diff --git a/CHANGELOG b/CHANGELOG
index 8b7e5934b..237decf0f 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -85,6 +85,9 @@ o Disabled auto-generation of libpcre/pcre_chartables.c because that
   was useless for our purposes and could also cause some version
   control related problems. [David]
 
+o Updated IANA assignment IP list for random IP (-iR)
+  generation. [Kris]
+
 4.22SOC6
 
 o Included David's major massping migration project.  The same
diff --git a/nmap.cc b/nmap.cc
index 947a6af8a..f54b7b9fa 100644
--- a/nmap.cc
+++ b/nmap.cc
@@ -387,8 +387,8 @@ static int ip_is_reserved(struct in_addr *ip)
   if (i1 == 172 && i2 >= 16 && i2 <= 31)
     return 1;
 
-  /* 173-187/8 is IANA reserved */
-  if (i1 >= 173 && i1 <= 187)
+  /* 173-185/8 is IANA reserved */
+  if (i1 >= 173 && i1 <= 185)
     return 1;
 
   /* 192.168.0.0/16 is reserved for private nets by RFC1819 */