diff --git a/telephony/java/android/telephony/CellIdentityNr.java b/telephony/java/android/telephony/CellIdentityNr.java
index e34bbfcde492c..1794ac5b723a3 100644
--- a/telephony/java/android/telephony/CellIdentityNr.java
+++ b/telephony/java/android/telephony/CellIdentityNr.java
@@ -37,7 +37,7 @@ public final class CellIdentityNr extends CellIdentity {
     private static final String TAG = "CellIdentityNr";
 
     private static final int MAX_PCI = 1007;
-    private static final int MAX_TAC = 65535;
+    private static final int MAX_TAC = 16777215; // 0xffffff
     private static final int MAX_NRARFCN = 3279165;
     private static final long MAX_NCI = 68719476735L;
 
@@ -53,7 +53,7 @@ public final class CellIdentityNr extends CellIdentity {
     /**
      *
      * @param pci Physical Cell Id in range [0, 1007].
-     * @param tac 16-bit Tracking Area Code.
+     * @param tac 24-bit Tracking Area Code.
      * @param nrArfcn NR Absolute Radio Frequency Channel Number, in range [0, 3279165].
      * @param bands Bands used by the cell. Band number defined in 3GPP TS 38.101-1 and TS 38.101-2.
      * @param mccStr 3-digit Mobile Country Code in string format.
@@ -199,7 +199,7 @@ public final class CellIdentityNr extends CellIdentity {
 
     /**
      * Get the tracking area code.
-     * @return a 16 bit integer or {@link CellInfo#UNAVAILABLE} if unknown.
+     * @return a 24 bit integer or {@link CellInfo#UNAVAILABLE} if unknown.
      */
     @IntRange(from = 0, to = 65535)
     public int getTac() {