C# port of Google's common Java, C++ and Javascript library for parsing, formatting, storing and validating international phone numbers. http://code.google.com/p/libphonenumber/
Microsoft.Recognizers.Text.Sequence provides robust recognition and resolution of series entities like phone numbers, URLs, and e-mail and IP addresses.
DOTS Phone Append 2 is a real-time API that enables you to append missing consumer and business phone numbers to your contact data records by cross-referencing their name and address against large authoritative datasets. Phone Append also validates and standardizes the submitted street addresses...
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Microsoft.Recognizers.Text.Sequence provides robust recognition and resolution of series entities like phone numbers, URLs, and e-mail and IP addresses. This is exact same library as the Microsoft.Recognizers.* packages, but with compiled Regex.