Area codes 408 and 669 - Wikipedia
https://en.wikipedia.org/wiki/Area_codes_408_and_669
OverviewSan JoseHistoryLos GatosMobile serviceService areaSee alsoBefore 1949, San Jose telephone service was manual. A subscriber would lift the receiver and wait for the operator to inquire, "Number Please?" Most telephone numbers started with Ballard or Columbia. Mayfair numbers served the east side. The City manager's telephone number was Ballard 1 while most numbers had four digits and a letter, (for example: Ballard 2345 W). One of four letters was appended to telephone numbers: J, M, R, or W to designate each station conne…
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