diff --git a/all/ipv6.txt b/all/ipv6.txt
index 4e89933f..d3a60ca3 100644
--- a/all/ipv6.txt
+++ b/all/ipv6.txt
@@ -238460,7 +238460,8 @@
 2600:f0fb:8000::/40
 2600:f0fb:c0ff::/56
 2600:f0fb:c002::/56
-2600:f0fb:c800::/56
+2600:f0fb:c800::/48
+2600:f0fb:c801::/48
 2600:f0fb:c900::/52
 2600:f0fb:ca00::/52
 2600:f0fb:e000::/40
diff --git a/all/ipv6_merged.txt b/all/ipv6_merged.txt
index 24e511bc..ec5bf100 100644
--- a/all/ipv6_merged.txt
+++ b/all/ipv6_merged.txt
@@ -12252,7 +12252,7 @@
 2600:f0fb:8000::/40
 2600:f0fb:c0ff::/56
 2600:f0fb:c002::/56
-2600:f0fb:c800::/56
+2600:f0fb:c800::/47
 2600:f0fb:c900::/52
 2600:f0fb:ca00::/52
 2600:f0fb:e000::/36
diff --git a/amazon/ipv6.txt b/amazon/ipv6.txt
index e6ad5dde..99b7eaf5 100644
--- a/amazon/ipv6.txt
+++ b/amazon/ipv6.txt
@@ -2558,7 +2558,8 @@
 2600:f0fb:8000::/40
 2600:f0fb:c0ff::/56
 2600:f0fb:c002::/56
-2600:f0fb:c800::/56
+2600:f0fb:c800::/48
+2600:f0fb:c801::/48
 2600:f0fb:c900::/52
 2600:f0fb:ca00::/52
 2600:f0fb:e000::/40
diff --git a/amazon/ipv6_merged.txt b/amazon/ipv6_merged.txt
index 31970fb3..1046a26f 100644
--- a/amazon/ipv6_merged.txt
+++ b/amazon/ipv6_merged.txt
@@ -1751,7 +1751,7 @@
 2600:f0fb:8000::/40
 2600:f0fb:c0ff::/56
 2600:f0fb:c002::/56
-2600:f0fb:c800::/56
+2600:f0fb:c800::/47
 2600:f0fb:c900::/52
 2600:f0fb:ca00::/52
 2600:f0fb:e000::/36