nomoat / Veriphone / Alternatives

Alternatives to Veriphone

Veriphone: Checks whether phone numbers are real and shows country, carrier and line type, by API or bulk CSV upload. Here is 1 other product that do a similar job. Of these, 1 has a free plan.

emailvalidation.io
Checks single addresses or whole lists for syntax, mail server and mailbox problems, by upload or API, with an email finder too.
Free plan · Email marketing