diff --git a/all/ipv6.txt b/all/ipv6.txt
index 01af1214..c7379059 100644
--- a/all/ipv6.txt
+++ b/all/ipv6.txt
@@ -3087,7 +3087,6 @@
 2600:f0f0:0:300::/56
 2600:f0f0:1000::/44
 2600:f0f0:10::/48
-2600:f0f0:1:fd00::/56
 2600:f0f0:1:fe00::/56
 2600:f0f0:1:ff00::/56
 2600:f0f0:4000::/44
diff --git a/all/ipv6_merged.txt b/all/ipv6_merged.txt
index 5e98ec0e..e649d25f 100644
--- a/all/ipv6_merged.txt
+++ b/all/ipv6_merged.txt
@@ -924,7 +924,6 @@
 2600:f0f0:0:300::/56
 2600:f0f0:1000::/44
 2600:f0f0:10::/48
-2600:f0f0:1:fd00::/56
 2600:f0f0:1:fe00::/55
 2600:f0f0:4000::/44
 2600:f0f0:6000::/43
diff --git a/amazon/ipv6.txt b/amazon/ipv6.txt
index 98b5cb34..1256a722 100644
--- a/amazon/ipv6.txt
+++ b/amazon/ipv6.txt
@@ -931,7 +931,6 @@
 2600:f0f0:0:300::/56
 2600:f0f0:1000::/44
 2600:f0f0:10::/48
-2600:f0f0:1:fd00::/56
 2600:f0f0:1:fe00::/56
 2600:f0f0:1:ff00::/56
 2600:f0f0:4000::/44
diff --git a/amazon/ipv6_merged.txt b/amazon/ipv6_merged.txt
index 03abe070..37308320 100644
--- a/amazon/ipv6_merged.txt
+++ b/amazon/ipv6_merged.txt
@@ -747,7 +747,6 @@
 2600:f0f0:0:300::/56
 2600:f0f0:1000::/44
 2600:f0f0:10::/48
-2600:f0f0:1:fd00::/56
 2600:f0f0:1:fe00::/55
 2600:f0f0:4000::/44
 2600:f0f0:6000::/43