diff --git a/app/models.py b/app/models.py
index a3a802a..6878938 100644
--- a/app/models.py
+++ b/app/models.py
@@ -644,17 +644,21 @@ class Domain(db.Model):
         return {'status': 'ok', 'msg': 'Reverse lookup domain already exists'}
 
     def get_reverse_domain_name(self, reverse_host_address):
+        c = 1
         if re.search('ip6.arpa', reverse_host_address):
-            for i in range(31,3,-1):
+            for i in range(1,32,1):
                 address = re.search('((([a-f0-9]\.){'+ str(i) +'})(?P<ipname>.+6.arpa)\.?)', reverse_host_address)
                 if None != self.get_id_by_name(address.group('ipname')):
+                    c = i
                     break
+            return re.search('((([a-f0-9]\.){'+ str(c) +'})(?P<ipname>.+6.arpa)\.?)', reverse_host_address).group('ipname')
         else:
-            for i in range(3,0,-1):
+            for i in range(1,4,1):
                 address = re.search('((([0-9]+\.){'+ str(i) +'})(?P<ipname>.+r.arpa)\.?)', reverse_host_address)
                 if None != self.get_id_by_name(address.group('ipname')):
+                    c = i
                     break
-        return address.group('ipname')
+            return re.search('((([0-9]+\.){'+ str(c) +'})(?P<ipname>.+r.arpa)\.?)', reverse_host_address).group('ipname')
 
     def delete(self, domain_name):
         """