diff --git a/library/common/src/main/java/com/google/android/exoplayer2/util/Util.java b/library/common/src/main/java/com/google/android/exoplayer2/util/Util.java
index 13f61dec56..7fa26a94f4 100644
--- a/library/common/src/main/java/com/google/android/exoplayer2/util/Util.java
+++ b/library/common/src/main/java/com/google/android/exoplayer2/util/Util.java
@@ -2377,7 +2377,7 @@ public final class Util {
       case TelephonyManager.NETWORK_TYPE_LTE:
         return C.NETWORK_TYPE_4G;
       case TelephonyManager.NETWORK_TYPE_NR:
-        return C.NETWORK_TYPE_5G;
+        return SDK_INT >= 29 ? C.NETWORK_TYPE_5G : C.NETWORK_TYPE_UNKNOWN;
       case TelephonyManager.NETWORK_TYPE_IWLAN:
         return C.NETWORK_TYPE_WIFI;
       case TelephonyManager.NETWORK_TYPE_GSM: