diff --git a/all/ipv6.txt b/all/ipv6.txt
index f1a25343..9003326a 100644
--- a/all/ipv6.txt
+++ b/all/ipv6.txt
@@ -235824,6 +235824,7 @@
 2406:da11:700:3b00::/56
 2406:da11::/36
 2406:da12:1e1:d900::/56
+2406:da12:8f1:3d00::/56
 2406:da12:8000::/36
 2406:da12::/36
 2406:da13::/36
diff --git a/amazon/ipv6.txt b/amazon/ipv6.txt
index 0286e446..1e85fa5f 100644
--- a/amazon/ipv6.txt
+++ b/amazon/ipv6.txt
@@ -598,6 +598,7 @@
 2406:da11:700:3b00::/56
 2406:da11::/36
 2406:da12:1e1:d900::/56
+2406:da12:8f1:3d00::/56
 2406:da12:8000::/36
 2406:da12::/36
 2406:da13::/36