diff --git a/src/main/java/io/github/dsheirer/alias/id/talkgroup/TalkgroupFormat.java b/src/main/java/io/github/dsheirer/alias/id/talkgroup/TalkgroupFormat.java
index 821cb8bc..ea93c6e3 100644
--- a/src/main/java/io/github/dsheirer/alias/id/talkgroup/TalkgroupFormat.java
+++ b/src/main/java/io/github/dsheirer/alias/id/talkgroup/TalkgroupFormat.java
@@ -47,8 +47,8 @@ public enum TalkgroupFormat
         "<html>MPT-1327 valid ranges are 0-127(prefix)<br>and 1-8192(ident) (ie. 000-0001 to 127-8192)"),
     NBFM("*****", 1, 0xFFFF, "1 to 65,535",
             "NBFM valid value range is 1-65,535"),
-    NXDN("*****", 1, 0xFFFF, "1 to 65,535",
-            "NXDN talkgroup valid range is 1 to 65,535"),
+    NXDN("*****", 0, 0xFFFF, "0 to 65,535",
+            "NXDN talkgroup valid range is 0 to 65,535"),
     PASSPORT("*****", 1, 0xFFFF, "1 to 65,535",
         "Passport valid value range is 1-65,535"),
     UNKNOWN("********", 1, 0xFFFFFF, "1 to 16,777,215",
diff --git a/src/main/java/io/github/dsheirer/gui/playlist/alias/identifier/TalkgroupEditor.java b/src/main/java/io/github/dsheirer/gui/playlist/alias/identifier/TalkgroupEditor.java
index a8c8f69d..6825167e 100644
--- a/src/main/java/io/github/dsheirer/gui/playlist/alias/identifier/TalkgroupEditor.java
+++ b/src/main/java/io/github/dsheirer/gui/playlist/alias/identifier/TalkgroupEditor.java
@@ -263,10 +263,10 @@ public class TalkgroupEditor extends IdentifierEditor<Talkgroup>
                 "Format: 1 - 65535"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.NBFM, IntegerFormat.HEXADECIMAL, new HexFormatter(1,0xFFFF),
                 "Format: 1 - FFFF"));
-        mTalkgroupDetails.add(new TalkgroupDetail(Protocol.NXDN, IntegerFormat.DECIMAL, new IntegerFormatter(1,0xFFFF),
-                "Format: 1 - 65,535"));
-        mTalkgroupDetails.add(new TalkgroupDetail(Protocol.NXDN, IntegerFormat.HEXADECIMAL, new HexFormatter(1,0xFFFF),
-                "Format: 1 - FFFF"));
+        mTalkgroupDetails.add(new TalkgroupDetail(Protocol.NXDN, IntegerFormat.DECIMAL, new IntegerFormatter(0,0xFFFF),
+                "Format: 0 - 65,535"));
+        mTalkgroupDetails.add(new TalkgroupDetail(Protocol.NXDN, IntegerFormat.HEXADECIMAL, new HexFormatter(0,0xFFFF),
+                "Format: 0 - FFFF"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.PASSPORT, IntegerFormat.DECIMAL, new IntegerFormatter(0,0xFFFF),
                 "Format: 0 - 65535"));
         mTalkgroupDetails.add(new TalkgroupDetail(Protocol.PASSPORT, IntegerFormat.HEXADECIMAL, new HexFormatter(0,0xFFFF),