diff --git a/ipv6/tz.cidr b/ipv6/tz.cidr
index 48cf7a8ca..96afc2b7a 100644
--- a/ipv6/tz.cidr
+++ b/ipv6/tz.cidr
@@ -21,6 +21,7 @@
 2c0f:700::/32
 2c0f:b80::/32
 2c0f:cc0::/32
+2c0f:17c0::/32
 2c0f:2580::/32
 2c0f:5040::/32
 2c0f:5500::/32
diff --git a/ipv6/zz.cidr b/ipv6/zz.cidr
index a3c6e74c9..847c19bde 100644
--- a/ipv6/zz.cidr
+++ b/ipv6/zz.cidr
@@ -2317,7 +2317,12 @@
 2c0f:1788::/29
 2c0f:1790::/28
 2c0f:17a0::/27
-2c0f:17c0::/26
+2c0f:17c1::/32
+2c0f:17c2::/31
+2c0f:17c4::/30
+2c0f:17c8::/29
+2c0f:17d0::/28
+2c0f:17e0::/27
 2c0f:1800::/26
 2c0f:1841::/32
 2c0f:1842::/31