diff --git a/README.adoc b/README.adoc
index ce91b63..90301d0 100644
--- a/README.adoc
+++ b/README.adoc
@@ -26,6 +26,7 @@ image:https://raw.githubusercontent.com/NeoChen1024/NeoNetwork/master/nodes.png[
 
 == Files and Directories:
 	ospf-area.txt:	OSPF Area Number
+	bgp-asn.txt:	BGP AS Number
 	routes.txt:	network address allocation
 	named.conf:	Bind9 DNS configuration example
 	nodes.dot:	connection graph
diff --git a/bgp-asn.txt b/bgp-asn.txt
new file mode 100644
index 0000000..9a7a369
--- /dev/null
+++ b/bgp-asn.txt
@@ -0,0 +1,4 @@
+# BGP AS Number: (Private AS)
+
+AS Number	Name
+4201048576	Neo_Chen