diff --git a/backend/package.json b/backend/package.json
index 6def78c..d0cc833 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.14.409",
+  "version": "2.14.410",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and ShadowRocket.",
   "main": "src/main.js",
   "scripts": {
diff --git a/backend/src/utils/geo.js b/backend/src/utils/geo.js
index b3ae4e8..385b5f9 100644
--- a/backend/src/utils/geo.js
+++ b/backend/src/utils/geo.js
@@ -474,4 +474,7 @@ export class MMDB {
     ipaso(ip) {
         return this.asnReader?.asn(ip)?.autonomousSystemOrganization;
     }
+    ipasn(ip) {
+        return this.asnReader?.asn(ip)?.autonomousSystemNumber;
+    }
 }
diff --git a/scripts/demo.js b/scripts/demo.js
index 4326e54..f3ad222 100644
--- a/scripts/demo.js
+++ b/scripts/demo.js
@@ -67,6 +67,7 @@ function operator(proxies = [], targetPlatform, context) {
   //     getISO, // 获取 ISO 3166-1 alpha-2 代码
   //     Gist, // Gist 类
   //     download, // 内部的下载方法, 见 backend/src/utils/download.js
+  //     MMDB, // Node.js 环境 可用于模拟 Surge/Loon 的 $utils.ipasn, $utils.ipaso, $utils.geoip. 具体见 https://t.me/zhetengsha/1269
   // }
 
   // 如果只是为了快速修改或者筛选 可以参考 脚本操作支持节点快捷脚本 https://t.me/zhetengsha/970 和 脚本筛选支持节点快捷脚本 https://t.me/zhetengsha/1009