Area code 503 (Oregon, july 1992 - july 1994) and 703 (northern Virginia).

+1-503-590-07XX

1993 - Big Boss joined Fairlight Amiga in May and became WHQ in June - where he remained until september of 1994.
1994 - WHQ for Razor 1911 pc between January (6 nodes) and March (9 nodes).

There's a session capture from July 1993.