diff --git a/index.js b/index.js
index f5dddd2..bf34e24 100644
--- a/index.js
+++ b/index.js
@@ -36,7 +36,8 @@ var TIMEZONE_MAP = Object.freeze ({
   21: "America/Juneau",
   22: "America/Kentucky/Monticello",
   23: "America/North_Dakota/Center",
-  24: "America/Yakutat"
+  24: "America/Yakutat",
+	25: "Pacific/Guam"
 });
 /**
  * Looks up zipcode in zipcodes.json
diff --git a/zipcodes.json b/zipcodes.json
index d8ef888..3b910e8 100644
--- a/zipcodes.json
+++ b/zipcodes.json
@@ -41960,5 +41960,18 @@
     "08922": 0,
     "08933": 0,
     "08988": 0,
-    "08989": 0
+    "08989": 0,
+		"96910": 25,
+		"96912": 25,
+		"96913": 25,
+		"96915": 25,
+		"96916": 25,
+		"96917": 25,
+		"96919": 25,
+		"96921": 25,
+		"96923": 25,
+		"96928": 25,
+		"96929": 25,
+		"96931": 25,
+		"96932": 25
 }