diff --git a/inventory_provider/config.py b/inventory_provider/config.py
index 4636d131f1a47e105dc980450ef067436fd3b57c..23384f920165dacf2b7d83fd705b03fd2c69ba1b 100644
--- a/inventory_provider/config.py
+++ b/inventory_provider/config.py
@@ -183,6 +183,13 @@ CONFIG_SCHEMA = {
             'type': 'array',
             'items': {'$ref': '#/definitions/gws-direct-nren-isp'}
         },
+        'nren-asn-map': {
+            'type': 'object',
+            'patternProperties': {
+                r'^\d+$': {'type': 'string'}
+            },
+            'additionalProperties': False
+        }
     },
 
     'type': 'object',
@@ -207,7 +214,8 @@ CONFIG_SCHEMA = {
             'type': 'array',
             'items': {'$ref': '#/definitions/interface-address'}
         },
-        'gws-direct': {'$ref': '#/definitions/gws-direct'}
+        'gws-direct': {'$ref': '#/definitions/gws-direct'},
+        'nren-asn-map': {'$ref': '#/definitions/nren-asn-map'}
 
     },
     'oneOf': [
@@ -219,7 +227,8 @@ CONFIG_SCHEMA = {
                 'redis-databases',
                 'ims',
                 'managed-routers',
-                'gws-direct']
+                'gws-direct',
+                'nren-asn-map']
         },
         {
             'required': [
@@ -229,7 +238,8 @@ CONFIG_SCHEMA = {
                 'redis-databases',
                 'ims',
                 'managed-routers',
-                'gws-direct']
+                'gws-direct',
+                'nren-asn-map']
         }
     ],
     'additionalProperties': False
diff --git a/test/conftest.py b/test/conftest.py
index c71ce4daff1c3b6c1fd569576e0b9de89b4bd628..2659732b3b9b3061fd7fbd5bc4c0f96d790dd73d 100644
--- a/test/conftest.py
+++ b/test/conftest.py
@@ -65,7 +65,12 @@ def data_config_filename():
                     "router": "another.bogus.host.name"
                 }
             ],
-            'gws-direct': {}
+            'gws-direct': {},
+            'nren-asn-map': {
+                "100": "BogusNREN",
+                "200": "FoobarNREN",
+                "300": "AlsoNET"
+            }
         }
 
         with open(os.path.join(TEST_DATA_DIRNAME, 'gws-direct.json')) as gws: