diff --git a/src/calls-origin.c b/src/calls-origin.c
index 6c6180b..88373ad 100644
--- a/src/calls-origin.c
+++ b/src/calls-origin.c
@@ -250,3 +250,27 @@ calls_origin_get_country_code (CallsOrigin *self)
 
   return iface->get_country_code (self);
 }
+
+/**
+ * calls_origin_get_network_country_code:
+ * @self: A #CallsOrigin
+ *
+ * Gets the country code of the mobile network we're currently
+ * connected to.
+ *
+ * Returns: (nullable): The country code
+ */
+const char *
+calls_origin_get_network_country_code (CallsOrigin *self)
+{
+  CallsOriginInterface *iface;
+
+  g_return_val_if_fail (CALLS_IS_ORIGIN (self), FALSE);
+
+  iface = CALLS_ORIGIN_GET_IFACE (self);
+  /* network country code is optional */
+  if (iface->get_network_country_code == NULL)
+    return NULL;
+
+  return iface->get_network_country_code (self);
+}
diff --git a/src/calls-origin.h b/src/calls-origin.h
index 9bc5636..7e11864 100644
--- a/src/calls-origin.h
+++ b/src/calls-origin.h
@@ -44,6 +44,8 @@ struct _CallsOriginInterface {
   gboolean       (*supports_protocol)                   (CallsOrigin *self,
                                                          const char  *protocol);
   const char *   (*get_country_code)                    (CallsOrigin *self);
+  /* TODO: should we have an additional CALLS_MODEM_ORIGIN interface for modems? */
+  const char *   (*get_network_country_code)            (CallsOrigin *self);
 };
 
 typedef void (*CallsOriginForeachCallFunc) (gpointer param, CallsCall* call, CallsOrigin* origin);
@@ -60,6 +62,6 @@ gboolean               calls_origin_supports_protocol       (CallsOrigin *self,
                                                              const char *protocol);
 GStrv                  calls_origin_get_emergency_numbers   (CallsOrigin *self);
 const char *           calls_origin_get_country_code        (CallsOrigin *self);
+const char *           calls_origin_get_network_country_code (CallsOrigin *self);
 
 G_END_DECLS
-