diff --git a/all/ipv4.txt b/all/ipv4.txt
index d46f2c31..4fe42b05 100644
--- a/all/ipv4.txt
+++ b/all/ipv4.txt
@@ -41527,6 +41527,7 @@
 173.255.253.0/24
 173.255.254.0/24
 173.255.255.0/24
+173.83.209.0/24
 174.129.0.0/16
 174.138.0.0/20
 174.138.100.0/22
diff --git a/all/ipv4_merged.txt b/all/ipv4_merged.txt
index 36fe3694..ae8ff4e8 100644
--- a/all/ipv4_merged.txt
+++ b/all/ipv4_merged.txt
@@ -3629,6 +3629,7 @@
 173.255.236.0/23
 173.255.238.0/24
 173.255.240.0/20
+173.83.209.0/24
 174.129.0.0/16
 174.138.0.0/17
 175.41.128.0/17
diff --git a/amazon/ipv4.txt b/amazon/ipv4.txt
index f56f7006..649e64c1 100644
--- a/amazon/ipv4.txt
+++ b/amazon/ipv4.txt
@@ -5766,6 +5766,7 @@
 172.96.110.0/24
 172.96.97.0/24
 172.96.98.0/24
+173.83.209.0/24
 174.129.0.0/16
 175.41.128.0/18
 175.41.192.0/18
diff --git a/amazon/ipv4_merged.txt b/amazon/ipv4_merged.txt
index f8b09657..1bc0575a 100644
--- a/amazon/ipv4_merged.txt
+++ b/amazon/ipv4_merged.txt
@@ -1314,6 +1314,7 @@
 172.96.110.0/24
 172.96.97.0/24
 172.96.98.0/24
+173.83.209.0/24
 174.129.0.0/16
 175.41.128.0/17
 176.32.112.0/21