Tianyancha is a website providing enterprise information inquiry service, which can inquire enterprise registration information, legal person information, shareholder information and so on. If you want to query the corporate ID number of an enterprise, you can follow the following steps:

1. Open your eyes and check official website (/).

2. Enter the name or keyword of the enterprise to be queried in the search box, and click "Search".

3. In the search results page, find the enterprise to query, and click to enter the enterprise details page.

4. In the enterprise details page, you can see the basic information of the enterprise, shareholder information, legal person information, etc. Click the "Legal Person Information" tab to view the legal person information of this enterprise.

5. On the legal person information page, you can see the basic information of the legal person, such as name, gender, age and education. If the corporate ID number of the enterprise is in the public range, you can also view it on this page.

It should be noted that according to relevant laws and regulations, an individual's ID number belongs to private information and should not be disclosed publicly or at will. Therefore, if you can't find the corporate ID number on public platforms such as Tianyancha, you can try to inquire through other channels or consult with relevant departments or institutions.