diff --git a/include/osmocom/ctrl/ports.h b/include/osmocom/ctrl/ports.h
new file mode 100644
index 0000000..6d15406
--- /dev/null
+++ b/include/osmocom/ctrl/ports.h
@@ -0,0 +1,7 @@
+#pragma once
+
+/* TCP port numbers used for CTRL interfaces in osmocom projects */
+
+#define OSMO_CTRL_PORT_NITB_BSC	4249
+#define OSMO_CTRL_PORT_BSC_NAT	4250
+#define OSMO_CTRL_PORT_SGSN	4251