see this link

https://illuminatikarate.com/blog/finding-the-carrier-of-a-cell-phone-number-in-php/

but it seems that the CloudVox have been shutdown.

I have not found a good solution yet, just get some free web page like:

http://www.phonevalidator.com/results.aspx?p=7776665555

or

http://www.whitepages.com/phone/1-777-666-5555

we can hack it.