diff --git a/migrations/versions/0133_set_services_sms_prefix.py b/migrations/versions/0133_set_services_sms_prefix.py
new file mode 100644
index 000000000..9e1378fa0
--- /dev/null
+++ b/migrations/versions/0133_set_services_sms_prefix.py
@@ -0,0 +1,42 @@
+import os
+from app import config
+"""
+
+Revision ID: 0133_set_services_sms_prefix
+Revises: 0132_add_sms_prefix_setting
+Create Date: 2017-11-03 15:55:35.657488
+
+"""
+from alembic import op
+import sqlalchemy as sa
+from sqlalchemy.dialects import postgresql
+
+revision = '0133_set_services_sms_prefix'
+down_revision = '0132_add_sms_prefix_setting'
+
+
+config = config.configs[os.environ['NOTIFY_ENVIRONMENT']]
+default_sms_sender = config.FROM_NUMBER
+
+
+def upgrade():
+    op.execute("""
+        update services set prefix_sms = True
+        where id in (
+            select service_id from service_sms_senders
+            where is_default = True and sms_sender = '{}'
+        )
+    """.format(default_sms_sender))
+    op.execute("""
+        update services set prefix_sms = False
+        where id in (
+            select service_id from service_sms_senders
+            where is_default = True and sms_sender != '{}'
+        )
+    """.format(default_sms_sender))
+
+
+def downgrade():
+    op.execute("""
+        UPDATE services set prefix_sms = null
+    """)