diff --git a/src/com/android/settings/SettingsDumpService.java b/src/com/android/settings/SettingsDumpService.java
index 2a041f33772..7e37e32ee07 100644
--- a/src/com/android/settings/SettingsDumpService.java
+++ b/src/com/android/settings/SettingsDumpService.java
@@ -111,9 +111,13 @@ public class SettingsDumpService extends Service {
             for (SubscriptionInfo info : manager.getAvailableSubscriptionInfoList()) {
                 telephonyManager = telephonyManager
                         .createForSubscriptionId(info.getSubscriptionId());
-                NetworkTemplate carrier = NetworkTemplate.buildTemplateCarrierMetered(
-                        telephonyManager.getSubscriberId());
-                final JSONObject usage = dumpDataUsage(carrier, controller);
+                String subscriberId = telephonyManager.getSubscriberId();
+                // The null subscriberId means that no any mobile/carrier network will be matched.
+                // Using old API: buildTemplateMobileAll for the null subscriberId to avoid NPE.
+                NetworkTemplate template = subscriberId != null
+                        ? NetworkTemplate.buildTemplateCarrierMetered(subscriberId)
+                        : NetworkTemplate.buildTemplateMobileAll(subscriberId);
+                final JSONObject usage = dumpDataUsage(template, controller);
                 usage.put("subId", info.getSubscriptionId());
                 array.put(usage);
             }
diff --git a/src/com/android/settings/datausage/lib/DataUsageLib.java b/src/com/android/settings/datausage/lib/DataUsageLib.java
index 93907aade62..830f1cac33a 100644
--- a/src/com/android/settings/datausage/lib/DataUsageLib.java
+++ b/src/com/android/settings/datausage/lib/DataUsageLib.java
@@ -73,7 +73,10 @@ public class DataUsageLib {
 
     private static NetworkTemplate getMobileTemplateForSubId(
             TelephonyManager telephonyManager, int subId) {
-        return NetworkTemplate.buildTemplateCarrierMetered(
-                telephonyManager.getSubscriberId(subId));
+        // The null subscriberId means that no any mobile/carrier network will be matched.
+        // Using old API: buildTemplateMobileAll for the null subscriberId to avoid NPE.
+        String subscriberId = telephonyManager.getSubscriberId(subId);
+        return subscriberId != null ? NetworkTemplate.buildTemplateCarrierMetered(subscriberId)
+                : NetworkTemplate.buildTemplateMobileAll(subscriberId);
     }
 }