The Westin Building Exchange is a major telecommunications hub facility located downtown Seattle, Washington.

[7] The facility has a pair of "Meet-me Rooms" on the 19th floor, which are used by telecommunication carriers and internet service providers to cross-connect their individual networks.

The Westin Building's meet-me room is the heart of the facility, where buyers and sellers of broadband services offer interconnectivity to their backbones and diverse services without the need to utilize telephone company provided interconnections.

While backup boilers are installed, they are rarely used, and Amazon estimates over the 25 year expected lifespan of the system it will save 80 million kilowatt hours of electricity, equivalent to 65 million pounds of coal, though over 80% of electricity in Seattle comes from hydropower.

[9][10][11] In 2020, real estate investment trust Digital Realty acquired a majority stake in the building and assumed management responsibilities.