Depleting the Address Store (IMAGE) University of Southern California Caption Web addresses are nearing full allocation. Yellow boxes indicate unallocated blocks, while green areas show responses to census and high utilization. Credit USC Information Sciences Institute Usage Restrictions Credit USC Information Sciences Institute License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.