diff --git a/plugins/mm/calls-mm-origin.c b/plugins/mm/calls-mm-origin.c
index 2413320..8ac3491 100644
--- a/plugins/mm/calls-mm-origin.c
+++ b/plugins/mm/calls-mm-origin.c
@@ -27,6 +27,7 @@
 #include "calls-ussd.h"
 #include "calls-mm-call.h"
 #include "calls-message-source.h"
+#include "itu-e212-iso.h"
 
 #include <glib/gi18n.h>
 
@@ -37,6 +38,7 @@ struct _CallsMMOrigin
   MMObject *mm_obj;
   MMModemVoice *voice;
   MMModem3gppUssd *ussd;
+  MMSim *sim;
 
   /* XXX: These should be used only for pointer comparison,
    * The content should never be used as it might be
@@ -47,6 +49,7 @@ struct _CallsMMOrigin
   gulong           ussd_handle_id;
   gchar *name;
   GHashTable *calls;
+  char *country_code;
 };
 
 static void calls_mm_origin_message_source_interface_init (CallsOriginInterface *iface);
@@ -647,7 +650,7 @@ get_property (GObject      *object,
     break;
 
   case PROP_COUNTRY_CODE:
-    g_value_set_string (value, NULL);
+    g_value_set_string (value, self->country_code);
     break;
 
   default:
@@ -747,6 +750,28 @@ call_mm_ussd_changed_cb (CallsMMOrigin *self)
                                                     G_CONNECT_SWAPPED);
 }
 
+static void
+cb_get_sim_ready (MMModem      *modem,
+                  GAsyncResult *res,
+                  gpointer      user_data)
+{
+  const char *code;
+  CallsMMOrigin *self = CALLS_MM_ORIGIN (user_data);
+
+  self->sim = mm_modem_get_sim_finish (modem, res, NULL);
+
+  code = get_country_iso_for_mcc (mm_sim_get_imsi (self->sim));
+  if (code) {
+    if (g_strcmp0 (self->country_code, code) == 0)
+      return;
+
+    g_debug ("Setting the country code to `%s'", code);
+
+    self->country_code = g_strdup (code);
+    g_object_notify_by_pspec (G_OBJECT (self), props[PROP_COUNTRY_CODE]);
+  }
+}
+
 static void
 constructed (GObject *object)
 {
@@ -755,6 +780,11 @@ constructed (GObject *object)
 
   self->name = modem_get_name (mm_object_get_modem (self->mm_obj));
 
+  mm_modem_get_sim (mm_object_get_modem (self->mm_obj),
+                    NULL,
+                    (GAsyncReadyCallback) cb_get_sim_ready,
+                    self);
+
   g_signal_connect_object (self->mm_obj, "notify::modem3gpp-ussd",
                            G_CALLBACK (call_mm_ussd_changed_cb), self,
                            G_CONNECT_SWAPPED);
@@ -786,6 +816,7 @@ dispose (GObject *object)
   remove_calls (self, NULL);
   g_clear_object (&self->mm_obj);
   g_clear_object (&self->ussd);
+  g_clear_pointer (&self->country_code, g_free);
 
   G_OBJECT_CLASS (calls_mm_origin_parent_class)->dispose (object);
 }