diff --git a/titles/wacca/base.py b/titles/wacca/base.py
index 25ec33b..64b4248 100644
--- a/titles/wacca/base.py
+++ b/titles/wacca/base.py
@@ -91,10 +91,27 @@ class WaccaBase():
     def handle_housing_start_request(self, data: Dict) -> Dict:
         req = HousingStartRequestV1(data)
 
-        if req.appVersion.country != "JPN" and req.appVersion.country in [region.name for region in WaccaConstants.Region]:
+        machine = self.data.arcade.get_machine(req.chipId)
+        if machine is not None:
+            arcade = self.data.arcade.get_arcade(machine["arcade"])
+            
+            allnet_region_id = arcade["region_id"]
+
+        if req.appVersion.country == "JPN":
+            if allnet_region_id is not None:
+                region = WaccaConstants.allnet_region_id_to_wacca_region(allnet_region_id)
+                
+                if region is None:
+                    region_id = self.region_id
+            
+            else:
+                region_id = self.region_id
+        
+        elif req.appVersion.country in WaccaConstants.VALID_COUNTRIES:
             region_id = WaccaConstants.Region[req.appVersion.country]
+        
         else:
-            region_id = self.region_id
+            region_id = 0
 
         resp = HousingStartResponseV1(region_id)
         return resp.make()
diff --git a/titles/wacca/const.py b/titles/wacca/const.py
index a984682..f072143 100644
--- a/titles/wacca/const.py
+++ b/titles/wacca/const.py
@@ -1,4 +1,7 @@
 from enum import Enum
+from typing import Optional
+
+from core.const import AllnetJapanRegionId
 
 class WaccaConstants():
     CONFIG_NAME = "wacca.yaml"
@@ -165,4 +168,22 @@ class WaccaConstants():
 
     @classmethod
     def game_ver_to_string(cls, ver: int):
-        return cls.VERSION_NAMES[ver]
\ No newline at end of file
+        return cls.VERSION_NAMES[ver]
+
+    @classmethod
+    def allnet_region_id_to_wacca_region(cls, region: int) -> Optional[Region]:
+        try:
+            return [
+                cls.Region.NONE, cls.Region.AICHI, cls.Region.AOMORI, cls.Region.AKITA, cls.Region.ISHIKAWA,
+                cls.Region.IBARAKI, cls.Region.IWATE, cls.Region.EHIME, cls.Region.OITA, cls.Region.OSAKA,
+                cls.Region.OKAYAMA, cls.Region.OKINAWA, cls.Region.KAGAWA, cls.Region.KAGOSHIMA, cls.Region.KANAGAWA,
+                cls.Region.GIFU, cls.Region.KYOTO, cls.Region.KUMAMOTO, cls.Region.GUNMA, cls.Region.KOCHI,
+                cls.Region.SAITAMA, cls.Region.SAGA, cls.Region.SHIGA, cls.Region.SHIZUOKA, cls.Region.SHIMANE,
+                cls.Region.CHIBA, cls.Region.TOKYO, cls.Region.TOKUSHIMA, cls.Region.TOCHIGI, cls.Region.TOTTORI,
+                cls.Region.TOYAMA, cls.Region.NAGASAKI, cls.Region.NAGANO, cls.Region.NARA, cls.Region.NIIGATA,
+                cls.Region.HYOGO, cls.Region.HIROSHIMA, cls.Region.FUKUI, cls.Region.FUKUOKA, cls.Region.FUKUSHIMA,
+                cls.Region.HOKKAIDO, cls.Region.MIE, cls.Region.MIYAGI, cls.Region.MIYAZAKI, cls.Region.YAMAGATA,
+                cls.Region.YAMAGUCHI, cls.Region.YAMANASHI, cls.Region.WAKAYAMA,
+            ][region]
+        except: return None
+