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Local Call Spam? Here’s How to Block Robocalls on Landlines and Mobiles

It happens… often. Mobile phone and landline, business phone and personal. The number looks legitimate, perhaps even the area code and prefix appear to be local – you answer the call only to be met with silence, a robocall or the unmistakable sounds of a call center. Welcome to Spoofing or, in the case of spam calls spoofed to look like a local or familiar number – Local Call Spam or Neighbor Spoofing.

Caller ID spoofing used to require an advanced knowledge of telephony equipment which could be quite expensive. However, with the popularity of VoIP phones and availability of open source software any one can spoof calls with minimal costs and effort. There are even spoofing services, where customers pay in advance to receive a PIN number – which is used along with the desired destination number and the number they wish to appear on a caller id. The call is then transferred with the spoofed number chosen by the third party.

According to the 2017 Call Fraud Report from Pindrop, there has been a 113% increase in fraudulent calls within the past year, with more than 46% of phone calls in the United States being spam. Active phone lines are valuable to scammers, so answering a spoofed call can often result in opening your line to even more spam calls. The problem has gotten so big that earlier this month, the FCC filed a complaint in federal district court seeking to stop two related operations that allegedly facilitated billions of illegal robocalls nationwide.

Scammers can use numbers from the local police department, bank or any other reputable business so you think you’re talking to a legitimate representative – hoping they can trick you into giving away valuable personal information so it can be used in fraudulent activity or sold illegally. Common scams include:

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Credit Card Rate Reduction: You are promised a reduction in your credit card interest rates for an upfront fee and confirmation of your personal information, which can then be used for identity theft.

Prize Notification: From “free” home security systems to week long cruises that require your credit card information for a small “processing fee.”

Microsoft Tech Support: The caller claims you have a virus on your computer and they need access to your machine to fix it.

Tax Scams: Posing as the IRS, scammers demand a prepaid card for taxes you owe or claiming you have a refund and requiring personal information to confirm.

Auto Insurance: Offering you a lower rate, once you disclose your personal information.

National Do Not Call Registry: Emails and calls from posing as someone from FTC (Federal Trade Commission) advising that your registration on the National Do Not Call Registry is about to expire. Registrations never expire.

PROTECTING YOUR LANDLINE FROM SPOOFED CALLS

In addition to the National Do Not Call Registry, in November of 2017, the Federal Communications Commission (FCC) adopted new rules allowing phone companies to proactively block illegal calls that are likely to be fraudulent. Since then, many of the major telephone companies provide resources to help consumers block or filter annoying calls:

ATT – Digital Phone Protect

Charter Spectrum – Nomorobo

Comcast Xfinity – Anonymous Call Rejection

Verizon – Stop Unwanted Calls

Windstream – Features & Information

PROTECTING YOUR MOBILE PHONE FROM SPOOFED CALLS

It’s important to note that mobile phones are especially susceptible to malicious text messages and attachments. Scammers are taking advantage of the limited ability (and inclination) to verify links, photos and other attachments sent via text messaging.

For iPhone users, numbers can be blocked from your recent call list, iMessage, Facetime and Contacts via the information button:

While blocking calls on an iPhone is simple, there are many different ways to block calls on Android smartphones, depending on the manufacturer and the version of Android OS that you are using. For most Android devices, numbers can be blocked from the call screen:

To block from within the Android Messages app, long press the contact and tap the Block Icon in the upper-right corner. You can also tap the More Options Icon (three dots stacked vertically) next to the magnifying glass, select Settings > Call Blocking, and manually add the number you want to block.