diff --git a/all/ipv6.txt b/all/ipv6.txt
index 6e91d4bd..e43c099c 100644
--- a/all/ipv6.txt
+++ b/all/ipv6.txt
@@ -12054,6 +12054,5 @@
 2800:3f0:4000::/36
 2800:3f0::/32
 2803:6080::/29
-2803:6083:1644:400::/54
 2804:800:0:7000::/56
 2804:800:ff00::/48
diff --git a/facebook/ipv6.txt b/facebook/ipv6.txt
index 6bdf2f78..e737cce5 100644
--- a/facebook/ipv6.txt
+++ b/facebook/ipv6.txt
@@ -525,4 +525,3 @@
 2620:10d:c09a::/48
 2620:10d:c09b::/48
 2803:6080::/29
-2803:6083:1644:400::/54