diff --git a/data/cncity/310000.txt b/data/cncity/310000.txt
index bcfdede7..ea418deb 100644
--- a/data/cncity/310000.txt
+++ b/data/cncity/310000.txt
@@ -404,7 +404,6 @@
 101.224.0.0/13
 101.244.0.0/16
 101.245.4.0/22
-101.245.20.0/22
 101.245.24.0/21
 101.245.128.0/17
 101.251.64.0/20
diff --git a/data/cncity/520000.txt b/data/cncity/520000.txt
index 57a2f575..7bf1b42f 100644
--- a/data/cncity/520000.txt
+++ b/data/cncity/520000.txt
@@ -72,7 +72,7 @@
 101.238.0.0/16
 101.245.0.0/22
 101.245.8.0/21
-101.245.16.0/22
+101.245.16.0/21
 101.245.32.0/19
 101.245.64.0/18
 103.3.152.0/22
diff --git a/data/cncity/520100.txt b/data/cncity/520100.txt
index acfb38dd..24ec6f8b 100644
--- a/data/cncity/520100.txt
+++ b/data/cncity/520100.txt
@@ -110,7 +110,7 @@
 61.243.44.0/24
 101.245.0.0/22
 101.245.8.0/21
-101.245.16.0/22
+101.245.16.0/21
 101.245.32.0/19
 101.245.64.0/18
 103.3.152.0/22
diff --git a/data/country/CN/CN-GZ.txt b/data/country/CN/CN-GZ.txt
index 57a2f575..7bf1b42f 100644
--- a/data/country/CN/CN-GZ.txt
+++ b/data/country/CN/CN-GZ.txt
@@ -72,7 +72,7 @@
 101.238.0.0/16
 101.245.0.0/22
 101.245.8.0/21
-101.245.16.0/22
+101.245.16.0/21
 101.245.32.0/19
 101.245.64.0/18
 103.3.152.0/22
diff --git a/data/country/CN/CN-SH.txt b/data/country/CN/CN-SH.txt
index bcfdede7..ea418deb 100644
--- a/data/country/CN/CN-SH.txt
+++ b/data/country/CN/CN-SH.txt
@@ -404,7 +404,6 @@
 101.224.0.0/13
 101.244.0.0/16
 101.245.4.0/22
-101.245.20.0/22
 101.245.24.0/21
 101.245.128.0/17
 101.251.64.0/20
diff --git a/data/isp/drpeng.txt b/data/isp/drpeng.txt
index c020c8e0..494fae51 100644
--- a/data/isp/drpeng.txt
+++ b/data/isp/drpeng.txt
@@ -116,7 +116,6 @@
 101.232.0.0/15
 101.244.0.0/16
 101.245.4.0/22
-101.245.20.0/22
 101.245.24.0/21
 101.245.128.0/17
 101.246.0.0/18
diff --git a/data/isp/huawei.txt b/data/isp/huawei.txt
index 326f2026..7f3d43d1 100644
--- a/data/isp/huawei.txt
+++ b/data/isp/huawei.txt
@@ -18,7 +18,7 @@
 101.106.0.0/19
 101.245.0.0/22
 101.245.8.0/21
-101.245.16.0/22
+101.245.16.0/21
 101.245.32.0/19
 101.245.64.0/18
 103.31.200.0/22