diff --git a/all/ipv4.txt b/all/ipv4.txt
index b55c7d0f..4fa48c33 100644
--- a/all/ipv4.txt
+++ b/all/ipv4.txt
@@ -8639,6 +8639,7 @@
 16.15.16.0/22
 16.15.20.0/22
 16.15.24.0/22
+16.15.28.0/22
 16.15.32.0/20
 16.15.48.0/23
 16.15.50.0/23
diff --git a/all/ipv4_merged.txt b/all/ipv4_merged.txt
index 2e1cf3ea..11302d93 100644
--- a/all/ipv4_merged.txt
+++ b/all/ipv4_merged.txt
@@ -483,10 +483,7 @@
 16.12.96.0/20
 16.12.112.0/21
 16.12.120.0/22
-16.15.0.0/20
-16.15.16.0/21
-16.15.24.0/22
-16.15.32.0/19
+16.15.0.0/18
 16.15.156.0/22
 16.15.160.0/19
 16.15.192.0/18
diff --git a/amazon/ipv4.txt b/amazon/ipv4.txt
index 8470b455..610fe454 100644
--- a/amazon/ipv4.txt
+++ b/amazon/ipv4.txt
@@ -2569,6 +2569,7 @@
 16.15.16.0/22
 16.15.20.0/22
 16.15.24.0/22
+16.15.28.0/22
 16.15.32.0/20
 16.15.48.0/23
 16.15.50.0/23
diff --git a/amazon/ipv4_merged.txt b/amazon/ipv4_merged.txt
index a533973f..f6bfb3b0 100644
--- a/amazon/ipv4_merged.txt
+++ b/amazon/ipv4_merged.txt
@@ -430,10 +430,7 @@
 16.12.96.0/20
 16.12.112.0/21
 16.12.120.0/22
-16.15.0.0/20
-16.15.16.0/21
-16.15.24.0/22
-16.15.32.0/19
+16.15.0.0/18
 16.15.156.0/22
 16.15.160.0/19
 16.15.192.0/18