diff --git a/code/ddns-lambda.py b/code/ddns-lambda.py
index ed5f84b..091d639 100755
--- a/code/ddns-lambda.py
+++ b/code/ddns-lambda.py
@@ -73,7 +73,7 @@
 LOGGER = logging.getLogger()
 ACCOUNT = None
 REGION = None
-VERSION = '0.1.17'
+VERSION = '0.1.18'
 
 # Adjust the logging level [logging.INFO, logging.DEBUG, logging.WARNING, etc]
 LOGGER.setLevel(logging.DEBUG)
@@ -1470,6 +1470,38 @@ def get_dhcp_configurations(client, dhcp_options_id):
         LOGGER.info("unexpected error. %s\n", str(sys.exc_info()[0]) + lineno())
 
 
+def new_reverse_list(ip_list):
+    """
+    Reverses the order of the instance's IP address and helps construct the reverse lookup zone name.
+    :param str ip_list: IPv4 address to reverse
+    :return str: Returns a string in the PTR format
+    """
+    try:
+        ip = ipaddress.ip_address(ip_list)
+        reversed_list = ip.reverse_pointer
+        LOGGER.debug("returning: %s", str(reversed_list) + lineno())
+    except:
+        LOGGER.info("unexpected error. %s\n", str(sys.exc_info()[0]) + lineno())
+    return None
+
+    np = '.'.join(p.split('.')[1:])
+
+
+def new_reverse_domain(ip_list):
+    """
+    Reverses the order of the instance's IP address and helps construct the reverse lookup zone name.
+    :param str ip_list: IPv4 address to reverse
+    :return str: Returns a string in the PTR format of the subnet (/24 boundary)
+    """
+    try:
+        ip = ipaddress.ip_address(ip_list)
+        reversed_list = '.'.join(ip.reverse_pointer.split('.')[1:])
+        LOGGER.debug("returning: %s", str(reversed_list) + lineno())
+    except:
+        LOGGER.info("unexpected error. %s\n", str(sys.exc_info()[0]) + lineno())
+    return None
+
+
 def reverse_list(ip_list):
     """
     Reverses the order of the instance's IP address and
@@ -1730,17 +1762,3 @@ def parse_heritage(info):
         return kv_results
     except:
         return {}
-
-# heritage examples to incorporate
-# h=initialize_heritage('dynr53','0.0.9')
-# pprint(h)
-# add_heritage_item(h,'instance_id','i-123123123123')
-# add_heritage_item(h,'account_id','123123123123')
-# add_heritage_item(h,'region','west')
-# add_heritage_item_timestamp(h,'create_time')
-# txt=format_heritage(h)
-# print(txt)
-# nh=parse_heritage(txt)
-# print(dump_heritage(nh))
-# nh=parse_heritage('bob'+txt)
-# print(dump_heritage(nh))