diff --git a/i18n-lands.js b/i18n-lands.js
index 51213da..1a1298c 100644
--- a/i18n-lands.js
+++ b/i18n-lands.js
@@ -1741,7 +1741,7 @@ module.exports = {
     legalstatus: '1',
     name: { enUS: 'Iran', native: '‫ایران‬‎', zhCN: '伊朗', zhHK: '伊朗', zhTW: '伊朗' },
     namefull: { enUS: 'the Islamic Republic of Iran', zhCN: '伊朗伊斯兰共和国' },
-    notes: '',
+    notes: '号码为10位数，但是前面可能多出一位0',
     timezone: '-4',
   },
   IS: {