diff --git a/all/ipv6.txt b/all/ipv6.txt
index 77cca895..4b4ab077 100644
--- a/all/ipv6.txt
+++ b/all/ipv6.txt
@@ -2070,6 +2070,7 @@
 2600:1ffa:8000::/40
 2600:1ffa:c000::/40
 2600:1ffa:e000::/40
+2600:1ffb:40c0::/46
 2600:1ffb:60c0::/48
 2600:1ffb:60c1::/48
 2600:1ffc:1000::/40
diff --git a/all/ipv6_merged.txt b/all/ipv6_merged.txt
index cd222999..6ab49504 100644
--- a/all/ipv6_merged.txt
+++ b/all/ipv6_merged.txt
@@ -621,6 +621,7 @@
 2600:1ffa:8000::/40
 2600:1ffa:c000::/40
 2600:1ffa:e000::/40
+2600:1ffb:40c0::/46
 2600:1ffb:60c0::/47
 2600:1ffc:1000::/40
 2600:1ffc:2000::/40
diff --git a/amazon/ipv6.txt b/amazon/ipv6.txt
index adfc4cd2..3a5a2232 100644
--- a/amazon/ipv6.txt
+++ b/amazon/ipv6.txt
@@ -630,6 +630,7 @@
 2600:1ffa:8000::/40
 2600:1ffa:c000::/40
 2600:1ffa:e000::/40
+2600:1ffb:40c0::/46
 2600:1ffb:60c0::/48
 2600:1ffb:60c1::/48
 2600:1ffc:1000::/40
diff --git a/amazon/ipv6_merged.txt b/amazon/ipv6_merged.txt
index a84f5d2d..b0c83afe 100644
--- a/amazon/ipv6_merged.txt
+++ b/amazon/ipv6_merged.txt
@@ -490,6 +490,7 @@
 2600:1ffa:8000::/40
 2600:1ffa:c000::/40
 2600:1ffa:e000::/40
+2600:1ffb:40c0::/46
 2600:1ffb:60c0::/47
 2600:1ffc:1000::/40
 2600:1ffc:2000::/40