The federal government will stop using the DUNS number to identify entities and instead use a Unique Entity Identifier (UEI).
The University of Pittsburgh’s UEI is MKAGLD59JRL1.
Pitt’s UEI, along with other current institutional information needed for proposals and forms, can be found on the Office of Sponsored Programs (OSP) website: https://www.osp.pitt.edu/about/data-proposal-preparation-general.