diff --git a/all/ipv4.txt b/all/ipv4.txt
index 8099268f..08502b16 100644
--- a/all/ipv4.txt
+++ b/all/ipv4.txt
@@ -48813,6 +48813,7 @@
 100.48.0.0/12
 100.48.54.0/23
 100.49.198.0/23
+100.52.164.0/23
 102.37.0.0/16
 102.37.0.0/20
 102.37.16.0/21
diff --git a/amazon/ipv4.txt b/amazon/ipv4.txt
index 2e423a13..c88a52b6 100644
--- a/amazon/ipv4.txt
+++ b/amazon/ipv4.txt
@@ -6133,6 +6133,7 @@
 100.48.0.0/12
 100.48.54.0/23
 100.49.198.0/23
+100.52.164.0/23
 103.4.8.0/21
 103.8.172.0/22
 103.53.48.0/22