Interplay's address is: 12301 WILSHIRE BLVD, SUITE 407 LOS ANGELES CA 90025. Business registration filings for California confirm this was the correct address as of the 2020 filing.
The Q3 quarterly report for 2009 shows the 12301 Wilshire address. It's the first SEC filing using it. Interplay has occupied different suites within the building, but, that looks like the current address.
The move away from 100 N. CRESCENT DRIVE, BEVERLY HILLS happened some time ago.
Interplay is a Delaware registered company, but, Delaware wants you to pay for info.