diff --git a/Makefile.am b/Makefile.am
index 53f19725..58bb532b 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -617,6 +617,7 @@ mbim_sources =	drivers/mbimmodem/mbim.h \
 builtin_modules += mbimmodem
 builtin_sources += $(mbim_sources) \
 			drivers/mbimmodem/util.h \
+			drivers/mbimmodem/util.c \
 			drivers/mbimmodem/mbimmodem.h \
 			drivers/mbimmodem/mbimmodem.c \
 			drivers/mbimmodem/devinfo.c \
diff --git a/drivers/mbimmodem/network-registration.c b/drivers/mbimmodem/network-registration.c
index 59407c4a..04db5822 100644
--- a/drivers/mbimmodem/network-registration.c
+++ b/drivers/mbimmodem/network-registration.c
@@ -44,32 +44,6 @@ struct netreg_data {
 	struct l_idle *delayed_register;
 };
 
-static inline int available_data_classes_to_tech(uint32_t n)
-{
-	if (n & MBIM_DATA_CLASS_LTE)
-		return ACCESS_TECHNOLOGY_EUTRAN;
-
-	if (n & (MBIM_DATA_CLASS_HSUPA | MBIM_DATA_CLASS_HSDPA))
-		return ACCESS_TECHNOLOGY_UTRAN_HSDPA_HSUPA;
-
-	if (n & MBIM_DATA_CLASS_HSUPA)
-		return ACCESS_TECHNOLOGY_UTRAN_HSUPA;
-
-	if (n & MBIM_DATA_CLASS_HSDPA)
-		return ACCESS_TECHNOLOGY_UTRAN_HSDPA;
-
-	if (n & MBIM_DATA_CLASS_UMTS)
-		return ACCESS_TECHNOLOGY_UTRAN;
-
-	if (n & MBIM_DATA_CLASS_EDGE)
-		return ACCESS_TECHNOLOGY_GSM_EGPRS;
-
-	if (n & MBIM_DATA_CLASS_GPRS)
-		return ACCESS_TECHNOLOGY_GSM;
-
-	return -1;
-}
-
 static inline int register_state_to_status(uint32_t register_state)
 {
 	switch (register_state) {
@@ -113,7 +87,7 @@ static void mbim_register_state_changed(struct mbim_message *message,
 	DBG("NwError: %u, RegisterMode: %u", nw_error, register_mode);
 
 	status = register_state_to_status(register_state);
-	tech = available_data_classes_to_tech(available_data_classes);
+	tech = mbim_data_class_to_tech(available_data_classes);
 
 	ofono_netreg_status_notify(netreg, status, -1, -1, tech);
 }
@@ -141,7 +115,7 @@ static void mbim_registration_status_cb(struct mbim_message *message,
 		goto error;
 
 	status = register_state_to_status(register_state);
-	tech = available_data_classes_to_tech(available_data_classes);
+	tech = mbim_data_class_to_tech(available_data_classes);
 
 	CALLBACK_WITH_SUCCESS(cb, status, -1, -1, tech, cbd->data);
 	return;
@@ -213,7 +187,7 @@ static void mbim_current_operator_cb(struct mbim_message *message, void *user)
 
 	/* Set to current */
 	op.status = 2;
-	op.tech = available_data_classes_to_tech(available_data_classes);
+	op.tech = mbim_data_class_to_tech(available_data_classes);
 
 	CALLBACK_WITH_SUCCESS(cb, &op, cbd->data);
 	return;
diff --git a/drivers/mbimmodem/util.c b/drivers/mbimmodem/util.c
new file mode 100644
index 00000000..1ae3cde6
--- /dev/null
+++ b/drivers/mbimmodem/util.c
@@ -0,0 +1,54 @@
+/*
+ *
+ *  oFono - Open Source Telephony
+ *
+ *  Copyright (C) 2017  Intel Corporation. All rights reserved.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include "src/common.h"
+#include "mbim.h"
+#include "util.h"
+
+int mbim_data_class_to_tech(uint32_t n)
+{
+	if (n & MBIM_DATA_CLASS_LTE)
+		return ACCESS_TECHNOLOGY_EUTRAN;
+
+	if (n & (MBIM_DATA_CLASS_HSUPA | MBIM_DATA_CLASS_HSDPA))
+		return ACCESS_TECHNOLOGY_UTRAN_HSDPA_HSUPA;
+
+	if (n & MBIM_DATA_CLASS_HSUPA)
+		return ACCESS_TECHNOLOGY_UTRAN_HSUPA;
+
+	if (n & MBIM_DATA_CLASS_HSDPA)
+		return ACCESS_TECHNOLOGY_UTRAN_HSDPA;
+
+	if (n & MBIM_DATA_CLASS_UMTS)
+		return ACCESS_TECHNOLOGY_UTRAN;
+
+	if (n & MBIM_DATA_CLASS_EDGE)
+		return ACCESS_TECHNOLOGY_GSM_EGPRS;
+
+	if (n & MBIM_DATA_CLASS_GPRS)
+		return ACCESS_TECHNOLOGY_GSM;
+
+	return -1;
+}
+
diff --git a/drivers/mbimmodem/util.h b/drivers/mbimmodem/util.h
index 51552156..683c49ea 100644
--- a/drivers/mbimmodem/util.h
+++ b/drivers/mbimmodem/util.h
@@ -55,3 +55,5 @@ static inline struct cb_data *cb_data_new(void *cb, void *data)
 		e.error = 0;				\
 		f(&e, ##args);				\
 	} while (0)
+
+int mbim_data_class_to_tech(uint32_t n);