How to Make Free Anonymous Calls in 2025: 7 Proven Methods

Making anonymous calls for free is key for privacy in many situations. No matter if you're a business owner, journalist, or just value your personal privacy, knowing how to make anonymous calls without revealing your number is important. In this guide, we'll dig in to 7 proven ways to make anonymous calls for free while keeping your identity protected. From VoIP services to temporary numbers, we'll cover all the options available in 2025. Anonymous phone call concept

Use *67 for Basic Caller ID Blocking

The simplest way to make an anonymous call is using *67 before dialing. This method hides your number from most recipients.

How it works:

Dial *67 before the phone number

Complete the call as normal

Your number will show as 'Private' or 'Blocked'

Works on most landlines and mobile phones

Note that some businesses may reject blocked calls, and emergency services always see your number. Apple Support explains how call blocking works on iOS devices. SecondLine app interface

SecondLine Business Phone Setup for Professional Communication

SecondLine offers a great solution for making anonymous calls while maintaining professional communication. It provides a separate business number that keeps your personal number private.

Key benefits:

Get a dedicated US or Canadian number

Make and receive calls anonymously

Includes voicemail and call forwarding

Works alongside your existing phone

You can also set up WhatsApp with your SecondLine number for anonymous messaging. This is perfect for business owners who want to separate work and personal communications. VoIP calling interface

Free VoIP Services Like Globfone

VoIP services like Globfone let you make free anonymous calls online without revealing your real number.

How to use:

Visit the Globfone website

Enter the number you want to call

No registration required

Calls are routed through their system

Other similar services include PopTox, which offers free international calls from your browser. These services are great for occasional anonymous calls but may have time limits.

Temporary Number Apps Like Hushed

Apps like Hushed provide temporary numbers you can use for anonymous calling. Hushed explains their anonymous call features in detail on their website.

What to know:

Download the app on your smartphone

Choose a temporary number

Make calls that show this number

Numbers can be disposed of after use

These apps often offer free trials or low-cost options for short-term use. They're perfect for situations where you need anonymity temporarily. PBX call blocking

Configure Your PBX to Block Caller ID

Business phone systems can be set up to make anonymous outgoing calls. The 3CX community discusses PBX configuration for anonymous calling.

Technical setup:

Access your PBX admin panel

Modify outbound call rules

Set caller ID to 'Anonymous'

Test with different carriers

This method requires some technical knowledge but provides the most control for business users. Always check local regulations before implementing. Burner phone on table

Public Payphones for Complete Anonymity

While rare today, public payphones offer true anonymous calling when available.

Where to find them:

Some airports and bus stations

Government buildings

Hospitals

Shopping malls in larger cities

Payphones don't require any personal information or accounts. Just insert coins or use a prepaid calling card. They're becoming harder to find but remain the most anonymous option when available. VoIP setup diagram

Open Source VoIP Solutions

For tech-savvy users, open source VoIP software can provide anonymous calling capabilities.

Options to consider:

Linphone with Tor routing

Jitsi with privacy settings

Mumble for voice chat

Self-hosted Asterisk servers

These solutions require more setup but offer the highest level of control over your calling privacy. The FreePBX community has discussions about routing anonymous calls that may be helpful.

Final Thoughts

Making anonymous calls for free is possible through several methods in

From simple *67 blocking to more advanced VoIP solutions, you can choose the option that fits your needs. For regular anonymous calling, services like SecondLine provide the best balance of convenience and privacy. Remember that laws about anonymous calling vary by location, so always use these methods responsibly.