diff --git a/ipv4/id.cidr b/ipv4/id.cidr
index 25d321008..80c255b42 100644
--- a/ipv4/id.cidr
+++ b/ipv4/id.cidr
@@ -3606,6 +3606,7 @@
 151.158.4.0/23
 151.158.10.0/23
 151.158.36.0/23
+151.158.42.0/23
 152.118.0.0/16
 153.124.160.0/21
 157.10.0.0/22
diff --git a/ipv6/id.cidr b/ipv6/id.cidr
index ab90010b3..9aac455ff 100644
--- a/ipv6/id.cidr
+++ b/ipv6/id.cidr
@@ -1591,6 +1591,7 @@
 2001:df6:9700::/48
 2001:df6:9740::/48
 2001:df6:97c0::/48
+2001:df6:9840::/48
 2001:df6:9d00::/48
 2001:df6:9f00::/48
 2001:df6:a380::/48