diff --git a/ipv4/us.cidr b/ipv4/us.cidr
index 5d0140643..ca14fa9cc 100644
--- a/ipv4/us.cidr
+++ b/ipv4/us.cidr
@@ -21852,7 +21852,7 @@
 199.20.0.0/16
 199.21.0.0/18
 199.21.64.0/19
-199.21.102.0/23
+199.21.100.0/22
 199.21.104.0/21
 199.21.112.0/20
 199.21.128.0/20