diff --git a/data/cncity/110000.txt b/data/cncity/110000.txt
index f5bbf903..fbfb4b52 100644
--- a/data/cncity/110000.txt
+++ b/data/cncity/110000.txt
@@ -1422,7 +1422,7 @@
 103.72.48.0/21
 103.72.128.0/21
 103.72.172.0/24
-103.72.224.0/24
+103.72.224.0/21
 103.74.24.0/21
 103.74.32.0/20
 103.74.48.0/22
diff --git a/data/country/CN.txt b/data/country/CN.txt
index 9b9c71e2..b4b4e48b 100644
--- a/data/country/CN.txt
+++ b/data/country/CN.txt
@@ -1712,7 +1712,7 @@
 103.72.120.0/22
 103.72.128.0/21
 103.72.172.0/24
-103.72.224.0/24
+103.72.224.0/21
 103.73.48.0/24
 103.73.51.0/24
 103.73.116.0/22
diff --git a/data/country/CN/CN-BJ.txt b/data/country/CN/CN-BJ.txt
index f5bbf903..fbfb4b52 100644
--- a/data/country/CN/CN-BJ.txt
+++ b/data/country/CN/CN-BJ.txt
@@ -1422,7 +1422,7 @@
 103.72.48.0/21
 103.72.128.0/21
 103.72.172.0/24
-103.72.224.0/24
+103.72.224.0/21
 103.74.24.0/21
 103.74.32.0/20
 103.74.48.0/22
diff --git a/data/special/china.txt b/data/special/china.txt
index fba52595..ef191631 100644
--- a/data/special/china.txt
+++ b/data/special/china.txt
@@ -1698,7 +1698,7 @@
 103.72.120.0/22
 103.72.128.0/21
 103.72.172.0/24
-103.72.224.0/24
+103.72.224.0/21
 103.73.48.0/24
 103.73.51.0/24
 103.73.116.0/22