How To Block a Phone Number on a Landline: A Comprehensive Guide

How To Block a Phone Number on a Landline

Despite the increasing prevalence of mobile phones, landlines continue to serve as a reliable communication medium for many households and businesses. 

However, they are not immune to the persistent annoyance of unsolicited calls. Learning how to block phone numbers on a landline can help you regain your privacy and peace of mind. 

In this guide, we will walk you through the process of how to block a phone number on a landline, discuss the various methods available along with their effectiveness, and provide tips to ensure you can effectively screen and manage incoming calls. 

Say goodbye to those irritating telemarketers and other unwanted callers, and take back control of your landline experience!

How To Block Phone Number on Landline

With spammers, scammers, robocallers, and all other unwanted landline callers making millions of phone calls every day, it makes sense that one of the top online searches is: "how to block phone number on landline".

People are desperate to make their landline phones stop ringing. And we can't blame them. So here are some common solutions to block phone number on landline - along with a breakdown of which actually work.

1. Check Your Landline Phone's Built-in Blocking Features

Many modern landline phones come equipped with built-in call-blocking features. To determine if your phone has this capability, consult the user manual or search online for your phone's specific make and model. 

If your landline phone supports call blocking, follow the steps outlined in the manual to block a specific phone number.

Effectiveness: 🟢 ⚪️ ⚪️ ⚪️ ⚪️

Notes: Using a landline's built-in features is usually a cumbersome process with a hard limit on the number "blockable" numbers. Not user-friendly.

2. Use Your Phone Service Provider's Call-Blocking Features

Most telephone service providers offer call-blocking features as part of their service plans. The exact process may vary depending on your provider, so it's essential to consult their customer support or website for detailed instructions. Here is a general outline of the process:

  1. 1. Contact your telephone service provider's customer support or visit their website to check if they offer call-blocking services.

  2. 2. If your provider offers call-blocking, inquire about any associated fees or charges. Some providers may include this service for free, while others may charge a nominal fee.

  3. 3. Follow your provider's instructions to block a specific phone number. This may involve logging into your account online or dialing a specific code on your landline phone.

Effectiveness: 🟢 ⚪️ ⚪️ ⚪️ ⚪️

Notes: Phone service providers refuse to admit they have a problem with spam calls. And their "solutions" are not very effective.

block phone numbers on landline →

3. Use a Traditional Call-Blocking Device

If your landline phone or telephone service provider does not offer built-in call-blocking features, you can use a dedicated call-blocking device. 

These devices connect to your landline phone and enable you to block specific numbers or entire groups of numbers, such as those from a particular area code. Follow these steps to use a call-blocking device:

  1. 1. Purchase a call-blocking device that is compatible with your landline phone. You can find these devices online or at local electronics stores.

  2. 2. Connect the call-blocking device to your landline phone according to the manufacturer's instructions.

  3. 3. Program the call-blocking device to block specific phone numbers or groups of numbers. Consult the user manual for detailed instructions.

Effectiveness: 🟢 ⚪️ ⚪️ ⚪️ ⚪️

Notes: Traditional call blockers only stop 5% of unwanted calls. Which means 95% still sneak into your home.

4. Use Anonymous Call Rejection

Another option for dealing with unwanted calls is Anonymous Call Rejection (ACR), a service offered by many telephone service providers. 

ACR automatically rejects calls from numbers that have their Caller ID information blocked. Here's how to activate ACR on your landline phone:

  • * Check with your telephone service provider to determine if they offer ACR and whether there are any associated fees.

  • * If your provider offers ACR, follow their instructions to enable the feature. This may involve dialing a specific code on your landline phone or activating the service through your online account.

Effectiveness: 🟢 ⚪️ ⚪️ ⚪️ ⚪️

Notes: Anonymous calls make up only a small percentage of unwanted calls. So even your telephone service provider offers this, and if you activate it, you will still be inundated with unwanted calls.

block phone numbers on landline →

5. Register with the National Do Not Call Registry

While this step may not block specific phone numbers, it can help reduce the number of unwanted calls you receive. 

The National Do Not Call Registry is a free service that allows you to opt out of telemarketing calls. Registering your landline phone number may significantly reduce the number of unsolicited sales calls you receive. 

To register your landline phone number, follow these steps:

  1. 1. Visit the National Do Not Call Registry's website at

  2. 2. Click on the "Register Your Phone" button and follow the prompts to enter your landline phone number and email address.

  3. 3. Confirm your registration by clicking on the link sent to your email.

Effectiveness: ⚪️ ⚪️ ⚪️ ⚪️ ⚪️

Notes: Taking the time to sign up for the Do Not Call Registry is at best a waste of time. Why? Because scammers are already breaking the law. What makes you think they are going to follow the rules of the Do Not Call list? You can read more here →

the imp system a landline call blocker that works

6. Report Unwanted Calls

If you continue to receive unwanted calls after taking the above steps, report these calls to the appropriate authorities. 

Doing so can help track down and penalize repeat offenders. Follow these steps to report unwanted calls:

  1. 1. Take note of the caller's phone number, date, and time of the call, as well as any other relevant information.

  2. 2. Report the unwanted call to your telephone service provider. They may be able to provide additional assistance or take action against the caller.

  3. 3. File a complaint with the Federal Trade Commission (FTC) at Provide the FTC with as much information as possible about the unwanted call.

  4. 4. If the unwanted call is a robocall, you can also report it to the Federal Communications Commission (FCC) at The FCC may take action against companies that violate telemarketing and robocall regulations.

Effectiveness: 🟢 ⚪️ ⚪️ ⚪️ ⚪️

Notes: Similar to signing up for the Do Not Call Registry, reporting calls might feel good, but it doesn't do anything. There are billions of scam calls placed every month. The FTC doesn't have the bandwidth to go after them all.

7. Join imp

If you want to block a phone number on a landline, imp is the only solution that works 100% of the time. Why? Because imp knows who you want to talk to. And then imp checks every single call that comes in. If it's a caller imp recognizes, your phone rings. Otherwise imp simply sends the caller to voicemail. No ring. No mess. No problem.

Effectiveness: 🟢 🟢 🟢 🟢 🟢

Notes: Keep your current landline hardware. Keep your current phone number. Plug and play setup. Start blocking phone numbers on a landline in less than 5 minutes.

Does imp block a private number on a landline?

Do you want to block a private number on a landline? imp does exactly this.

Chances are you receive calls on your landline from phone numbers Caller ID labels as "Private". And they are "private" because the scammers are trying to trick you into answering them.

But when a Private number calls imp, imp silences the call so you don't even know there was a call at all.

Maintaining Your Privacy and Peace of Mind

Learning how to block a phone number on a landline can ultimately provide a more enjoyable and peaceful communication experience. 

By following the steps outlined in this guide, you can effectively block specific phone numbers, reduce the number of unsolicited calls, and regain control of your landline phone. 

Remember, if you continue to receive unwanted calls from spammers and potential scammers, report them to the appropriate authorities to help protect yourself and others from this persistent and seemingly unending annoyance.

Still have questions about How To Block a Phone Number on a Landline?

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