diff --git a/all/ipv4.txt b/all/ipv4.txt
index 3c6d97e2..8a0a45a1 100644
--- a/all/ipv4.txt
+++ b/all/ipv4.txt
@@ -4026,6 +4026,7 @@
 16.168.0.0/15
 16.170.0.0/15
 16.170.199.0/26
+16.171.48.0/22
 16.50.0.0/15
 16.62.0.0/15
 18.100.0.0/15
diff --git a/amazon/ipv4.txt b/amazon/ipv4.txt
index 26cc672c..7a5f94d1 100644
--- a/amazon/ipv4.txt
+++ b/amazon/ipv4.txt
@@ -1801,6 +1801,7 @@
 16.168.0.0/15
 16.170.0.0/15
 16.170.199.0/26
+16.171.48.0/22
 16.50.0.0/15
 16.62.0.0/15
 18.100.0.0/15