diff --git a/STABLE/rfc1918 b/STABLE/rfc1918
index 8aaf965a6..d3ff1698f 100644
--- a/STABLE/rfc1918
+++ b/STABLE/rfc1918
@@ -47,7 +47,9 @@
 50.0.0.0/8		logdrop		# JTC - Returned to IANA Mar 98
 58.0.0.0/7		logdrop		# Reserved
 71.0.0.0/8		logdrop		# Reserved
-72.0.0.0/5		logdrop		# Reserved
+73.0.0.0/8		logdrop		# Reserved
+74.0.0.0/7		logdrop		# Reserved
+76.0.0.0/6		logdrop		# Reserved
 89.0.0.0/8		logdrop		# Reserved
 90.0.0.0/7		logdrop		# Reserved
 92.0.0.0/6		logdrop		# Reserved