diff --git a/all/ipv4.txt b/all/ipv4.txt
index 9d8c079d..378a9c63 100644
--- a/all/ipv4.txt
+++ b/all/ipv4.txt
@@ -516,6 +516,7 @@
 3.172.64.0/18
 3.173.0.0/17
 3.173.128.0/18
+3.174.0.0/15
 3.208.0.0/12
 3.208.72.176/28
 3.209.83.0/27
diff --git a/all/ipv4_merged.txt b/all/ipv4_merged.txt
index f9dcb689..a353a0a2 100644
--- a/all/ipv4_merged.txt
+++ b/all/ipv4_merged.txt
@@ -74,6 +74,7 @@
 3.172.0.0/17
 3.173.0.0/17
 3.173.128.0/18
+3.174.0.0/15
 3.208.0.0/12
 3.224.0.0/12
 3.248.0.0/13
diff --git a/amazon/ipv4.txt b/amazon/ipv4.txt
index f4019c06..ff622bb3 100644
--- a/amazon/ipv4.txt
+++ b/amazon/ipv4.txt
@@ -515,6 +515,7 @@
 3.172.64.0/18
 3.173.0.0/17
 3.173.128.0/18
+3.174.0.0/15
 3.208.0.0/12
 3.208.72.176/28
 3.209.83.0/27
diff --git a/amazon/ipv4_merged.txt b/amazon/ipv4_merged.txt
index 6af4b3df..c339d2b9 100644
--- a/amazon/ipv4_merged.txt
+++ b/amazon/ipv4_merged.txt
@@ -73,6 +73,7 @@
 3.172.0.0/17
 3.173.0.0/17
 3.173.128.0/18
+3.174.0.0/15
 3.208.0.0/12
 3.224.0.0/12
 3.248.0.0/13