diff --git a/all/ipv4.txt b/all/ipv4.txt
index 50748d30..1ce0f957 100644
--- a/all/ipv4.txt
+++ b/all/ipv4.txt
@@ -6983,6 +6983,7 @@
 18.64.0.0/14
 18.68.0.0/16
 18.88.0.0/18
+18.88.64.0/18
 18.88.128.0/18
 18.89.0.0/18
 18.89.128.0/18
diff --git a/all/ipv4_merged.txt b/all/ipv4_merged.txt
index bfd7baeb..a668b767 100644
--- a/all/ipv4_merged.txt
+++ b/all/ipv4_merged.txt
@@ -477,7 +477,7 @@
 18.60.0.0/15
 18.64.0.0/14
 18.68.0.0/16
-18.88.0.0/18
+18.88.0.0/17
 18.88.128.0/18
 18.89.0.0/18
 18.89.128.0/18
diff --git a/amazon/ipv4.txt b/amazon/ipv4.txt
index 549a1cbc..3c5618fc 100644
--- a/amazon/ipv4.txt
+++ b/amazon/ipv4.txt
@@ -2420,6 +2420,7 @@
 18.64.0.0/14
 18.68.0.0/16
 18.88.0.0/18
+18.88.64.0/18
 18.88.128.0/18
 18.89.0.0/18
 18.89.128.0/18
diff --git a/amazon/ipv4_merged.txt b/amazon/ipv4_merged.txt
index 137423a8..66b1cc38 100644
--- a/amazon/ipv4_merged.txt
+++ b/amazon/ipv4_merged.txt
@@ -427,7 +427,7 @@
 18.60.0.0/15
 18.64.0.0/14
 18.68.0.0/16
-18.88.0.0/18
+18.88.0.0/17
 18.88.128.0/18
 18.89.0.0/18
 18.89.128.0/18