diff --git a/telephony/java/android/telephony/CarrierConfigManager.java b/telephony/java/android/telephony/CarrierConfigManager.java
index d3fc033e1b1d..95b9fda34211 100644
--- a/telephony/java/android/telephony/CarrierConfigManager.java
+++ b/telephony/java/android/telephony/CarrierConfigManager.java
@@ -3717,6 +3717,17 @@ public class CarrierConfigManager {
     public static final String KEY_ESIM_MAX_DOWNLOAD_RETRY_ATTEMPTS_INT =
             "esim_max_download_retry_attempts_int";
 
+    /**
+     * List of opportunistic carrier-ids associated with CBRS Primary SIM. When CBRS pSIM is
+     * inserted, opportunistic eSIM is download and this configuration is used for grouping pSIM
+     * and opportunistic eSIM. Also when a new CBRS pSIM is inserted, old opportunistic eSIMs are
+     * deleted using the carrier-ids in this configuration.
+     *
+     * @hide
+     */
+    public static final String KEY_OPPORTUNISTIC_CARRIER_IDS_INT_ARRAY =
+            "opportunistic_carrier_ids_int_array";
+
     /**
      * Controls RSRP threshold at which OpportunisticNetworkService will decide whether
      * the opportunistic network is good enough for internet data.
@@ -5774,6 +5785,7 @@ public class CarrierConfigManager {
         sDefaults.putString(KEY_SMDP_SERVER_ADDRESS_STRING, "");
         sDefaults.putInt(KEY_ESIM_MAX_DOWNLOAD_RETRY_ATTEMPTS_INT, 5);
         sDefaults.putInt(KEY_ESIM_DOWNLOAD_RETRY_BACKOFF_TIMER_SEC_INT, 60);
+        sDefaults.putIntArray(KEY_OPPORTUNISTIC_CARRIER_IDS_INT_ARRAY, new int[] {0});
         /* Default value is minimum RSRP level needed for SIGNAL_STRENGTH_GOOD */
         sDefaults.putInt(KEY_OPPORTUNISTIC_NETWORK_ENTRY_THRESHOLD_RSRP_INT, -108);
         /* Default value is minimum RSRP level needed for SIGNAL_STRENGTH_MODERATE */