diff --git a/all/ipv4.txt b/all/ipv4.txt
index 223ebf80..3263ac0f 100644
--- a/all/ipv4.txt
+++ b/all/ipv4.txt
@@ -4866,6 +4866,12 @@
 15.221.0.0/24
 15.221.1.0/24
 15.221.128.0/22
+15.221.132.0/22
+15.221.144.0/23
+15.221.146.0/23
+15.221.148.0/23
+15.221.150.0/23
+15.221.152.0/24
 15.221.16.0/22
 15.221.2.0/24
 15.221.20.0/22
diff --git a/all/ipv4_merged.txt b/all/ipv4_merged.txt
index 7dec0c49..ff42e42a 100644
--- a/all/ipv4_merged.txt
+++ b/all/ipv4_merged.txt
@@ -356,7 +356,9 @@
 15.220.216.0/21
 15.220.224.0/19
 15.221.0.0/19
-15.221.128.0/22
+15.221.128.0/21
+15.221.144.0/21
+15.221.152.0/24
 15.221.32.0/20
 15.221.48.0/22
 15.221.52.0/23
diff --git a/amazon/ipv4.txt b/amazon/ipv4.txt
index 364b0b94..d52baf8f 100644
--- a/amazon/ipv4.txt
+++ b/amazon/ipv4.txt
@@ -1815,6 +1815,12 @@
 15.221.0.0/24
 15.221.1.0/24
 15.221.128.0/22
+15.221.132.0/22
+15.221.144.0/23
+15.221.146.0/23
+15.221.148.0/23
+15.221.150.0/23
+15.221.152.0/24
 15.221.16.0/22
 15.221.2.0/24
 15.221.20.0/22
diff --git a/amazon/ipv4_merged.txt b/amazon/ipv4_merged.txt
index 8c71f0fc..e80111f4 100644
--- a/amazon/ipv4_merged.txt
+++ b/amazon/ipv4_merged.txt
@@ -213,7 +213,9 @@
 15.220.216.0/21
 15.220.224.0/19
 15.221.0.0/19
-15.221.128.0/22
+15.221.128.0/21
+15.221.144.0/21
+15.221.152.0/24
 15.221.32.0/20
 15.221.48.0/22
 15.221.52.0/23