How to Stop Blocked Numbers Leaving Voicemail on Android & iPhone?

Yes, a blocked number can leave a voicemail even though you won’t receive a notification, and the message is typically stored in a separate folder. You can find blocked number voicemails in the “blocked calls” or “spam” folder within your phone’s voicemail settings.

Most modern smartphones redirect blocked calls to voicemail instead of ringing. When you block a number, your device prevents that caller from reaching you directly via phone calls or text messages. However, blocked numbers can still leave voicemails because the voicemail system operates independently from your device’s call-blocking function. Essentially, your phone blocks the call at the device level, but the voicemail server still receives and records the message.

You can stop blocked numbers from leaving voicemail on Android & iPhone by contacting your service provider, using third-party apps to control voicemails, or using Google Voice.

Here is the detailed information on how to stop blocked numbers from leaving voicemail.

Your carrier can help you to avoid getting voicemail from the block numbers. The different carriers offer different options.
 

Verizon

As a Verizon user, you can stop blocked numbers' voicemails by blocking a phone number through your My Verizon account. Furthermore, the carrier provider offers a Call Filter Plus feature, which costs $3.99 per month/line or $10.99 monthly for more than three lines.
 

AT&T

If you are using the services of AT&T, you can use its ActiveArmor app for free. In particular, the key function of this app is to reduce unwanted calls. However, you can change its settings and block specific numbers to stop leaving voicemail.
 

T-Mobile

T-Mobile offers a service called Family Allowances to its users, which allows account holders to block specific numbers from contacting them. Numbers blocked using its 'Never Allowed' feature will hear an automated message stating that the person they dialed cannot receive calls before the call is disconnected.
 

VoIP service provider

If you are a virtual phone number user, you can simply contact your service provider to block the number and voicemail. Many VoIP business phone systems allow you to block a number completely, which includes blocking calls, SMS, and voicemails, while some providers may allow you to block only the voicemail from a specific number.

You can use third-party call blocking apps to stop blocked numbers from leaving a voicemail. Unlike your phone’s built-in tools, these apps give you stronger control over unwanted calls.

One such app is Call Control that intercepts calls before they ever reach your carrier’s voicemail system. In simple words, the blocked caller is completely cut off as they won’t hear a ring to leave a voice message. This level of blocking is exactly what many users look for when voicemail spam becomes a problem.

Moreover, many sources have stated YouMail and Hullomail as solutions to stop unwanted voicemails from blocked numbers. However, as per our research, these tools can reject or redirect calls to spam folders, but not directly stop blocked numbers from leaving voicemail.

So, while YouMail and Hullomail may help filter calls, apps like Call Control show how true call interception works to prevent blocked numbers from ever leaving a voicemail. Nonetheless, it’s best to test it on your own device to see how effective it is.

Apart from contacting your carrier provider and using a third-party app, you can also use Google Voice to stop blocked numbers from sending voicemails. However, you need to use Google Voice as your main number. Then, you can simply block the number that has been bothering you. After doing so, when the caller contacts you, all they hear is “Number not in service,” also preventing you from getting a voicemail.

At the end of the day, stopping voicemails from blocked numbers isn’t straightforward. Yes, you can reach out to your carrier, try third-party apps, or even set up Google Voice. But each of these options comes with its own limitations. Some don’t fully block voicemails, while others require extra steps that feel more like workarounds than real solutions.