diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..0bdf2962
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+/asnames.txt
+/rib.txt
+/rib.bz2
+/result
diff --git a/generate.sh b/generate.sh
new file mode 100755
index 00000000..de159018
--- /dev/null
+++ b/generate.sh
@@ -0,0 +1,39 @@
+#!/usr/bin/env zsh
+
+if [[ -f /etc/kern_loader.conf ]]; then
+	alias grep='ggrep'
+fi
+
+get_asn(){
+	CONF_FILE=$1
+	unset PATTERN
+	unset COUNTRY
+	source $CONF_FILE
+	grep -P "${COUNTRY}\$" asnames.txt | 
+	grep -Pi $PATTERN | 
+	awk '{print $1}' | 
+	while read ASN; do 
+		ASN=${ASN#AS}
+		if grep '\.' <(echo $ASN) > /dev/null; then 
+			ASN_HIGH=${ASN%.*}
+			ASN_LOW=${ASN#*.}
+			ASN=$((ASN_HIGH * 65536 + ASN_LOW))
+		fi
+		echo $ASN
+	done
+}
+
+prepare_data(){
+	wget http://bgp.potaroo.net/as1221/asnames.txt
+	wget http://archive.routeviews.org/dnszones/rib.bz2
+	bgpdump -m -O rib.txt rib.bz2
+}
+set -e
+[[ $DEBUG != true ]] && prepare_data
+mkdir -p result
+find operator -type f -name '*.conf' |
+while read file; do
+	operator=${file%.*}
+	operator=${operator##*/}
+	get_asn $file | xargs bgptools | uniq > result/$operator.txt
+done
diff --git a/operator/cernet.conf b/operator/cernet.conf
new file mode 100644
index 00000000..4d1dbb6c
--- /dev/null
+++ b/operator/cernet.conf
@@ -0,0 +1,2 @@
+PATTERN='cernet'
+COUNTRY='CN'
diff --git a/operator/chinnet.conf b/operator/chinnet.conf
new file mode 100644
index 00000000..f38934fd
--- /dev/null
+++ b/operator/chinnet.conf
@@ -0,0 +1,2 @@
+PATTERN='(china ?telecom|chinanet)'
+COUNTRY='CN'
diff --git a/operator/cmcc.conf b/operator/cmcc.conf
new file mode 100644
index 00000000..f37cdc31
--- /dev/null
+++ b/operator/cmcc.conf
@@ -0,0 +1,2 @@
+PATTERN='mobile'
+COUNTRY='CN'
diff --git a/operator/cstnet.conf b/operator/cstnet.conf
new file mode 100644
index 00000000..efda1363
--- /dev/null
+++ b/operator/cstnet.conf
@@ -0,0 +1,2 @@
+PATTERN='cstnet'
+COUNTRY='CN'
diff --git a/operator/tietong.conf b/operator/tietong.conf
new file mode 100644
index 00000000..722309a3
--- /dev/null
+++ b/operator/tietong.conf
@@ -0,0 +1,2 @@
+PATTERN='tietong'
+COUNTRY='CN'
diff --git a/operator/unicom.conf b/operator/unicom.conf
new file mode 100644
index 00000000..51ff0a99
--- /dev/null
+++ b/operator/unicom.conf
@@ -0,0 +1,2 @@
+PATTERN='unicom'
+COUNTRY='CN'