahale.metrics.Timer;
 import com.codahale.metrics.annotation.Timed;
+import com.google.i18n.phonenumbers.PhoneNumberUtil;
 import com.google.protobuf.ByteString;
 import io.dropwizard.auth.Auth;
 import io.dropwizard.util.DataSize;
@@ -90,6 +91,7 @@ public class MessageController {
 
   private static final String SENT_MESSAGE_COUNTER_NAME                          = name(MessageController.class, "sentMessages");
   private static final String REJECT_UNSEALED_SENDER_COUNTER_NAME                = name(MessageController.class, "rejectUnsealedSenderLimit");
+  private static final String INTERNATIONAL_UNSEALED_SENDER_COUNTER_NAME         = name(MessageController.class, "internationalUnsealedSender");
   private static final String CONTENT_SIZE_DISTRIBUTION_NAME                     = name(MessageController.class, "messageContentSize");
   private static final String OUTGOING_MESSAGE_LIST_SIZE_BYTES_DISTRIBUTION_NAME = name(MessageController.class, "outgoingMessageListSizeBytes");
 
@@ -189,6 +191,10 @@ public class MessageController {
 
       if (source.isPresent() && !source.get().isFor(destinationName)) {
         rateLimiters.getMessagesLimiter().validate(source.get().getUuid() + "__" + destination.get().getUuid());
+
+        if (!Util.getCountryCode(source.get().getNumber()).equals(destination.get().getNumber())) {
+          Metrics.counter(INTERNATIONAL_UNSEALED_SENDER_COUNTER_NAME, SENDER_COUNTRY_TAG_NAME, Util.getCountryCode(source.get().getNumber()));
+        }
       }
 
       validateCompleteDeviceList(destination.get(), messages.getMessages(), isSyncMessage);