Supra Lockbox Activity: Updated Through the Week of April 16 – April 22 by RMLS Communication Department | Apr 30, 2012 | Lockbox, Statistics This Week’s Lockbox Activity Decreases for Washington and Oregon When comparing the week of April 16 – April 22 with the week prior, the number of times an RMLS™ subscriber opened a Supra lockbox decreased 4.4% in Washington and 6.1% in Oregon.