This building has always housed a variety of data centers, some of them more well-known than others. But to passersby, it isn’t a data center at all; it’s an office tower full of lawyers and accountants and the IRS.

We’ve already mapped several data centers and exchanges within the building [1][2], so a data center inside a data center seems kind of weird. There’s a documented building=data_center tag for buildings built as data centers, but since this building was originally built as an office building, changeset 158989447 replaces telecom=data_center with building:use=data_center. telecom=carrier_hotel or telecom=colocation_centre would be reasonable too.

[1] https://www.openstreetmap.org/node/8897151054
[2] https://www.openstreetmap.org/node/8897129886