diff --git a/vcf_cleaner.py b/vcf_cleaner.py
index f3bc3a2..792c13b 100644
--- a/vcf_cleaner.py
+++ b/vcf_cleaner.py
@@ -2,6 +2,7 @@ import os
 import sys
 import base64
 import pickle
+import phonenumbers
 from pythonvCard4.vcard import Contact
 
 input_file = open(sys.argv[1], 'r').readlines()
@@ -32,6 +33,16 @@ for line in input_file:
             contact.photo_path = "pictures/" + contact.fn + "/profile.jpg"
         contact.custom = {}
 
+        for number in contact.tel:
+            try:
+                number = number["value"]
+                number = number.replace("-", "")
+                number = phonenumbers.parse(number, region="FR")
+                number = phonenumbers.format_number(number, phonenumbers.PhoneNumberFormat.INTERNATIONAL)
+                contact.tel = [{"value": number, "type": []}]
+            except phonenumbers.phonenumberutil.NumberParseException:
+                continue
+
         cards.append(contact)
         current_card = ""
         continue