I use the WhitePages API (developer.whitepages.com) to get the type of phone (landline or cellular) and the telephone service provider (Verizon, T-Mobile, etc.), but they only have a personal API that limits you 2 calls to the second and / or 1500 calls per day. The paid version, or "Pro", is at least $ 500 per month and / or $ 0.10 per call.
Does anyone know of another service where I can get this information for free or cheaper than $ 500 / $ 0.10 per call? If not, I will have to try to cache everything, and it will be technically against their TOS ...
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