diff --git a/data/cncity/430400.txt b/data/cncity/430400.txt
index a806e28a..8c288c4f 100644
--- a/data/cncity/430400.txt
+++ b/data/cncity/430400.txt
@@ -92,7 +92,8 @@
 124.228.0.0/16
 124.233.200.0/22
 124.233.248.0/22
-175.6.192.0/18
+175.6.192.0/19
+175.6.240.0/20
 202.103.102.0/24
 202.103.119.0/24
 202.103.121.0/24
diff --git a/data/cncity/431000.txt b/data/cncity/431000.txt
index 6974bd22..1bfb07a9 100644
--- a/data/cncity/431000.txt
+++ b/data/cncity/431000.txt
@@ -100,6 +100,7 @@
 124.231.0.0/17
 124.233.160.0/22
 124.233.214.0/23
+175.6.224.0/20
 183.214.32.0/24
 183.214.41.0/24
 202.103.85.0/24
diff --git a/data/isp/chinatelecom.txt b/data/isp/chinatelecom.txt
index 94cca996..35a210cc 100644
--- a/data/isp/chinatelecom.txt
+++ b/data/isp/chinatelecom.txt
@@ -1475,6 +1475,7 @@
 175.4.64.0/20
 175.4.80.0/22
 175.4.102.0/24
+175.6.224.0/20
 175.7.0.0/16
 175.8.0.0/13
 175.30.0.0/15
diff --git a/data/isp/chinaunicom.txt b/data/isp/chinaunicom.txt
index ce0faee7..025a1855 100644
--- a/data/isp/chinaunicom.txt
+++ b/data/isp/chinaunicom.txt
@@ -2316,6 +2316,7 @@
 123.5.106.0/23
 123.5.108.0/22
 123.5.112.0/20
+123.6.64.0/21
 123.7.18.0/23
 123.7.20.0/23
 123.7.22.0/24