How to Block Spam Calls on Android & iPhone?

Haseeb Awan
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April 18, 2023


Phone spam calls have been annoying people for a very long time now. Despite numerous attempts by mobile phone companies and smartphone manufacturers, spam calls continued to grow and harass people worldwide.

Every month, Americans become the target of billions of robocalls, and according to research, many of the calls are fraud-related. From a financial perspective, spam calls are very lucrative. Therefore, spam calls have become a profitable means to boost business and earn profit by using telemarketing to increase sales.

According to the survey conducted in 2021, nearly 46% of Americans claimed they received spam phone calls every day. Consequently, spam calls are going to increase in the coming years.

Unfortunately, spam calls and robocalls have taken it up a notch by hiding the spam with local cell phone numbers, to which many have become victims of spam calls fraud. Many spam callers pretended to be part of charities during the pandemic and conducted fake surveys. Fortunately, you have a complete arsenal of smartphone tools at your service. You can block spam callers, use Do Not Disturb mode or use third-party applications to stop spam calls.

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The Impact of Spam Calls on Business

The average number of spam calls a person receives has doubled over the last few years. Spam calls can harm phone communication between businesses and customers. Due to the spike in spam calls, consumers prefer not to answer calls. Many avoid sharing personal information over the Phone; companies collecting customer information rely on online resources.

Methods to communicate with customers should change and adapt to customer preferences. According to the study, it is said that 40% of customers prefer to be contacted via email, and 24% of customers are comfortable sharing information over the Phone.

Many businesses send a text message to their customers before calling them to build trust and increase the chances of doing business over the Phone.

That said, business owners need to go out of their way to build trust and offer services to their customers to run the business smoothly.

Here are a few steps to combat these annoying calls on your smartphone.

How to Block Spam Calls on Android?

You can rebuff spam calls by blocking spam phone numbers one by one. Blocking numbers may seem like a tiring and despairing attempt to stop getting spam calls, but if you are constantly getting spam calls from the same number, you can block that number.

Most android phone comes with built-in options to filter spam calls and block these spam calls.

To block a specific number, simply select the number and click on the “Block” option.

Here’s how you can do this. From your android phone, go to Settings, choose the blocking icon and choose the option “block all numbers except contacts”. These icons may differ depending on the mobile device you are using. However, the steps to block unwanted phone calls are standard in android mobile phones.

Another method you can use using the “Phone” app to block unwanted calls:

• Open the Phone app

• Navigate to recent calls or call history tabs

• Select the number you want to block

• Choose the option that says block or report as spam

• Proceed to confirm the step to block the number

Moreover, you can manually add and block phone numbers as well.

Pro tipYou can easily block a couple of phone numbers using built-in smartphone features, but it takes a lot of time and effort. Efani offers a secure mobile service plan that keeps your private information private.

How to Block Spam Calls on iPhone?

Like Android phones, iPhones offer customers a useful built-in feature to stop unknown numbers.

Here’s how you can block spam callers on iPhone on iOS 15:

Silence Unknown Callers

  • Got to Settings
  • Select or tap on Phone
  • Click on silence; unknown callers

This option will silence any number not stored in your contact list, and the spam calls will go straight to missed calls.

Block numbers 

This is another easy way to block receiving spam calls from unidentified numbers on your iPhone.

  • Open the “Phone” app
  • Go to recent calls or select the number you wish to block
  • Press info icon
  • Choose “Block this caller” and tap to block contact

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Protect Your Phone Now


Spam calls can be annoying. However, several third-party apps with these built-in features are available for Android and iPhones to block spam calls, such as Truecaller, and RoboKiller. Both these apps offer features to block spam call and even telemarketing calls. 

Another excellent service available to stop spam calls is Efani. It offers a secure mobile service along with an encrypted SIM card. Efani ensures its customers’ privacy and does not sell your information to third parties. On top of that, Efani offers protection against SIM swapping, thus keeping you safe from identity theft.

Haseeb Awan
CEO, Efani Secure Mobile

I founded Efani after being Sim Swapped 4 times. I am an experienced CEO with a demonstrated history of working in the crypto and cybersecurity industry. I provide Secure Mobile Service for influential people to protect them against SIM Swaps, eavesdropping, location tracking, and other mobile security threats. I've been covered in New York Times, The Wall Street Journal, Mashable, Hulu, Nasdaq, Netflix, Techcrunch, Coindesk, etc. Contact me at 855-55-EFANI or for a confidential assessment to see if we're the right fit!

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