diff --git a/backend/src/controllers/ContactController.ts b/backend/src/controllers/ContactController.ts
index 1c05596..c5099b0 100644
--- a/backend/src/controllers/ContactController.ts
+++ b/backend/src/controllers/ContactController.ts
@@ -88,6 +88,7 @@ export const store = async (req: Request, res: Response): Promise<Response> => {
     number: Yup.string()
       .required()
       .matches(/^\d+$/, "Invalid number format. Only numbers is allowed.")
+      .matches(/^55\d+$/, "The number must start with 55.")
   });
 
   try {
@@ -152,10 +153,9 @@ export const update = async (
 
   const schema = Yup.object().shape({
     name: Yup.string(),
-    number: Yup.string().matches(
-      /^\d+$/,
-      "Invalid number format. Only numbers is allowed."
-    )
+    number: Yup.string()
+    .matches(/^\d+$/,"Invalid number format. Only numbers is allowed.")
+    .matches(/^55\d+$/, "The number must start with 55.")
   });
 
   try {
diff --git a/backend/src/services/MessageServices/CreateMessageService.ts b/backend/src/services/MessageServices/CreateMessageService.ts
index 7a09947..11a009b 100644
--- a/backend/src/services/MessageServices/CreateMessageService.ts
+++ b/backend/src/services/MessageServices/CreateMessageService.ts
@@ -20,7 +20,7 @@ interface Request {
 
 const CreateMessageService = async ({ messageData }: Request): Promise<Message> => {
 
-  console.log('UPSERT MESSAGE messageData: ', messageData)
+  // console.log('UPSERT MESSAGE messageData: ', messageData)
 
   try {