How to check if you have a pending ISBN Application If you submitted an ISBN Application, check your application status by following these steps: 1. Go to http://116.50.242.167/ins/user/login. 2. Encode username, password, and click login. 3. Click the SUBMISSIONS tab, to see the status of your application. For further questions or clarifications, email isbn@nlp.gov.ph. | National Library of the Philippines