diff --git a/framework-t/src/android/net/NetworkIdentity.java b/framework-t/src/android/net/NetworkIdentity.java
index 350ed86..48e5092 100644
--- a/framework-t/src/android/net/NetworkIdentity.java
+++ b/framework-t/src/android/net/NetworkIdentity.java
@@ -34,8 +34,8 @@
 import android.telephony.TelephonyManager;
 import android.util.proto.ProtoOutputStream;
 
+import com.android.net.module.util.BitUtils;
 import com.android.net.module.util.CollectionUtils;
-import com.android.net.module.util.NetworkCapabilitiesUtils;
 import com.android.net.module.util.NetworkIdentityUtils;
 
 import java.lang.annotation.Retention;
@@ -172,7 +172,7 @@
         if (oemManaged == OEM_NONE) {
             return "OEM_NONE";
         }
-        final int[] bitPositions = NetworkCapabilitiesUtils.unpackBits(oemManaged);
+        final int[] bitPositions = BitUtils.unpackBits(oemManaged);
         final ArrayList<String> oemManagedNames = new ArrayList<String>();
         for (int position : bitPositions) {
             oemManagedNames.add(nameOfOemManaged(1 << position));
diff --git a/framework/src/android/net/NetworkCapabilities.java b/framework/src/android/net/NetworkCapabilities.java
index 38fead5..e7d049f 100644
--- a/framework/src/android/net/NetworkCapabilities.java
+++ b/framework/src/android/net/NetworkCapabilities.java
@@ -17,6 +17,7 @@
 package android.net;
 
 import static com.android.internal.annotations.VisibleForTesting.Visibility.PRIVATE;
+import static com.android.net.module.util.BitUtils.appendStringRepresentationOfBitMaskToStringBuilder;
 
 import android.annotation.IntDef;
 import android.annotation.LongDef;
@@ -36,6 +37,7 @@
 import android.util.Range;
 
 import com.android.internal.annotations.VisibleForTesting;
+import com.android.net.module.util.BitUtils;
 import com.android.net.module.util.CollectionUtils;
 import com.android.net.module.util.NetworkCapabilitiesUtils;
 
@@ -217,7 +219,7 @@
         if (hasCapability(NET_CAPABILITY_ENTERPRISE) && mEnterpriseId == 0) {
             return new int[]{NET_ENTERPRISE_ID_1};
         }
-        return NetworkCapabilitiesUtils.unpackBits(mEnterpriseId);
+        return BitUtils.unpackBits(mEnterpriseId);
     }
 
     /**
@@ -643,7 +645,7 @@
      * Network capabilities that are expected to be mutable, i.e., can change while a particular
      * network is connected.
      */
-    private static final long MUTABLE_CAPABILITIES = NetworkCapabilitiesUtils.packBitList(
+    private static final long MUTABLE_CAPABILITIES = BitUtils.packBitList(
             // TRUSTED can change when user explicitly connects to an untrusted network in Settings.
             // http://b/18206275
             NET_CAPABILITY_TRUSTED,
@@ -678,7 +680,7 @@
     /**
      * Capabilities that are set by default when the object is constructed.
      */
-    private static final long DEFAULT_CAPABILITIES = NetworkCapabilitiesUtils.packBitList(
+    private static final long DEFAULT_CAPABILITIES = BitUtils.packBitList(
             NET_CAPABILITY_NOT_RESTRICTED,
             NET_CAPABILITY_TRUSTED,
             NET_CAPABILITY_NOT_VPN);
@@ -687,7 +689,7 @@
      * Capabilities that are managed by ConnectivityService.
      */
     private static final long CONNECTIVITY_MANAGED_CAPABILITIES =
-            NetworkCapabilitiesUtils.packBitList(
+            BitUtils.packBitList(
                     NET_CAPABILITY_VALIDATED,
                     NET_CAPABILITY_CAPTIVE_PORTAL,
                     NET_CAPABILITY_FOREGROUND,
@@ -700,7 +702,7 @@
      * INTERNET, IMS, SUPL, etc.
      */
     private static final long TEST_NETWORKS_ALLOWED_CAPABILITIES =
-            NetworkCapabilitiesUtils.packBitList(
+            BitUtils.packBitList(
             NET_CAPABILITY_NOT_METERED,
             NET_CAPABILITY_TEMPORARILY_NOT_METERED,
             NET_CAPABILITY_NOT_RESTRICTED,
@@ -800,7 +802,7 @@
      * @return an array of capability values for this instance.
      */
     public @NonNull @NetCapability int[] getCapabilities() {
-        return NetworkCapabilitiesUtils.unpackBits(mNetworkCapabilities);
+        return BitUtils.unpackBits(mNetworkCapabilities);
     }
 
     /**
@@ -810,7 +812,7 @@
      * @hide
      */
     public @NetCapability int[] getForbiddenCapabilities() {
-        return NetworkCapabilitiesUtils.unpackBits(mForbiddenNetworkCapabilities);
+        return BitUtils.unpackBits(mForbiddenNetworkCapabilities);
     }
 
 
@@ -822,8 +824,8 @@
      */
     public void setCapabilities(@NetCapability int[] capabilities,
             @NetCapability int[] forbiddenCapabilities) {
-        mNetworkCapabilities = NetworkCapabilitiesUtils.packBits(capabilities);
-        mForbiddenNetworkCapabilities = NetworkCapabilitiesUtils.packBits(forbiddenCapabilities);
+        mNetworkCapabilities = BitUtils.packBits(capabilities);
+        mForbiddenNetworkCapabilities = BitUtils.packBits(forbiddenCapabilities);
     }
 
     /**
@@ -960,7 +962,7 @@
                 & NON_REQUESTABLE_CAPABILITIES;
 
         if (nonRequestable != 0) {
-            return capabilityNameOf(NetworkCapabilitiesUtils.unpackBits(nonRequestable)[0]);
+            return capabilityNameOf(BitUtils.unpackBits(nonRequestable)[0]);
         }
         if (mLinkUpBandwidthKbps != 0 || mLinkDownBandwidthKbps != 0) return "link bandwidth";
         if (hasSignalStrength()) return "signalStrength";
@@ -1193,7 +1195,7 @@
      * Allowed transports on an unrestricted test network (in addition to TRANSPORT_TEST).
      */
     private static final long UNRESTRICTED_TEST_NETWORKS_ALLOWED_TRANSPORTS =
-            NetworkCapabilitiesUtils.packBitList(
+            BitUtils.packBitList(
                     TRANSPORT_TEST,
                     // Test eth networks are created with EthernetManager#setIncludeTestInterfaces
                     TRANSPORT_ETHERNET,
@@ -1258,7 +1260,7 @@
      */
     @SystemApi
     @NonNull public @Transport int[] getTransportTypes() {
-        return NetworkCapabilitiesUtils.unpackBits(mTransportTypes);
+        return BitUtils.unpackBits(mTransportTypes);
     }
 
     /**
@@ -1268,7 +1270,7 @@
      * @hide
      */
     public void setTransportTypes(@Transport int[] transportTypes) {
-        mTransportTypes = NetworkCapabilitiesUtils.packBits(transportTypes);
+        mTransportTypes = BitUtils.packBits(transportTypes);
     }
 
     /**
@@ -2041,9 +2043,9 @@
         long oldImmutableCapabilities = this.mNetworkCapabilities & mask;
         long newImmutableCapabilities = that.mNetworkCapabilities & mask;
         if (oldImmutableCapabilities != newImmutableCapabilities) {
-            String before = capabilityNamesOf(NetworkCapabilitiesUtils.unpackBits(
+            String before = capabilityNamesOf(BitUtils.unpackBits(
                     oldImmutableCapabilities));
-            String after = capabilityNamesOf(NetworkCapabilitiesUtils.unpackBits(
+            String after = capabilityNamesOf(BitUtils.unpackBits(
                     newImmutableCapabilities));
             joiner.add(String.format("immutable capabilities changed: %s -> %s", before, after));
         }
@@ -2313,32 +2315,6 @@
         return sb.toString();
     }
 
-
-    private interface NameOf {
-        String nameOf(int value);
-    }
-
-    /**
-     * @hide
-     */
-    public static void appendStringRepresentationOfBitMaskToStringBuilder(@NonNull StringBuilder sb,
-            long bitMask, @NonNull NameOf nameFetcher, @NonNull String separator) {
-        int bitPos = 0;
-        boolean firstElementAdded = false;
-        while (bitMask != 0) {
-            if ((bitMask & 1) != 0) {
-                if (firstElementAdded) {
-                    sb.append(separator);
-                } else {
-                    firstElementAdded = true;
-                }
-                sb.append(nameFetcher.nameOf(bitPos));
-            }
-            bitMask >>>= 1;
-            ++bitPos;
-        }
-    }
-
     /**
      * @hide
      */
diff --git a/service/src/com/android/server/ConnectivityService.java b/service/src/com/android/server/ConnectivityService.java
index f8b47d2..d409d51 100755
--- a/service/src/com/android/server/ConnectivityService.java
+++ b/service/src/com/android/server/ConnectivityService.java
@@ -249,13 +249,13 @@
 import com.android.modules.utils.BasicShellCommandHandler;
 import com.android.modules.utils.build.SdkLevel;
 import com.android.net.module.util.BaseNetdUnsolicitedEventListener;
+import com.android.net.module.util.BitUtils;
 import com.android.net.module.util.CollectionUtils;
 import com.android.net.module.util.DeviceConfigUtils;
 import com.android.net.module.util.InterfaceParams;
 import com.android.net.module.util.LinkPropertiesUtils.CompareOrUpdateResult;
 import com.android.net.module.util.LinkPropertiesUtils.CompareResult;
 import com.android.net.module.util.LocationPermissionChecker;
-import com.android.net.module.util.NetworkCapabilitiesUtils;
 import com.android.net.module.util.PerUidCounter;
 import com.android.net.module.util.PermissionUtils;
 import com.android.net.module.util.TcUtils;
@@ -7843,7 +7843,7 @@
             @NonNull NetworkCapabilities agentCaps, @NonNull NetworkCapabilities newNc) {
         underlyingNetworks = underlyingNetworksOrDefault(
                 agentCaps.getOwnerUid(), underlyingNetworks);
-        long transportTypes = NetworkCapabilitiesUtils.packBits(agentCaps.getTransportTypes());
+        long transportTypes = BitUtils.packBits(agentCaps.getTransportTypes());
         int downKbps = NetworkCapabilities.LINK_BANDWIDTH_UNSPECIFIED;
         int upKbps = NetworkCapabilities.LINK_BANDWIDTH_UNSPECIFIED;
         // metered if any underlying is metered, or originally declared metered by the agent.
@@ -7896,7 +7896,7 @@
             suspended = false;
         }
 
-        newNc.setTransportTypes(NetworkCapabilitiesUtils.unpackBits(transportTypes));
+        newNc.setTransportTypes(BitUtils.unpackBits(transportTypes));
         newNc.setLinkDownstreamBandwidthKbps(downKbps);
         newNc.setLinkUpstreamBandwidthKbps(upKbps);
         newNc.setCapability(NET_CAPABILITY_NOT_METERED, !metered);
diff --git a/tests/common/java/android/net/metrics/IpConnectivityLogTest.java b/tests/common/java/android/net/metrics/IpConnectivityLogTest.java
index 93cf748..b6e9b95 100644
--- a/tests/common/java/android/net/metrics/IpConnectivityLogTest.java
+++ b/tests/common/java/android/net/metrics/IpConnectivityLogTest.java
@@ -19,7 +19,7 @@
 import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
 import static android.net.NetworkCapabilities.TRANSPORT_WIFI;
 
-import static com.android.net.module.util.NetworkCapabilitiesUtils.unpackBits;
+import static com.android.net.module.util.BitUtils.unpackBits;
 
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;