diff --git a/packages/platforms/react-native/android/src/main/java/com/bugsnag/android/performance/ReactNativeSpanContext.java b/packages/platforms/react-native/android/src/main/java/com/bugsnag/android/performance/ReactNativeSpanContext.java
index 40192ac97..6dc536d59 100644
--- a/packages/platforms/react-native/android/src/main/java/com/bugsnag/android/performance/ReactNativeSpanContext.java
+++ b/packages/platforms/react-native/android/src/main/java/com/bugsnag/android/performance/ReactNativeSpanContext.java
@@ -6,14 +6,17 @@
 import java.util.concurrent.Callable;
 
 class ReactNativeSpanContext implements SpanContext {
+  private static final int HEX_RADIX = 16;
+  private static final int TRACE_ID_MIDPOINT = 16;
+
   private final long nativeSpanId;
   private final UUID nativeTraceId;
-
-  public ReactNativeSpanContext(String spanId, String traceId) {
-    nativeSpanId = Long.parseUnsignedLong(spanId, 16);
+  
+  ReactNativeSpanContext(String spanId, String traceId) {
+    nativeSpanId = Long.parseUnsignedLong(spanId, HEX_RADIX);
     nativeTraceId = new UUID(
-      Long.parseUnsignedLong(traceId.substring(0, 16), 16),
-      Long.parseUnsignedLong(traceId.substring(16), 16)
+      Long.parseUnsignedLong(traceId.substring(0, TRACE_ID_MIDPOINT), HEX_RADIX),
+      Long.parseUnsignedLong(traceId.substring(TRACE_ID_MIDPOINT), HEX_RADIX)
     );
   }