diff --git a/app/main/views/dashboard.py b/app/main/views/dashboard.py
index a398ef81c..90de7ae15 100644
--- a/app/main/views/dashboard.py
+++ b/app/main/views/dashboard.py
@@ -15,6 +15,7 @@ from flask import (
     url_for,
 )
 from flask_login import current_user
+from notifications_utils.recipients import format_phone_number_human_readable
 from werkzeug.utils import redirect
 
 from app import (
@@ -202,7 +203,7 @@ def inbox_download(service_id):
                 'Message',
                 'Received',
             ]] + [[
-                message['user_number'],
+                format_phone_number_human_readable(message['user_number']),
                 message['content'].lstrip(('=+-@')),
                 format_datetime_numeric(message['created_at']),
             ] for message in service_api_client.get_inbound_sms(service_id)['data']]
diff --git a/tests/__init__.py b/tests/__init__.py
index 58e67ec82..9d59117d0 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -364,6 +364,30 @@ def org_invite_json(id_, invited_by, org_id, email_address, created_at, status):
     }
 
 
+def inbound_sms_json():
+    return {
+        'has_next': True,
+        'data': [{
+            'user_number': phone_number,
+            'notify_number': '07900000002',
+            'content': f'message-{index + 1}',
+            'created_at': (
+                datetime.utcnow() - timedelta(minutes=60 * hours_ago, seconds=index)
+            ).isoformat(),
+            'id': sample_uuid(),
+        } for index, hours_ago, phone_number in (
+            (0, 1, '447900900000'),
+            (1, 1, '07900900000'),
+            (2, 1, '07900900000'),
+            (3, 3, '07900900002'),
+            (4, 5, '33(0)1 12345678'),  # France
+            (5, 7, '1-202-555-0104'),  # USA in one format
+            (6, 9, '+12025550104'),  # USA in another format
+            (7, 9, '+68212345'),  # Cook Islands
+        )]
+    }
+
+
 TEST_USER_EMAIL = 'test@user.gov.uk'
 
 
diff --git a/tests/app/main/views/test_dashboard.py b/tests/app/main/views/test_dashboard.py
index 60f8d2fc1..0c0a7675f 100644
--- a/tests/app/main/views/test_dashboard.py
+++ b/tests/app/main/views/test_dashboard.py
@@ -268,10 +268,10 @@ def test_inbound_messages_shows_count_of_messages_when_there_are_no_messages(
     '07900 900000 message-2 1 hour ago',
     '07900 900000 message-3 1 hour ago',
     '07900 900002 message-4 3 hours ago',
-    '07900 900004 message-5 5 hours ago',
-    '07900 900006 message-6 7 hours ago',
-    '07900 900008 message-7 9 hours ago',
-    '07900 900008 message-8 9 hours ago',
+    '+33 1 12 34 56 78 message-5 5 hours ago',
+    '+1 202-555-0104 message-6 7 hours ago',
+    '+1 202-555-0104 message-7 9 hours ago',
+    '+682 12345 message-8 9 hours ago',
 ]))
 def test_inbox_showing_inbound_messages(
     client_request,
@@ -434,14 +434,14 @@ def test_download_inbox(
     )
     assert response.get_data(as_text=True) == (
         'Phone number,Message,Received\r\n'
-        '07900900000,message-1,2016-07-01 13:00\r\n'
-        '07900900000,message-2,2016-07-01 12:59\r\n'
-        '07900900000,message-3,2016-07-01 12:59\r\n'
-        '07900900002,message-4,2016-07-01 10:59\r\n'
-        '07900900004,message-5,2016-07-01 08:59\r\n'
-        '07900900006,message-6,2016-07-01 06:59\r\n'
-        '07900900008,message-7,2016-07-01 04:59\r\n'
-        '07900900008,message-8,2016-07-01 04:59\r\n'
+        '07900 900000,message-1,2016-07-01 13:00\r\n'
+        '07900 900000,message-2,2016-07-01 12:59\r\n'
+        '07900 900000,message-3,2016-07-01 12:59\r\n'
+        '07900 900002,message-4,2016-07-01 10:59\r\n'
+        '+33 1 12 34 56 78,message-5,2016-07-01 08:59\r\n'
+        '+1 202-555-0104,message-6,2016-07-01 06:59\r\n'
+        '+1 202-555-0104,message-7,2016-07-01 04:59\r\n'
+        '+682 12345,message-8,2016-07-01 04:59\r\n'
     )
 
 
diff --git a/tests/conftest.py b/tests/conftest.py
index 5ae94b09c..ddfd1723e 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -22,6 +22,7 @@ from . import (
     broadcast_message_json,
     contact_list_json,
     generate_uuid,
+    inbound_sms_json,
     invite_json,
     job_json,
     notification_json,
@@ -2021,16 +2022,7 @@ def mock_get_inbound_sms(mocker):
         user_number=None,
         page=1
     ):
-        return {
-            'has_next': True,
-            'data': [{
-                'user_number': '0790090000' + str(i),
-                'notify_number': '07900000002',
-                'content': 'message-{}'.format(index + 1),
-                'created_at': (datetime.utcnow() - timedelta(minutes=60 * (i + 1), seconds=index)).isoformat(),
-                'id': sample_uuid(),
-            } for index, i in enumerate([0, 0, 0, 2, 4, 6, 8, 8])]
-        }
+        return inbound_sms_json()
 
     return mocker.patch(
         'app.service_api_client.get_inbound_sms',
@@ -2059,16 +2051,7 @@ def mock_get_most_recent_inbound_sms(mocker):
         user_number=None,
         page=1
     ):
-        return {
-            'has_next': True,
-            'data': [{
-                'user_number': '0790090000' + str(i),
-                'notify_number': '07900000002',
-                'content': 'message-{}'.format(index + 1),
-                'created_at': (datetime.utcnow() - timedelta(minutes=60 * (i + 1), seconds=index)).isoformat(),
-                'id': sample_uuid(),
-            } for index, i in enumerate([0, 0, 0, 2, 4, 6, 8, 8])]
-        }
+        return inbound_sms_json()
 
     return mocker.patch(
         'app.service_api_client.get_most_recent_inbound_sms',