646-331-6813 seems to be a landline phone number, which is registered by the company called Omnipoint Communications, Inc. - NY. The phone number probably located in New York (New York), based on its area code. If you want to know more, you should check out other publicly available sources (e.g.: yellow and white pages, phone books).
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| Long Version: | Six Four Six Three Three One Six Eight One Three |
| Short Version: | Six hundred forty-six, Three hundred thirty-one, Sixty-eight, Thirteen |
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