diff --git a/all/ipv4.txt b/all/ipv4.txt
index 23b7e649..5197f681 100644
--- a/all/ipv4.txt
+++ b/all/ipv4.txt
@@ -4922,6 +4922,7 @@
 13.200.142.112/30
 13.200.142.116/31
 13.201.195.64/30
+13.201.231.0/24
 13.202.0.0/15
 13.204.0.0/14
 13.208.0.0/16
diff --git a/amazon/ipv4.txt b/amazon/ipv4.txt
index 91bce4d5..ac61e76d 100644
--- a/amazon/ipv4.txt
+++ b/amazon/ipv4.txt
@@ -1725,6 +1725,7 @@
 13.200.142.112/30
 13.200.142.116/31
 13.201.195.64/30
+13.201.231.0/24
 13.202.0.0/15
 13.204.0.0/14
 13.208.0.0/16