diff --git a/openair3/NAS/TOOLS/conf2uedata.c b/openair3/NAS/TOOLS/conf2uedata.c
index a9eb8ef797ed015e4da684d32ddff550fcd5aedd..3a783c2fe389d0cb6f2bd65784a638bce2675313 100644
--- a/openair3/NAS/TOOLS/conf2uedata.c
+++ b/openair3/NAS/TOOLS/conf2uedata.c
@@ -12,18 +12,13 @@
 #include "conf_user_data.h"
 #include "conf_usim.h"
 
-int *ucplmn = NULL;
-int *oplmn = NULL;
-int *ocplmn = NULL;
-int *fplmn = NULL;
-int *ehplmn = NULL;
+plmns_list ucplmns;
+plmns_list oplmns;
+plmns_list ocplmns;
+plmns_list fplmns;
+plmns_list ehplmns;
 
 int plmn_nb = 0;
-int ucplmn_nb = 0;
-int oplmn_nb = 0;
-int ocplmn_nb = 0;
-int fplmn_nb = 0;
-int ehplmn_nb = 0;
 
 plmn_conf_param_t* user_plmn_list=NULL;
 network_record_t* user_network_record_list = NULL;
@@ -241,15 +236,15 @@ int parse_ue_plmn_param(config_setting_t *ue_setting, int user_id, const char **
 		return EXIT_FAILURE;
 	}
 
-	if ( parse_Xplmn(ue_setting, UCPLMN, user_id, &ucplmn_nb, &ucplmn) == EXIT_FAILURE )
+	if ( parse_Xplmn(ue_setting, UCPLMN, user_id, &ucplmns) == EXIT_FAILURE )
 		nb_errors++;
-	if ( parse_Xplmn(ue_setting, OPLMN, user_id, &oplmn_nb, &oplmn) == EXIT_FAILURE )
+	if ( parse_Xplmn(ue_setting, OPLMN, user_id, &oplmns) == EXIT_FAILURE )
 		nb_errors++;
-	if ( parse_Xplmn(ue_setting, OCPLMN, user_id, &ocplmn_nb, &ocplmn) == EXIT_FAILURE )
+	if ( parse_Xplmn(ue_setting, OCPLMN, user_id, &ocplmns) == EXIT_FAILURE )
 		nb_errors++;
-	if ( parse_Xplmn(ue_setting, FPLMN, user_id, &fplmn_nb, &fplmn) == EXIT_FAILURE )
+	if ( parse_Xplmn(ue_setting, FPLMN, user_id, &fplmns) == EXIT_FAILURE )
 		nb_errors++;
-	if ( parse_Xplmn(ue_setting, EHPLMN, user_id, &ehplmn_nb, &ehplmn) == EXIT_FAILURE )
+	if ( parse_Xplmn(ue_setting, EHPLMN, user_id, &ehplmns) == EXIT_FAILURE )
 		nb_errors++;
 
 	if ( nb_errors > 0 )
@@ -258,7 +253,7 @@ int parse_ue_plmn_param(config_setting_t *ue_setting, int user_id, const char **
 }
 
 int parse_Xplmn(config_setting_t *ue_setting, const char *section,
-               int user_id, int *plmns_count, int **plmns ) {
+               int user_id, plmns_list *plmns) {
 	int rc;
 	int item_count;
 	config_setting_t *setting;
@@ -286,8 +281,8 @@ int parse_Xplmn(config_setting_t *ue_setting, const char *section,
 		datas[i] = rc;
 	}
 
-	*plmns_count = item_count;
-	*plmns = datas;
+	plmns->size = item_count;
+	plmns->items = datas;
 	return EXIT_SUCCESS;
 }
 
diff --git a/openair3/NAS/TOOLS/conf2uedata.h b/openair3/NAS/TOOLS/conf2uedata.h
index 9fd1cb53a932df6d24cabdd2d8a959428ad354aa..64a182af7508335a8153c4e8211adba9f67c49ec 100644
--- a/openair3/NAS/TOOLS/conf2uedata.h
+++ b/openair3/NAS/TOOLS/conf2uedata.h
@@ -43,18 +43,18 @@ typedef struct {
 	const char *mcc;
 } plmn_conf_param_t;
 
-extern int *ucplmn;
-extern int *oplmn;
-extern int *ocplmn;
-extern int *fplmn;
-extern int *ehplmn;
+typedef struct {
+    int size;
+    int *items;
+} plmns_list;
+
+extern plmns_list ucplmns;
+extern plmns_list oplmns;
+extern plmns_list ocplmns;
+extern plmns_list fplmns;
+extern plmns_list ehplmns;
 
 extern int plmn_nb;
-extern int ucplmn_nb;
-extern int oplmn_nb;
-extern int ocplmn_nb;
-extern int fplmn_nb;
-extern int ehplmn_nb;
 
 extern plmn_conf_param_t* user_plmn_list;
 extern network_record_t* user_network_record_list;
@@ -70,7 +70,7 @@ int parse_plmns(config_setting_t *all_plmn_setting);
 int get_plmn_index(const char * mccmnc);
 int parse_ue_plmn_param(config_setting_t *ue_setting, int user_id, const char **hplmn);
 int parse_Xplmn(config_setting_t *ue_setting, const char *section,
-               int user_id, int *plmns_count, int **plmns );
+               int user_id, plmns_list *plmns);
 
 
 #endif // _CONF2UEDATA_H
diff --git a/openair3/NAS/TOOLS/conf_emm.c b/openair3/NAS/TOOLS/conf_emm.c
index de696592de92c52c6d8e0d09d3400c58ed5fda40..ca9665e6d6cf238fa1fbf6e8bf57bb3690ba66dd 100644
--- a/openair3/NAS/TOOLS/conf_emm.c
+++ b/openair3/NAS/TOOLS/conf_emm.c
@@ -53,7 +53,7 @@ void gen_emm_data(emm_nvdata_t *emm_data, const char *hplmn, const char *msin) {
 	emm_data->rplmn.MNCdigit1 = user_plmn_list[hplmn_index].mnc[0];
 	emm_data->rplmn.MNCdigit2 = user_plmn_list[hplmn_index].mnc[1];
 
-	emm_data->eplmn.n_plmns = ehplmn_nb;
+	emm_data->eplmn.n_plmns = ehplmns.size;
 }
 
 int write_emm_data(const char *directory, int user_id, emm_nvdata_t *emm_data) {
diff --git a/openair3/NAS/TOOLS/conf_usim.c b/openair3/NAS/TOOLS/conf_usim.c
index 345309996fc2bba01078105b284c135fc670a226..916104186287eeb319fccccb6006d9cdfea81db2 100644
--- a/openair3/NAS/TOOLS/conf_usim.c
+++ b/openair3/NAS/TOOLS/conf_usim.c
@@ -96,9 +96,9 @@ void gen_usim_data(usim_data_conf_t *u, usim_data_t *usim_data) {
 	for (int i = 0; i < USIM_FPLMN_MAX; i++) {
 		memset(&usim_data->fplmn[i], 0xff, sizeof(plmn_t));
 	}
-	if (fplmn_nb > 0) {
-		for (int i = 0; i < fplmn_nb; i++) {
-			usim_data->fplmn[i] = user_network_record_list[fplmn[i]].plmn;
+	if (fplmns.size > 0) {
+		for (int i = 0; i < fplmns.size; i++) {
+			usim_data->fplmn[i] = user_network_record_list[fplmns.items[i]].plmn;
 		}
 	}
 
@@ -183,8 +183,8 @@ void gen_usim_data(usim_data_conf_t *u, usim_data_t *usim_data) {
 	/*
 	 * PLMN Network Name and Operator PLMN List
 	 */
-	for (int i = 0; i < oplmn_nb; i++) {
-		network_record_t record = user_network_record_list[oplmn[i]];
+	for (int i = 0; i < oplmns.size; i++) {
+		network_record_t record = user_network_record_list[oplmns.items[i]];
 		usim_data->pnn[i].fullname.type = USIM_PNN_FULLNAME_TAG;
 		usim_data->pnn[i].fullname.length = strlen(record.fullname);
 		strncpy((char*) usim_data->pnn[i].fullname.value, record.fullname,
@@ -198,8 +198,8 @@ void gen_usim_data(usim_data_conf_t *u, usim_data_t *usim_data) {
 		usim_data->opl[i].end = record.tac_end;
 		usim_data->opl[i].record_id = i;
 	}
-	if (oplmn_nb < USIM_OPL_MAX) {
-		for (int i = oplmn_nb; i < USIM_OPL_MAX; i++) {
+	if (oplmns.size < USIM_OPL_MAX) {
+		for (int i = oplmns.size; i < USIM_OPL_MAX; i++) {
 			memset(&usim_data->opl[i].plmn, 0xff, sizeof(plmn_t));
 		}
 	}
@@ -207,11 +207,11 @@ void gen_usim_data(usim_data_conf_t *u, usim_data_t *usim_data) {
 	/*
 	 * List of Equivalent HPLMNs
 	 */
-	for (int i = 0; i < ehplmn_nb; i++) {
-		usim_data->ehplmn[i] = user_network_record_list[ehplmn[i]].plmn;
+	for (int i = 0; i < ehplmns.size; i++) {
+		usim_data->ehplmn[i] = user_network_record_list[ehplmns.items[i]].plmn;
 	}
-	if (ehplmn_nb < USIM_EHPLMN_MAX) {
-		for (int i = ehplmn_nb; i < USIM_EHPLMN_MAX; i++) {
+	if (ehplmns.size < USIM_EHPLMN_MAX) {
+		for (int i = ehplmns.size; i < USIM_EHPLMN_MAX; i++) {
 			memset(&usim_data->ehplmn[i], 0xff, sizeof(plmn_t));
 		}
 	}
@@ -227,9 +227,9 @@ void gen_usim_data(usim_data_conf_t *u, usim_data_t *usim_data) {
 	for (int i = 0; i < USIM_PLMN_MAX; i++) {
 		memset(&usim_data->plmn[i], 0xff, sizeof(plmn_t));
 	}
-	if (ucplmn_nb > 0) {
-		for (int i = 0; i < ucplmn_nb; i++) {
-			usim_data->plmn[i].plmn = user_network_record_list[ucplmn[i]].plmn;
+	if (ucplmns.size > 0) {
+		for (int i = 0; i < ucplmns.size; i++) {
+			usim_data->plmn[i].plmn = user_network_record_list[ucplmns.items[i]].plmn;
 		}
 	}
 
@@ -238,9 +238,9 @@ void gen_usim_data(usim_data_conf_t *u, usim_data_t *usim_data) {
 	for (int i = 0; i < USIM_OPLMN_MAX; i++) {
 		memset(&usim_data->oplmn[i], 0xff, sizeof(plmn_t));
 	}
-	if (ocplmn_nb > 0) {
-		for (int i = 0; i < ocplmn_nb; i++) {
-			usim_data->oplmn[i].plmn = user_network_record_list[ocplmn[i]].plmn;
+	if (ocplmns.size > 0) {
+		for (int i = 0; i < ocplmns.size; i++) {
+			usim_data->oplmn[i].plmn = user_network_record_list[ocplmns.items[i]].plmn;
 			usim_data->oplmn[i].AcT = (USIM_ACT_GSM | USIM_ACT_UTRAN
 					| USIM_ACT_EUTRAN);
 		}