diff --git a/ip-ranges.json b/ip-ranges.json
index 37efd6f..4591735 100644
--- a/ip-ranges.json
+++ b/ip-ranges.json
@@ -1,6 +1,6 @@
 {
-  "syncToken": "1772584084",
-  "createDate": "2026-03-04-00-28-04",
+  "syncToken": "1772632086",
+  "createDate": "2026-03-04-13-48-06",
   "prefixes": [
     {
       "ip_prefix": "3.4.12.4/32",
@@ -33662,6 +33662,12 @@
       "service": "AMAZON",
       "network_border_group": "us-east-1"
     },
+    {
+      "ip_prefix": "100.55.128.0/23",
+      "region": "us-east-1",
+      "service": "AMAZON",
+      "network_border_group": "us-east-1"
+    },
     {
       "ip_prefix": "13.217.78.0/23",
       "region": "us-east-1",
diff --git a/subnets.json b/subnets.json
index d520c34..f731257 100644
--- a/subnets.json
+++ b/subnets.json
@@ -5613,6 +5613,7 @@
         "100.49.198.0/23",
         "100.52.164.0/23",
         "100.54.84.0/23",
+        "100.55.128.0/23",
         "13.217.78.0/23",
         "13.217.8.0/23",
         "13.217.80.0/24",