diff --git a/all/ipv6.txt b/all/ipv6.txt
index c7ea9b0f..c5580955 100644
--- a/all/ipv6.txt
+++ b/all/ipv6.txt
@@ -233856,7 +233856,7 @@
 2406:da12:8000::/36
 2406:da12:a2e:9b00::/56
 2406:da12:ab7:7200::/56
-2406:da12::/36
+2406:da12::/35
 2406:da13::/36
 2406:da14:1c18:2100::/56
 2406:da14:7ff:f800::/56
diff --git a/all/ipv6_merged.txt b/all/ipv6_merged.txt
index ff8aae47..b8af1b57 100644
--- a/all/ipv6_merged.txt
+++ b/all/ipv6_merged.txt
@@ -11226,7 +11226,7 @@
 2406:da10:8000::/36
 2406:da11::/36
 2406:da12:8000::/36
-2406:da12::/36
+2406:da12::/35
 2406:da13::/36
 2406:da14:8000::/36
 2406:da14::/35
diff --git a/amazon/ipv6.txt b/amazon/ipv6.txt
index cbe8a24a..66f860be 100644
--- a/amazon/ipv6.txt
+++ b/amazon/ipv6.txt
@@ -811,7 +811,7 @@
 2406:da12:8000::/36
 2406:da12:a2e:9b00::/56
 2406:da12:ab7:7200::/56
-2406:da12::/36
+2406:da12::/35
 2406:da13::/36
 2406:da14:1c18:2100::/56
 2406:da14:7ff:f800::/56
diff --git a/amazon/ipv6_merged.txt b/amazon/ipv6_merged.txt
index d2088d26..59b48aaa 100644
--- a/amazon/ipv6_merged.txt
+++ b/amazon/ipv6_merged.txt
@@ -615,7 +615,7 @@
 2406:da10:8000::/36
 2406:da11::/36
 2406:da12:8000::/36
-2406:da12::/36
+2406:da12::/35
 2406:da13::/36
 2406:da14:8000::/36
 2406:da14::/35