diff --git a/all/ipv4.txt b/all/ipv4.txt
index dbe4ab57..85635322 100644
--- a/all/ipv4.txt
+++ b/all/ipv4.txt
@@ -3994,6 +3994,7 @@
 15.230.219.0/24
 15.230.22.0/24
 15.230.220.0/24
+15.230.221.0/24
 15.230.23.0/24
 15.230.24.0/22
 15.230.28.0/24
diff --git a/all/ipv4_merged.txt b/all/ipv4_merged.txt
index d3c90b3e..4d6ead4f 100644
--- a/all/ipv4_merged.txt
+++ b/all/ipv4_merged.txt
@@ -340,7 +340,7 @@
 15.230.217.0/24
 15.230.218.0/23
 15.230.22.0/23
-15.230.220.0/24
+15.230.220.0/23
 15.230.24.0/21
 15.230.32.0/24
 15.230.35.0/24
diff --git a/amazon/ipv4.txt b/amazon/ipv4.txt
index 0ec3edf2..3fdbdcba 100644
--- a/amazon/ipv4.txt
+++ b/amazon/ipv4.txt
@@ -1665,6 +1665,7 @@
 15.230.219.0/24
 15.230.22.0/24
 15.230.220.0/24
+15.230.221.0/24
 15.230.23.0/24
 15.230.24.0/22
 15.230.28.0/24
diff --git a/amazon/ipv4_merged.txt b/amazon/ipv4_merged.txt
index 5d109434..2459d6f7 100644
--- a/amazon/ipv4_merged.txt
+++ b/amazon/ipv4_merged.txt
@@ -248,7 +248,7 @@
 15.230.217.0/24
 15.230.218.0/23
 15.230.22.0/23
-15.230.220.0/24
+15.230.220.0/23
 15.230.24.0/21
 15.230.32.0/24
 15.230.35.0/24