I have to agree with "Seasider18". I've received several calls from 914 290 5339 and they never leave a message or answer when picked up. Generally, we don't answer any calls from "unavailable" or "Unknown" and especially when it's both "unknown" and number is "unavailable" as well. I have to doubt that it's legitmate.
Received 2nd call today, and 5th over the last 3 days from this number. Caller does not identify themselves via Caller ID or by leaving a message. No one should be able to call a number continuously without IDing themselves. Notifying FTC & States Attorney general regarding these types of calls. Please consider doing the same.
I got March of Dimes, but no oportunity to press one and be put on DNC list. Message on answering machine says they will call again later. I bet they sure will!