diff --git a/data/inetnum/172.21.100.128_25 b/data/inetnum/172.21.100.128_25
index 2fd5aed0d..7bb275a93 100644
--- a/data/inetnum/172.21.100.128_25
+++ b/data/inetnum/172.21.100.128_25
@@ -1,4 +1,4 @@
-inetnum:            172.21.100.128 - 172.23.182.255
+inetnum:            172.21.100.128 - 172.21.100.255
 cidr:               172.21.100.128/25
 netname:            SUNNET-NETWORK
 descr:              SUNNET-NETWORK-IPV4