UPDATE: the production facilities seem to be closed; only office buildings remain somewhere.

Per Wikipedia [1], Lucent's factories and offices are^W were situated in places like Murray Hill and Mount Olive, NJ, North Andover, MA, Reading, PA, and a bunch of other places in the US.

I think it makes^W made Nokia, which owns Lucent properties, "more US" than, say Ericsson and Samsung, until these facilities were closed.

[1]: https://en.wikipedia.org/wiki/Lucent_Technologies#Divisions