Why you should never return a robocall - it could cost you a small fortune

You know when your phone rings once, then stops? Don't call back, unless you are willing to risk a very costly international call to Mauritania, even though the called ID shows it as a local call.

From Lifehacker:

If you get a call from a familiar area code, you might feel tempted to return it, but the Federal Communications Commission is now warning consumers not to call any unknown numbers back. If you do, you risk paying huge fees in toll number charges.

According to a recent statement by the FCC, this Wangiri (Japanese for one ring) robocall scheme is targeting numbers in short bursts, often during the middle of the night, using a 222" country code (located in Mauritania in West Africa). But scammers can mask their area code by spoofing or changing their caller ID information to reflect a local area code, according to Alex Quilici, founder of YouMail, a robocall-blocking voicemail app.

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