The Support team helped me with this a few months ago, API not needed. From the Data Mangement DHCP view, export data (all DHCP scopes) in Infoblox CSV import format. Then use Excel to sort / search / filter for the specific address.
Hi Piotr, Hope you are doing well! Wanted to check in and see if you found a solution to your DDI question. I'm happy to reach out to the team and ensure we provide you some help. Please let me know if you've resolved the issue. Eric