diff --git a/crabpy_pyramid/renderers/crab.py b/crabpy_pyramid/renderers/crab.py
index 3f75fb6..5fd8860 100644
--- a/crabpy_pyramid/renderers/crab.py
+++ b/crabpy_pyramid/renderers/crab.py
@@ -4,10 +4,10 @@
 
 .. versionadded:: 0.1.0
 """
-from crabpy.gateway import crab
-import pycountry
 import gettext
 
+import pycountry
+from crabpy.gateway import crab
 from pyramid.renderers import JSON
 
 json_list_renderer = JSON()
@@ -514,6 +514,16 @@ def item_land_adapter(obj, request):
     }
 
 
+def item_postkanton_adapter(obj, request):
+    """
+    Adapter for rendering an item of
+    :class: `pycountry.db.Data` to json.
+    """
+    return {
+        'postcode': obj.id,
+    }
+
+
 json_item_renderer.add_adapter(crab.Gewest, item_gewest_adapter)
 json_item_renderer.add_adapter(crab.Provincie, item_provincie_adapter)
 json_item_renderer.add_adapter(crab.Gemeente, item_gemeente_adapter)
@@ -526,3 +536,4 @@ def item_land_adapter(obj, request):
 json_item_renderer.add_adapter(crab.Subadres, item_subadres_adapter)
 json_item_renderer.add_adapter(crab.Adrespositie, item_adrespositie_adapter)
 json_item_renderer.add_adapter(pycountry.db.Data, item_land_adapter)
+json_item_renderer.add_adapter(crab.Postkanton, item_postkanton_adapter)
diff --git a/crabpy_pyramid/routes/crab.py b/crabpy_pyramid/routes/crab.py
index ca793f9..22e2e60 100644
--- a/crabpy_pyramid/routes/crab.py
+++ b/crabpy_pyramid/routes/crab.py
@@ -97,3 +97,6 @@ def includeme(config):
     crabpy_pyramid.add_route(config,
                              'get_land_by_id',
                              '/crab/landen/{land_id}')
+    crabpy_pyramid.add_route(config,
+                             'get_postkanton_by_huisnummer',
+                             '/crab/huisnummers/{huisnummer_id}/postkanton')
diff --git a/crabpy_pyramid/tests/test_functional.py b/crabpy_pyramid/tests/test_functional.py
index 8a745bb..cfeb62e 100644
--- a/crabpy_pyramid/tests/test_functional.py
+++ b/crabpy_pyramid/tests/test_functional.py
@@ -348,6 +348,14 @@ def test_get_land_by_unexisting_id(self):
         res = self.testapp.get('/crab/landen/MORDOR', status=404)
         self.assertEqual('404 Not Found', res.status)
 
+    def test_get_postkanton_by_huisnummer(self):
+        res = self.testapp.get('/crab/huisnummers/5/postkanton')
+        self.assertEqual('200 OK', res.status)
+
+    def test_get_postkanton_by_huisnummer_unexisting(self):
+        res = self.testapp.get('/crab/huisnummers/99999999/postkanton', status=404)
+        self.assertEqual('404 Not Found', res.status)
+
 @unittest.skipUnless(
     run_crab_integration_tests(),
     'No CRAB Integration tests required'
diff --git a/crabpy_pyramid/views/crab.py b/crabpy_pyramid/views/crab.py
index 0117903..fc9130c 100644
--- a/crabpy_pyramid/views/crab.py
+++ b/crabpy_pyramid/views/crab.py
@@ -4,15 +4,15 @@
 
 .. versionadded:: 0.1.0
 """
-from pyramid.view import view_config
-from crabpy_pyramid.utils import range_return, set_http_caching
-import pycountry
+import logging
 
+import pycountry
 from crabpy.gateway.exception import GatewayResourceNotFoundException
-
 from pyramid.httpexceptions import HTTPNotFound
+from pyramid.view import view_config
 
-import logging
+from crabpy_pyramid.utils import range_return
+from crabpy_pyramid.utils import set_http_caching
 
 log = logging.getLogger(__name__)
 
@@ -410,3 +410,17 @@ def get_land_by_id(request):
     if land is None:
         return HTTPNotFound()
     return land
+
+
+@view_config(
+    route_name='get_postkanton_by_huisnummer',
+    renderer='crab_itemjson', accept='application/json'
+)
+def get_postkanton_by_huisnummer(request):
+    request = set_http_caching(request, 'crab', 'short')
+    Gateway = request.crab_gateway()
+    huisnummer_id = request.matchdict.get('huisnummer_id')
+    try:
+        return Gateway.get_postkanton_by_huisnummer(huisnummer_id)
+    except GatewayResourceNotFoundException:
+        return HTTPNotFound()