To find a school's URN number, you can follow these steps:
Visit the Get Information about Schools website: https://get-information-schools.service.gov.uk/Search?SelectedTab=Establishments
Search for the educational establishment you are interested in.
Once you select the school from the search results, the URN will be displayed next to the heading 'URN'.
The URN is a unique reference number allocated to all schools by Edubase and can also be found in the school's OfSTED report.