NPA-NXX - 408-257
This is the 408-257 subcode (NPA-NXX) prefix page. Follow a prefix to find the number you are looking for. We divide our pages up to make them more user friendly to navigate!
The 408-257 subcode mainly covers San Jose in Santa Clara county. But other numbers maybe included as well.
We have a database of information derived from the public phone records of California state. Many of the numbers in this subcode are Regular Landline registered to At&t California. We hear they employ a large number of people in the California office.
Recently there have been an increase in reported calls, we've had over 1781642 comments across our systems for the 408-257 subcode.
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847-478-8977 518-642-8841 586-336-6478 563-577-4022 909-643-2196502-627-8759 623-241-8228 817-333-6368 410-839-2802 469-374-2161