API call for Department Number is extracting a code that doesn't match any of our department numbers

Summary:

API call for Department Number is extracting a code that doesn't match any of our department numbers.

Is this the correct field name or is it called something different when using the API call?

<tleo:DepartmentNumber>16138</tleo:DepartmentNumber>

Content (please ensure you mask any confidential information):

Need the correct Department Number to be pulled by vendor with API call.

Version (include the version you are using, if applicable):

24A.01

Code Snippet (add any code snippets that support your topic, if applicable):