A matched telephone number is one that has a mailing address associated with it. Typically, it also has a name matched to it. The majority of matched telephone numbers are also listed telephone numbers, but some are unlisted. Unlisted numbers (those not listed with directory assistance or published in any local telephone book) can be matched to an address (and possibly a name) because the commercial vendors that perform the matching use databases that contain some unlisted telephone numbers with addresses and names, such as those that can be retrieved from public records in many states (e.g. vehicle registration lists, public tax bills, and other public records and databases). However, this matching process is not 100% reliable, since people often move or change their telephone ...
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