West central office

West (STTLWAWE) is a central office serving West Seattle. It was built in 1922, and cut over on March 3, 1923 along with Parkway and Melrose. The building originally housed a panel switch. In 1941, the first No. 1 Crossbar in the Pacific Northwest was installed to augment the panel. In the 1970s, an addition was built to house a 1A ESS, and as of 2025, the building currently houses a 5ESS.

The museum's P-type ringing machine is from the basement of this office.