diff --git a/CHANGELOG b/CHANGELOG
index a89a42c2d..62621c8af 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -39,6 +39,9 @@ o Added an Apple Filing Protocol service probe that detects Netatalk
   servers. (Apple's AFP servers are coincidentally triggered by the
   SSLSessionReq probe.) [Patrik Karlsson]
 
+o Updated IANA assignment IP list for random IP (-iR) generation.  Now
+  even 001/8 has been allocated. [Kris]
+
 Nmap 5.20 [2010-01-20]
 
 o Dramatically improved the version detection database, integrating
diff --git a/nmap.cc b/nmap.cc
index 606c803ae..0ce8d6c87 100644
--- a/nmap.cc
+++ b/nmap.cc
@@ -348,14 +348,12 @@ static int ip_is_reserved(struct in_addr *ip)
   switch (i1)
     {
     case 0:         /* 000/8 is IANA reserved       */
-    case 1:         /* 001/8 is IANA reserved       */
     case 5:         /* 005/8 is IANA reserved       */
     case 6:         /* USA Army ISC                 */
     case 7:         /* used for BGP protocol        */
     case 10:        /* the infamous 10.0.0.0/8      */
     case 14:        /* 014/8 is IANA reserved       */
     case 23:        /* 023/8 is IANA reserved       */
-    case 27:        /* 027/8 is IANA reserved       */
     case 31:        /* 031/8 is IANA reserved       */
     case 36:        /* 036/8 is IANA reserved       */
     case 37:        /* 037/8 is IANA reserved       */