Sending anonymous messages on WhatsApp is a common desire, perhaps for an innocent joke or to protect your privacy. However, it is essential to understand that WhatsApp, by its nature, does not offer an integrated function for anonymity. The platform identifies each user through the phone number connected to the account, making it impossible to obscure your contact or send messages without revealing it. Therefore, in order to achieve the goal of the anonymity, it is necessary to adopt alternative strategies and know the recent evolutions of WhatsApp security policies.
Fundamental and Precautions premises
Before entering into practical solutions, it is necessary to make some important premises. First, the use of this information must be limited to legitimate and greedy purposes, such as a joke to be revealed later or the protection of your privacy. It is absolutely forbidden to use anonymous communication methods to harass, threaten, insult or deceive other people. Behaviours of this kind, besides being morally reproveent, may have serious legal consequences and be persecuted penally.
Secondly, it is crucial to be aware of the increasingly stringent controls that WhatsApp applies against abuse. In recent years, the platform has introduced much more rigid checks on the reliability of the numbers used for recording. The services that generate VoIP numbers (Voice over IP) or temporary numbers are more frequently identified and blocked, making many of the “historical” methods obsolete or completely unusable. WhatsApp accepts almost exclusively real numbers and tends to refuse or block the activation of virtual and temporary numbers, often associated with suspicious activities. Many free services of “use and throw” numbers, once occasionally functional, are almost always ineffective today because already reported or banned at system level.
In addition, WhatsApp applies procedures rate limiting, which prevent repeated and automated creation of multiple accounts in a short time. This means that the numbers “use and throw” no longer represent a road. The only way to prove “anonymous” in the eyes of the recipient is to use a phone number that that person did not save in his address book. There are no systems to mask your contact; the only option is to use a different number than usual.
The Most Reliable Solution: A Secondary SIM or eSIM
Considering the strict restrictions imposed by WhatsApp, the simplest, safest and regulatory solution to send anonymous messages is to purchase and use a dedicated secondary SIM card. This number, unknown to the recipient, will allow you to communicate discreetly without revealing your identity.
Buy a Traditional SIM Card
The procedure for obtaining a new SIM card is relatively simple. You can choose from the “data only” offers of the main Italian mobile operators (TIM, Vodafone, WINDTRE, iliad) or opt for virtual operators like Kena Mobile, ho. mobile, Fastweb Mobile, PosteMobile and others. Since it is a secondary SIM card, a basic plan or the cheapest offer is often sufficient.
The purchase can take place online or directly in the store. In case of online purchase, most operators require a mandatory digital recognition system, such as SPID or CIE (Electronic Identity Card), to finalize activation. This requirement is imposed by the Italian regulations on telecommunications security, which means that it is not possible to obtain a completely anonymous SIM: the header with a valid document is always mandatory. The anonymity on WhatsApp, therefore, refers only to your contacts, not to the telephone operator or authorities. Once you receive your SIM card, you can activate it by following the instructions provided by the operator.
Use an eSIM
A modern and equally valid alternative is the use of an eSIM, provided that your smartphone supports it and that the chosen operator offers this kind of activation. An eSIM works exactly as a physical SIM: you are assigned a real and validated phone number, which can be registered on WhatsApp without any problem. The main advantages of eSIM are the immediate activation, which eliminates the expectation for the shipment of a physical card, and the possibility of having two numbers on the same smartphone without having to enter a second physical SIM.
Even for eSIM, the same rules apply to traditional SIM: there are no anonymous eSIM, since the header with a document is always mandatory. In addition, the eSIM does not circumvent WhatsApp security checks in any way: the number must still be real and not suspicious, otherwise the registration may be blocked.
Temporary and VoIP numbers: An Ineffective Method and Risks
The idea of using a temporary number to register a WhatsApp account may appear as a shortcut, but in the current reality this method has become almost entirely impractical and often risky.
Why Temporary Numbers No longer Work
In the past years, it was possible to exploit services of “use and throw” numbers offered by online platforms. However, the stringent anti-abuse measures implemented by WhatsApp have made most of these ineffective numbers for registration. The main reasons are:
- Recognition as public VoIP: Most temporary numbers are automatically recognized as public VoIP and blocked by the WhatsApp system.
- Numbers already used or banned: Many of these numbers are already associated with previous WhatsApp accounts or have been directly banned from the platform for violations.
- Fraudulent services and advertising: Several portals that promise free numbers are actually full of misleading advertising or attempt to collect personal data, compromising your privacy.
As a result, the probability that a number generated by these free services functions with WhatsApp is now close to zero.
Privacy Risks
In addition to ineffectiveness, the use of free temporary numbers entails significant privacy risks. Some of these portals may collect personal data, track user activity or even publicly expose received verification codes, cancelling any claims for security or anonymity.
VoIP Premium Services
The only scenario in which WhatsApp could accept a non-traditional number is the use of premium VoIP services paid, serious and legitimate, which provide “dedicated” numbers instead of public. In some cases, recording through these services can only be done via voice call verification, not via SMS. However, this solution is also very limited, it works more often with WhatsApp Business accounts and may not be effective at all for personal WhatsApp accounts, being however subject to WhatsApp anti-abuse controls and without a successful warranty.
For normal and reliable use of WhatsApp, then, relying on temporary numbers is no longer a route. The safest and most effective choice for a second number to use anonymously (for contacts, not the operator) remains the purchase of a secondary SIM card or an eSIM.
How to Configure WhatsApp with the New Number and Send Messages
Once you get the SIM card or activate the eSIM with the desired number, the process to send “anonymous” messages on WhatsApp is directed. Remember that the anonymity is only guaranteed if the number used is not present in the addressee’s address book.
Installation and Registration of the Account
- Install WhatsApp: Download and install the official WhatsApp Messenger client from the Google Play Store (or alternative store for Android) or the iOS/iPadOS App Store.
- Register the new number: Open the app, accept the terms and conditions and enter the new mobile phone number, ensuring you select the correct international prefix (for Italy it is +39).
- Check: Press on “OK” and wait for the activation code. WhatsApp will send it via SMS or, alternatively, via an automatic voice call if the SMS does not arrive. Enter the code in the appropriate field.
- Account Information: Enter a name for the account. If your goal is anonymity, it is crucial avoid entering a profile name or photo that can lead to your real identity.
With the latest security measures, if the account is used on multiple devices, the verification may be required in two mandatory steps, which consists of setting a PIN to be confirmed periodically. In addition, WhatsApp applies new anti-spam limits: newly created accounts may not be able to immediately send a high number of messages to prevent abuse. You may then notice some temporary restrictions with a newly created account.
Add Contact and Send Message
To send the message to the desired recipient, follow these steps:
- Add contact: Open the phone column associated with the new WhatsApp number. Add the number of the person you want to send the message to, completing the fields with Name, Surname, Country code and phone number, then save it.
- Start a conversation on WhatsApp: Open WhatsApp, press the comic icon (on Android, bottom right; on iPhone, top right or pen icon). You will find the contact just added in the list.
- Send the message: Tap the contact to open the chat, write your message and send it.
Once configured, you can also send messages to users not in the section via WhatsApp Web or desktop application for PC, following the normal WhatsApp usage procedures on these platforms.
Final considerations
In summary, sending anonymous messages on WhatsApp, in the sense of not revealing your identity to the recipient, it is possible but requires the adoption of a secondary and unknown phone number to the contact. Buying a physical SIM card or activation of an eSIM are the only reliable, safe and regulatory solutions. It is essential to discard the idea of using temporary numbers or free VoIP services, given their ineffectiveness, privacy risks and continuous blocks by WhatsApp. Always remember to use this information with responsibility and for legitimate purposes, respecting the privacy and security of others.
