diff --git a/app/clients/sms/aws_sns.py b/app/clients/sms/aws_sns.py
index a841f1c2a..171080330 100644
--- a/app/clients/sms/aws_sns.py
+++ b/app/clients/sms/aws_sns.py
@@ -50,6 +50,7 @@ class AwsSnsClient(SmsClient):
         matched = False
         if "+" not in to:
             to = f"+{to}"
+
         for match in phonenumbers.PhoneNumberMatcher(to, None):
             matched = True
             to = phonenumbers.format_number(
diff --git a/tests/app/clients/test_aws_sns.py b/tests/app/clients/test_aws_sns.py
index 1ebfa3e58..09c623f18 100644
--- a/tests/app/clients/test_aws_sns.py
+++ b/tests/app/clients/test_aws_sns.py
@@ -5,7 +5,7 @@ from app import aws_sns_client
 
 def test_send_sms_successful_returns_aws_sns_response(notify_api, mocker):
     boto_mock = mocker.patch.object(aws_sns_client, "_client", create=True)
-    to = "6135555555"
+    to = "16135555555"
     content = reference = "foo"
     with notify_api.app_context():
         aws_sns_client.send_sms(to, content, reference)