diff --git a/ipv4/us.cidr b/ipv4/us.cidr
index 2c4a4efcf..f05c099f2 100644
--- a/ipv4/us.cidr
+++ b/ipv4/us.cidr
@@ -950,7 +950,7 @@
 23.158.208.0/24
 23.158.216.0/24
 23.158.224.0/24
-23.158.232.0/24
+23.158.232.0/23
 23.158.248.0/24
 23.159.0.0/24
 23.159.8.0/24
@@ -8388,9 +8388,7 @@
 144.86.128.0/20
 144.86.148.0/22
 144.86.152.0/21
-144.86.160.0/24
-144.86.162.0/23
-144.86.164.0/22
+144.86.160.0/21
 144.86.168.0/22
 144.86.172.0/23
 144.86.174.0/24
@@ -22022,12 +22020,7 @@
 206.197.216.0/21
 206.197.224.0/19
 206.198.0.0/17
-206.198.128.0/19
-206.198.160.0/20
-206.198.176.0/22
-206.198.181.0/24
-206.198.182.0/23
-206.198.184.0/21
+206.198.128.0/18
 206.198.196.0/22
 206.198.200.0/21
 206.198.208.0/20