diff --git a/ppf.py b/ppf.py
index 8597bfe..0774aac 100755
--- a/ppf.py
+++ b/ppf.py
@@ -126,14 +126,18 @@ def proxyfind(sqlite = None):
 
 	sqlite.commit()
 
-def is_reserved_ipv4(ip):
+def should_i_append_this_item(ip):
 	octets = ip.split('.')
 	A = int(octets[0])
 	B = int(octets[1])
+	if (octets[0] < 1 or octets[0] > 254) or \
+	(octets[1] < 0 or octets[1] > 255) or \
+	(octets[2] < 0 or octets[2] > 255) or \
+	(octets[3] < 1 or octets[3] > 254): return False
 	if A == 10 or A == 127 or A == 0 or \
 	(A == 192 and B == 168) or \
-	(A == 172 and B >= 16 and B <= 31): return True
-	return False
+	(A == 172 and B >= 16 and B <= 31): return False
+	return True
 
 def proxyleech(sqlite, rows):
 	for row in rows:
@@ -149,7 +153,7 @@ def proxyleech(sqlite, rows):
 
 		uniques = []
 		for p in uniques_dict.keys():
-			if not is_reserved_ipv4(p): uniques.append(p)
+			if should_i_append_this_item(p): uniques.append(p)
 
 		hash = hashlib.md5(''.join(uniques)).hexdigest()