To make a phone survey, we need to discover the set of active phone numbers in a region. The way we see the solution is to generate random phone numbers and verify if they are active. So, we look for a cheap phone number verification service, preferably with API, to verify a large set of randomly generated numbers. Can anybody suggest another way to get the set of active phone numbers, if any?
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Users of Vendigi’s Home data range from home and garden retailers to insurance institutions to telecom companies.
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