diff --git a/REQUIREMENTS b/REQUIREMENTS
index 724c659..4799b39 100644
--- a/REQUIREMENTS
+++ b/REQUIREMENTS
@@ -7,3 +7,4 @@ PyPDNS
 pypssl
 redis
 pyeupi
+ipasn-redis
diff --git a/modules/expansion/ipasn.py b/modules/expansion/ipasn.py
new file mode 100755
index 0000000..0a0dc2b
--- /dev/null
+++ b/modules/expansion/ipasn.py
@@ -0,0 +1,49 @@
+# -*- coding: utf-8 -*-
+
+import json
+from ipasn_redis import IPASN
+
+misperrors = {'error': 'Error'}
+mispattributes = {'input': ['ip-src', 'ip-dst'], 'output': ['freetext']}
+moduleinfo = {'version': '0.1', 'author': 'Raphaël Vinot',
+              'description': 'Query an IP ASN history service (https://github.com/CIRCL/IP-ASN-history.git)',
+              'module-type': ['expansion', 'hover']}
+
+moduleconfig = ['host', 'port', 'db']
+
+
+def handler(q=False):
+    if q is False:
+        return False
+    request = json.loads(q)
+    if request.get('ip-src'):
+        toquery = request['ip-src']
+    elif request.get('ip-dst'):
+        toquery = request['ip-dst']
+    else:
+        misperrors['error'] = "Unsupported attributes type"
+        return misperrors
+
+    if not request.get('config') and not (request['config'].get('host') and
+                                          request['config'].get('port') and
+                                          request['config'].get('db')):
+        misperrors['error'] = 'IP ASN history configuration is missing'
+        return misperrors
+
+    ipasn = IPASN(host=request['config'].get('host'),
+                  port=request['config'].get('port'), db=request['config'].get('db'))
+
+    values = ' \n '.join(list(ipasn.aggregate_history(toquery)))
+    if not values:
+        misperrors['error'] = 'Unable to find the history of this IP'
+        return misperrors
+    return {'results': [{'types': mispattributes['output'], 'values': values}]}
+
+
+def introspection():
+    return mispattributes
+
+
+def version():
+    moduleinfo['config'] = moduleconfig
+    return moduleinfo