diff --git a/ipv4/us.cidr b/ipv4/us.cidr
index 901ea074..484a2c5e 100644
--- a/ipv4/us.cidr
+++ b/ipv4/us.cidr
@@ -414,6 +414,7 @@
 23.131.216.0/24
 23.131.220.0/24
 23.131.224.0/24
+23.131.228.0/24
 23.131.240.0/24
 23.131.248.0/24
 23.132.8.0/24
diff --git a/ipv6/us.cidr b/ipv6/us.cidr
index df8b3428..b4d4e098 100644
--- a/ipv6/us.cidr
+++ b/ipv6/us.cidr
@@ -1012,6 +1012,7 @@
 2602:81a:c000::/44
 2602:81a:d000::/44
 2602:81a:e000::/44
+2602:f748::/36
 2602:f749::/40
 2602:f74a::/36
 2602:f74b::/40