diff --git a/all/ipv6.txt b/all/ipv6.txt
index 74c5ce8c..cc461ddc 100644
--- a/all/ipv6.txt
+++ b/all/ipv6.txt
@@ -238185,6 +238185,7 @@
 2600:f0f0:4::/48
 2600:f0f0:8::/48
 2600:f0f0:10::/48
+2600:f0f0:11ff::/48
 2600:f0f0:11::/48
 2600:f0f0:20::/48
 2600:f0f0:30e::/48
diff --git a/all/ipv6_merged.txt b/all/ipv6_merged.txt
index 6d994833..07d5cbda 100644
--- a/all/ipv6_merged.txt
+++ b/all/ipv6_merged.txt
@@ -11490,6 +11490,7 @@
 2600:f0f0:4::/48
 2600:f0f0:8::/48
 2600:f0f0:10::/47
+2600:f0f0:11ff::/48
 2600:f0f0:20::/48
 2600:f0f0:30e::/47
 2600:f0f0:30::/44
diff --git a/amazon/ipv6.txt b/amazon/ipv6.txt
index bac9a002..23c5e99f 100644
--- a/amazon/ipv6.txt
+++ b/amazon/ipv6.txt
@@ -1562,6 +1562,7 @@
 2600:f0f0:4::/48
 2600:f0f0:8::/48
 2600:f0f0:10::/48
+2600:f0f0:11ff::/48
 2600:f0f0:11::/48
 2600:f0f0:20::/48
 2600:f0f0:30e::/48
diff --git a/amazon/ipv6_merged.txt b/amazon/ipv6_merged.txt
index d3b8f7ef..b78f115e 100644
--- a/amazon/ipv6_merged.txt
+++ b/amazon/ipv6_merged.txt
@@ -1283,6 +1283,7 @@
 2600:f0f0:4::/48
 2600:f0f0:8::/48
 2600:f0f0:10::/47
+2600:f0f0:11ff::/48
 2600:f0f0:20::/48
 2600:f0f0:30e::/47
 2600:f0f0:30::/44