diff --git a/include/Makefile.am b/include/Makefile.am
index 6f14cb0..c59f9b2 100644
--- a/include/Makefile.am
+++ b/include/Makefile.am
@@ -39,6 +39,7 @@
                        osmocom/crypt/gprs_cipher.h \
 		       osmocom/ctrl/control_cmd.h \
 		       osmocom/ctrl/control_if.h \
+		       osmocom/ctrl/ports.h \
                        osmocom/gprs/gprs_bssgp.h \
                        osmocom/gprs/gprs_bssgp_bss.h \
                        osmocom/gprs/gprs_msgb.h \
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