diff --git a/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json b/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json
index 8fc31b66b17..2d13f6d9881 100644
--- a/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json
+++ b/codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json
@@ -1310,6 +1310,12 @@
               "tags" : [ "dualstack" ]
             } ]
           },
+          "ap-northeast-3" : {
+            "variants" : [ {
+              "hostname" : "appmesh.ap-northeast-3.api.aws",
+              "tags" : [ "dualstack" ]
+            } ]
+          },
           "ap-south-1" : {
             "variants" : [ {
               "hostname" : "appmesh.ap-south-1.api.aws",
@@ -1328,6 +1334,12 @@
               "tags" : [ "dualstack" ]
             } ]
           },
+          "ap-southeast-3" : {
+            "variants" : [ {
+              "hostname" : "appmesh.ap-southeast-3.api.aws",
+              "tags" : [ "dualstack" ]
+            } ]
+          },
           "ca-central-1" : {
             "variants" : [ {
               "hostname" : "appmesh.ca-central-1.api.aws",
@@ -6079,6 +6091,19 @@
           "us-east-1" : { }
         }
       },
+      "geo" : {
+        "endpoints" : {
+          "ap-northeast-1" : { },
+          "ap-southeast-1" : { },
+          "ap-southeast-2" : { },
+          "eu-central-1" : { },
+          "eu-north-1" : { },
+          "eu-west-1" : { },
+          "us-east-1" : { },
+          "us-east-2" : { },
+          "us-west-2" : { }
+        }
+      },
       "glacier" : {
         "defaults" : {
           "protocols" : [ "http", "https" ]