diff --git a/device.mk b/device.mk
index fef49dc2..8d4c5eeb 100644
--- a/device.mk
+++ b/device.mk
@@ -1001,6 +1001,10 @@ PRODUCT_PACKAGES += \
 	empty_modem_log_mask.nprf \
 	empty_modem_log_mask.xml
 
+# Lassen default log mask
+PRODUCT_PACKAGES += \
+	lassen_default.conf
+
 endif
 
 # Vibrator Diag
diff --git a/radio/config/lassen_default/Android.bp b/radio/config/lassen_default/Android.bp
new file mode 100644
index 00000000..35b0715d
--- /dev/null
+++ b/radio/config/lassen_default/Android.bp
@@ -0,0 +1,33 @@
+//
+// Copyright (C) 2023 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package {
+    // See: http://go/android-license-faq
+    // A large-scale-change added 'default_applicable_licenses' to import
+    // all of the 'license_kinds' from "//device/google/zuma:device_google_zuma_license"
+    // to get the below license kinds:
+    //   SPDX-license-identifier-Apache-2.0
+    default_applicable_licenses: [
+        "//device/google/zuma:device_google_zuma_license",
+    ],
+}
+
+prebuilt_etc {
+    name: "lassen_default.conf",
+    vendor: true,
+    proprietary: true,
+    src: "logging.conf",
+    relative_install_path: "radio/log_masks/lassen_default"
+}
diff --git a/radio/config/lassen_default/logging.conf b/radio/config/lassen_default/logging.conf
new file mode 100644
index 00000000..69fbd5fe
--- /dev/null
+++ b/radio/config/lassen_default/logging.conf
@@ -0,0 +1 @@
+modem_logging_control START -o /data/vendor/radio/logs/always-on -n 50 -s 50 -i 1 --enable_exmetric --enable_exmetric_internal
\ No newline at end of file