diff --git a/data/inetnum/172.20.21.160_27 b/data/inetnum/172.20.21.160_27
index 937ce4723..e2365453d 100644
--- a/data/inetnum/172.20.21.160_27
+++ b/data/inetnum/172.20.21.160_27
@@ -1,4 +1,4 @@
-inetnum:            172.20.21.160 - 172.20.21.190
+inetnum:            172.20.21.160 - 172.20.21.191
 netname:            CCTV-IPV4
 remarks:            Peer with me at yownmngv11183@163.com
 descr:              Peer with me at yownmngv11183@163.com
@@ -10,4 +10,4 @@ nserver:            ns1.lantian.dn42
 nserver:            ns2.lantian.dn42
 status:             ASSIGNED
 cidr:               172.20.21.160/27
-source:             DN42
+source:             DN42
\ No newline at end of file