diff --git a/ipv4/ar.cidr b/ipv4/ar.cidr
index cdafce4c8..eed6d6fe2 100644
--- a/ipv4/ar.cidr
+++ b/ipv4/ar.cidr
@@ -977,7 +977,8 @@
 186.96.192.0/21
 186.100.0.0/16
 186.108.0.0/14
-186.121.144.0/20
+186.121.144.0/22
+186.121.152.0/21
 186.121.168.0/21
 186.121.176.0/20
 186.122.0.0/15
diff --git a/ipv4/ec.cidr b/ipv4/ec.cidr
index 2cc064cde..6c2c0591b 100644
--- a/ipv4/ec.cidr
+++ b/ipv4/ec.cidr
@@ -160,6 +160,7 @@
 186.66.0.0/16
 186.68.0.0/14
 186.101.0.0/16
+186.121.148.0/22
 186.121.160.0/23
 186.121.164.0/22
 186.178.0.0/16
diff --git a/ipv6/br.cidr b/ipv6/br.cidr
index 2712e6927..ea04198cb 100644
--- a/ipv6/br.cidr
+++ b/ipv6/br.cidr
@@ -3321,7 +3321,6 @@
 2804:34d0::/32
 2804:34d4::/32
 2804:34d8::/32
-2804:34dc::/32
 2804:34e0::/32
 2804:34e4::/32
 2804:34e8::/32