# US West One of the seven [[wiki/Regional Bell Operating Companies|Regional Bell Operating Companies]] created in 1984, serving the Mountain West and Northwest. Acquired by [[wiki/Qwest Communications|Qwest Communications]] in 2000; Qwest was later acquired by [[wiki/CenturyLink|CenturyLink]] (2011), which renamed itself [[wiki/Lumen Technologies|Lumen Technologies]] in 2020. Documented in [[articles/Bell Labs and the Distributed Architecture of American Power|Bell Labs and the Distributed Architecture of American Power]].