diff --git a/data/cncity/110000.txt b/data/cncity/110000.txt
index 96aad49a..6c283fe3 100644
--- a/data/cncity/110000.txt
+++ b/data/cncity/110000.txt
@@ -3099,7 +3099,6 @@
 203.95.96.0/19
 203.95.128.0/23
 203.99.16.0/22
-203.99.21.0/24
 203.99.28.0/22
 203.100.80.0/20
 203.100.192.0/20
diff --git a/data/country/CN.txt b/data/country/CN.txt
index ccc268e8..2cbc0cee 100644
--- a/data/country/CN.txt
+++ b/data/country/CN.txt
@@ -5065,7 +5065,6 @@
 203.95.224.0/19
 203.99.8.0/21
 203.99.16.0/22
-203.99.21.0/24
 203.99.28.0/22
 203.99.80.0/20
 203.100.32.0/20
diff --git a/data/country/CN/CN-BJ.txt b/data/country/CN/CN-BJ.txt
index 96aad49a..6c283fe3 100644
--- a/data/country/CN/CN-BJ.txt
+++ b/data/country/CN/CN-BJ.txt
@@ -3099,7 +3099,6 @@
 203.95.96.0/19
 203.95.128.0/23
 203.99.16.0/22
-203.99.21.0/24
 203.99.28.0/22
 203.100.80.0/20
 203.100.192.0/20
diff --git a/data/special/china.txt b/data/special/china.txt
index d72c5d01..6d162922 100644
--- a/data/special/china.txt
+++ b/data/special/china.txt
@@ -5001,7 +5001,6 @@
 203.95.224.0/19
 203.99.8.0/21
 203.99.16.0/22
-203.99.21.0/24
 203.99.28.0/22
 203.99.80.0/20
 203.100.32.0/20