diff --git a/all/ipv6.txt b/all/ipv6.txt
index 8717e483..5982dec9 100644
--- a/all/ipv6.txt
+++ b/all/ipv6.txt
@@ -1586,7 +1586,7 @@
 2a05:d072:a000::/40
 2a05:d072:c000::/40
 2a05:d072:e000::/40
-2a05:d076:c000::/56
+2a05:d076:c000::/48
 2a05:d077:60c0::/48
 2a05:d077:60c1::/48
 2a05:d077:6040::/48
diff --git a/all/ipv6_merged.txt b/all/ipv6_merged.txt
index e6ce4fdb..3dce9345 100644
--- a/all/ipv6_merged.txt
+++ b/all/ipv6_merged.txt
@@ -238,7 +238,7 @@
 2a05:d072:a000::/40
 2a05:d072:c000::/40
 2a05:d072:e000::/40
-2a05:d076:c000::/56
+2a05:d076:c000::/48
 2a05:d077:60c0::/47
 2a05:d077:6040::/47
 2a05:d077:6080::/47
diff --git a/amazon/ipv6.txt b/amazon/ipv6.txt
index 88a3e190..e4cbd3b9 100644
--- a/amazon/ipv6.txt
+++ b/amazon/ipv6.txt
@@ -219,7 +219,7 @@
 2a05:d072:a000::/40
 2a05:d072:c000::/40
 2a05:d072:e000::/40
-2a05:d076:c000::/56
+2a05:d076:c000::/48
 2a05:d077:60c0::/48
 2a05:d077:60c1::/48
 2a05:d077:6040::/48
diff --git a/amazon/ipv6_merged.txt b/amazon/ipv6_merged.txt
index 9bfe2978..4b63b039 100644
--- a/amazon/ipv6_merged.txt
+++ b/amazon/ipv6_merged.txt
@@ -177,7 +177,7 @@
 2a05:d072:a000::/40
 2a05:d072:c000::/40
 2a05:d072:e000::/40
-2a05:d076:c000::/56
+2a05:d076:c000::/48
 2a05:d077:60c0::/47
 2a05:d077:6040::/47
 2a05:d077:6080::/47