diff --git a/all/ipv4.txt b/all/ipv4.txt
index b955313a..6a0389d4 100644
--- a/all/ipv4.txt
+++ b/all/ipv4.txt
@@ -110608,7 +110608,6 @@
 204.216.208.0/20
 204.231.192.0/24
 204.231.194.0/23
-204.231.197.0/24
 204.231.198.0/23
 204.231.200.0/21
 204.231.208.0/20
diff --git a/all/ipv4_merged.txt b/all/ipv4_merged.txt
index 291f88f5..109aa225 100644
--- a/all/ipv4_merged.txt
+++ b/all/ipv4_merged.txt
@@ -7575,7 +7575,6 @@
 204.216.192.0/19
 204.231.192.0/24
 204.231.194.0/23
-204.231.197.0/24
 204.231.198.0/23
 204.231.200.0/21
 204.231.208.0/20
diff --git a/microsoft/ipv4.txt b/microsoft/ipv4.txt
index 5d173a99..ea5a3857 100644
--- a/microsoft/ipv4.txt
+++ b/microsoft/ipv4.txt
@@ -48927,7 +48927,6 @@
 204.152.140.0/23
 204.231.192.0/24
 204.231.194.0/23
-204.231.197.0/24
 204.231.198.0/23
 204.231.200.0/21
 204.231.208.0/20
diff --git a/microsoft/ipv4_merged.txt b/microsoft/ipv4_merged.txt
index bc92c41a..6f438a9e 100644
--- a/microsoft/ipv4_merged.txt
+++ b/microsoft/ipv4_merged.txt
@@ -429,7 +429,6 @@
 204.152.140.0/23
 204.231.192.0/24
 204.231.194.0/23
-204.231.197.0/24
 204.231.198.0/23
 204.231.200.0/21
 204.231.208.0/20