diff --git a/data/cncity/110000.txt b/data/cncity/110000.txt
index 94a17a80..bcdfaf4c 100644
--- a/data/cncity/110000.txt
+++ b/data/cncity/110000.txt
@@ -1876,7 +1876,7 @@
 115.170.128.0/17
 115.171.0.0/16
 115.172.46.0/23
-115.175.128.0/17
+115.175.240.0/20
 115.180.255.0/24
 115.181.56.0/21
 115.181.112.0/20
diff --git a/data/cncity/440000.txt b/data/cncity/440000.txt
index b666e4ee..d6733664 100644
--- a/data/cncity/440000.txt
+++ b/data/cncity/440000.txt
@@ -823,6 +823,9 @@
 115.172.184.0/21
 115.173.32.0/19
 115.174.64.0/19
+115.175.128.0/18
+115.175.192.0/19
+115.175.224.0/20
 115.181.240.0/20
 116.0.8.0/21
 116.0.24.0/21
diff --git a/data/cncity/440100.txt b/data/cncity/440100.txt
index e591c78b..f2b10a73 100644
--- a/data/cncity/440100.txt
+++ b/data/cncity/440100.txt
@@ -655,6 +655,9 @@
 115.172.0.0/19
 115.172.96.0/19
 115.172.184.0/21
+115.175.128.0/18
+115.175.192.0/19
+115.175.224.0/20
 116.6.11.0/24
 116.6.30.0/23
 116.6.32.0/22
diff --git a/data/country/CN/CN-BJ.txt b/data/country/CN/CN-BJ.txt
index 94a17a80..bcdfaf4c 100644
--- a/data/country/CN/CN-BJ.txt
+++ b/data/country/CN/CN-BJ.txt
@@ -1876,7 +1876,7 @@
 115.170.128.0/17
 115.171.0.0/16
 115.172.46.0/23
-115.175.128.0/17
+115.175.240.0/20
 115.180.255.0/24
 115.181.56.0/21
 115.181.112.0/20
diff --git a/data/country/CN/CN-GD.txt b/data/country/CN/CN-GD.txt
index b666e4ee..d6733664 100644
--- a/data/country/CN/CN-GD.txt
+++ b/data/country/CN/CN-GD.txt
@@ -823,6 +823,9 @@
 115.172.184.0/21
 115.173.32.0/19
 115.174.64.0/19
+115.175.128.0/18
+115.175.192.0/19
+115.175.224.0/20
 115.181.240.0/20
 116.0.8.0/21
 116.0.24.0/21