diff --git a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/IRadioModemIndication.aidl b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/IRadioModemIndication.aidl
index 20066f8..3c06877 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/IRadioModemIndication.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.modem/current/android/hardware/radio/modem/IRadioModemIndication.aidl
@@ -40,4 +40,5 @@
   oneway void radioCapabilityIndication(in android.hardware.radio.RadioIndicationType type, in android.hardware.radio.modem.RadioCapability rc);
   oneway void radioStateChanged(in android.hardware.radio.RadioIndicationType type, in android.hardware.radio.modem.RadioState radioState);
   oneway void rilConnected(in android.hardware.radio.RadioIndicationType type);
+  oneway void onImeiMappingChanged(in android.hardware.radio.RadioIndicationType type, in android.hardware.radio.modem.ImeiInfo imeiInfo);
 }
diff --git a/radio/aidl/android/hardware/radio/modem/IRadioModemIndication.aidl b/radio/aidl/android/hardware/radio/modem/IRadioModemIndication.aidl
index 4b98277..ba3c510 100644
--- a/radio/aidl/android/hardware/radio/modem/IRadioModemIndication.aidl
+++ b/radio/aidl/android/hardware/radio/modem/IRadioModemIndication.aidl
@@ -20,6 +20,7 @@
 import android.hardware.radio.modem.HardwareConfig;
 import android.hardware.radio.modem.RadioCapability;
 import android.hardware.radio.modem.RadioState;
+import android.hardware.radio.modem.ImeiInfo;
 
 /**
  * Interface declaring unsolicited radio indications for modem APIs.
@@ -76,4 +77,12 @@
      * @param type Type of radio indication
      */
     void rilConnected(in RadioIndicationType type);
+
+    /**
+     * Indicates when there is a change in the IMEI mapping.
+     *
+     * @param type Type of radio indication
+     * @param imeiInfo IMEI information
+     */
+     void onImeiMappingChanged(in RadioIndicationType type, in ImeiInfo imeiInfo);
 }
diff --git a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioIndication.h b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioIndication.h
index f042456..e6f2516 100644
--- a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioIndication.h
+++ b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioIndication.h
@@ -26,6 +26,7 @@
 #include <aidl/android/hardware/radio/sim/IRadioSimIndication.h>
 #include <aidl/android/hardware/radio/voice/IRadioVoiceIndication.h>
 #include <android/hardware/radio/1.6/IRadioIndication.h>
+#include <aidl/android/hardware/radio/modem/ImeiInfo.h>
 
 namespace android::hardware::radio::compat {
 
@@ -208,7 +209,8 @@
     Return<void> simPhonebookRecordsReceived(
             V1_0::RadioIndicationType type, V1_6::PbReceivedStatus status,
             const hidl_vec<V1_6::PhonebookRecordInfo>& records) override;
-
+    Return<void> onImeiMappingChanged(V1_0::RadioIndicationType type,
+                                      ::aidl::android::hardware::radio::modem::ImeiInfo config);
   public:
     RadioIndication(std::shared_ptr<DriverContext> context);
 
diff --git a/radio/aidl/compat/libradiocompat/modem/RadioIndication-modem.cpp b/radio/aidl/compat/libradiocompat/modem/RadioIndication-modem.cpp
index 851c93b..990ccff 100644
--- a/radio/aidl/compat/libradiocompat/modem/RadioIndication-modem.cpp
+++ b/radio/aidl/compat/libradiocompat/modem/RadioIndication-modem.cpp
@@ -68,4 +68,11 @@
     return {};
 }
 
+Return<void> RadioIndication::onImeiMappingChanged(V1_0::RadioIndicationType type,
+                                    ::aidl::android::hardware::radio::modem::ImeiInfo imeiInfo) {
+    LOG_CALL << type;
+    modemCb()->onImeiMappingChanged(toAidl(type), imeiInfo);
+    return {};
+}
+
 }  // namespace android::hardware::radio::compat
diff --git a/radio/aidl/vts/radio_modem_indication.cpp b/radio/aidl/vts/radio_modem_indication.cpp
index 0bfcd66..9f63cb0 100644
--- a/radio/aidl/vts/radio_modem_indication.cpp
+++ b/radio/aidl/vts/radio_modem_indication.cpp
@@ -41,3 +41,8 @@
 ndk::ScopedAStatus RadioModemIndication::rilConnected(RadioIndicationType /*type*/) {
     return ndk::ScopedAStatus::ok();
 }
+
+ndk::ScopedAStatus RadioModemIndication::onImeiMappingChanged(RadioIndicationType /*type*/,
+     const ::aidl::android::hardware::radio::modem::ImeiInfo& /*imeiInfo*/) {
+    return ndk::ScopedAStatus::ok();
+}
diff --git a/radio/aidl/vts/radio_modem_utils.h b/radio/aidl/vts/radio_modem_utils.h
index d47bdeb..aa99ea3 100644
--- a/radio/aidl/vts/radio_modem_utils.h
+++ b/radio/aidl/vts/radio_modem_utils.h
@@ -109,6 +109,9 @@
                                                  RadioState radioState) override;
 
     virtual ndk::ScopedAStatus rilConnected(RadioIndicationType type) override;
+
+    virtual ndk::ScopedAStatus onImeiMappingChanged(RadioIndicationType type,
+            const ::aidl::android::hardware::radio::modem::ImeiInfo& imeiInfo) override;
 };
 
 // The main test class for Radio AIDL Modem.