diff --git a/lib/routes/api/accounts.js b/lib/routes/api/accounts.js
index 1345232..bba6dd3 100644
--- a/lib/routes/api/accounts.js
+++ b/lib/routes/api/accounts.js
@@ -519,7 +519,7 @@ router.delete('/:sid', async(req, res) => {
     await validateDelete(req, sid);
 
     const [account] = await promisePool.query('SELECT * FROM accounts WHERE account_sid = ?', sid);
-    const {sip_realm, stripe_customer_id} = account[0];
+    const {sip_realm, stripe_customer_id, registration_hook_sid} = account[0];
     /* remove dns records */
     if (process.env.NODE_ENV !== 'test' || process.env.DME_API_KEY) {
 
@@ -560,6 +560,15 @@ account_subscriptions WHERE account_sid = ?)
     await promisePool.execute('DELETE from applications where account_sid = ?', [sid]);
     await promisePool.execute('DELETE from accounts where account_sid = ?', [sid]);
 
+    if (registration_hook_sid) {
+      /* remove registration hook if only used by this account */
+      const sql = 'SELECT COUNT(*) as count FROM accounts WHERE registration_hook_sid = ?';
+      const [r] = await promisePool.query(sql, registration_hook_sid);
+      if (r[0]?.count === 0) {
+        await promisePool.execute('DELETE from webhooks where webhook_sid = ?', [registration_hook_sid]);
+      }
+    }
+
     if (stripe_customer_id) {
       const response = await deleteCustomer(logger, stripe_customer_id);
       logger.info({response}, `deleted stripe customer_id ${stripe_customer_id} for account_si ${sid}`);
diff --git a/lib/routes/api/applications.js b/lib/routes/api/applications.js
index 99a0b06..6203fd1 100644
--- a/lib/routes/api/applications.js
+++ b/lib/routes/api/applications.js
@@ -3,12 +3,12 @@ const {DbErrorBadRequest, DbErrorUnprocessableRequest} = require('../../utils/er
 const Application = require('../../models/application');
 const Account = require('../../models/account');
 const Webhook = require('../../models/webhook');
+const {promisePool} = require('../../db');
 const decorate = require('./decorate');
 const sysError = require('../error');
 const preconditions = {
   'add': validateAdd,
-  'update': validateUpdate,
-  'delete': validateDelete
+  'update': validateUpdate
 };
 
 /* only user-level tokens can add applications */
@@ -59,7 +59,7 @@ async function validateDelete(req, sid) {
   if (assignedPhoneNumbers > 0) throw new DbErrorUnprocessableRequest('cannot delete application with phone numbers');
 }
 
-decorate(router, Application, ['delete'], preconditions);
+decorate(router, Application, [], preconditions);
 
 /* add */
 router.post('/', async(req, res) => {
@@ -111,6 +111,47 @@ router.get('/:sid', async(req, res) => {
   }
 });
 
+/* delete */
+router.delete('/:sid', async(req, res) => {
+  const sid = req.params.sid;
+  const logger = req.app.locals.logger;
+  try {
+    await validateDelete(req, sid);
+
+    const [application] = await promisePool.query('SELECT * FROM applications WHERE application_sid = ?', sid);
+    const {call_hook_sid, call_status_hook_sid, messaging_hook_sid} = application[0];
+    logger.info({call_hook_sid, call_status_hook_sid, messaging_hook_sid, sid}, 'deleting application');
+    await promisePool.execute('DELETE from applications where application_sid = ?', [sid]);
+
+    if (call_hook_sid) {
+      /* remove call hook if only used by this app */
+      const sql = 'SELECT COUNT(*) as count FROM applications WHERE call_hook_sid = ?';
+      const [r] = await promisePool.query(sql, call_hook_sid);
+      if (r[0]?.count === 0) {
+        await promisePool.execute('DELETE from webhooks where webhook_sid = ?', [call_hook_sid]);
+      }
+    }
+    if (call_status_hook_sid) {
+      const sql = 'SELECT COUNT(*) as count FROM applications WHERE call_status_hook_sid = ?';
+      const [r] = await promisePool.query(sql, call_status_hook_sid);
+      if (r[0]?.count === 0) {
+        await promisePool.execute('DELETE from webhooks where webhook_sid = ?', [call_status_hook_sid]);
+      }
+    }
+    if (messaging_hook_sid) {
+      const sql = 'SELECT COUNT(*) as count FROM applications WHERE messaging_hook_sid = ?';
+      const [r] = await promisePool.query(sql, messaging_hook_sid);
+      if (r[0]?.count === 0) {
+        await promisePool.execute('DELETE from webhooks where webhook_sid = ?', [messaging_hook_sid]);
+      }
+    }
+
+    res.status(204).end();
+  } catch (err) {
+    sysError(logger, res, err);
+  }
+});
+
 /* update */
 router.put('/:sid', async(req, res) => {
   const sid = req.params.sid;
diff --git a/lib/routes/api/index.js b/lib/routes/api/index.js
index 64a71f5..f46ed6c 100644
--- a/lib/routes/api/index.js
+++ b/lib/routes/api/index.js
@@ -7,9 +7,16 @@ const isAdminScope = (req, res, next) => {
     message: 'insufficient privileges'
   });
 };
+const isAdminOrSPScope = (req, res, next) => {
+  if (req.user.hasScope('admin') || req.user.hasScope('service_provider')) return next();
+  res.status(403).json({
+    status: 'fail',
+    message: 'insufficient privileges'
+  });
+};
 
 api.use('/BetaInviteCodes', isAdminScope, require('./beta-invite-codes'));
-api.use('/ServiceProviders', isAdminScope, require('./service-providers'));
+api.use('/ServiceProviders', isAdminOrSPScope, require('./service-providers'));
 api.use('/VoipCarriers', require('./voip-carriers'));
 api.use('/Webhooks', require('./webhooks'));
 api.use('/SipGateways', require('./sip-gateways'));