In short. For someone who is deaf, hard of hearing, aphasic or dysphonic, the phone doesn't ring: it vibrates and displays text. An anonymous message sent to such a recipient follows exactly the same technical rules as any other, but with two decisive differences — there is no voice fallback if doubt arises, and the written word is the only trace. Hence the requirement: a sender who can be identified by something other than a number, a self-contained text, and a reply route planned from the outset.
Information verified on 30 October 2026 on the public pages of Arcep, the CNIL, service-public.fr, the ministry responsible for disabled people, as well as on Apple's and Google's documentation. This article provides general information; settings paths vary depending on the system version and the phone model.
Why does this case deserve an article of its own?
Because anonymity by text message implicitly relies on an escape hatch: if the recipient has doubts, they call back. They dial the number, they hear a voice, they recognise someone or reach a voicemail box. That reflex is the silent safety net of any anonymous communication.
Take the voice away, and the net disappears. For a deaf or hard-of-hearing person, an unknown number on the screen is not a lead to follow up: it's a wall. They can't call to check. They can't listen to a voicemail. All they have is what you wrote, and whatever the screen displayed around it.
Conversely, this is also the group for whom text messaging is structurally the most useful. Written text isn't a makeshift solution: it's the primary channel. Instant messaging and SMS have done more for telephone accessibility than thirty years of specialised devices.
Three practical consequences, which shape everything that follows:
- The message must be complete. No "call me back", no "it's about what we discussed". Nothing will fill the gap.
- Identity must be carried by the text, not by the number. Anonymous to the network doesn't have to mean opaque to the recipient.
- A reply must be possible. A message with no return route leaves the person in a situation even more uncomfortable than silence.
What changes technically when you write to a deaf person?
Nothing, on the network side. A text message is still a text message: it leaves from a number or a gateway, passes through the operator, and lands on the recipient's SIM card. Anonymity plays out in exactly the same place — the identifier displayed on arrival.
What changes is on the receiving end, and it comes down to very concrete accessibility settings:
- Notifications are often amplified. LED flash on receipt, custom vibrations, persistent display. On iPhone, "LED Flash for Alerts" is found in Settings → Accessibility → Audio & Visual. On Android, the equivalent sits in Settings → Accessibility → Flash notification. The upshot: your anonymous message is more visible in the room than an ordinary one.
- Text previews are frequently shown in full. Many users turn off the reduced lock screen so they can read without unlocking. We've covered elsewhere what the lock screen reveals about an anonymous SMS; in this context, exposure is at its maximum.
- The phone is often set down, not held. To feel a vibration, the device is frequently on a table, a worktop or an armrest. In other words: visible to anyone nearby.
One simple writing rule follows. An anonymous message intended for a deaf or hard-of-hearing person must assume it will be read over their shoulder. The first sentence is the only one guaranteed to be seen; make sure it compromises no one.
Anonymous to whom? The distinction that settles everything
Two very different things are constantly confused:
| What you hide | Who it's hidden from | Typical use |
|---|---|---|
| Your number | The recipient and their address book | Protecting your personal line |
| Your identity | The recipient themselves | A genuinely anonymous message |
| Nothing at all | — | An ordinary text message |
In the vast majority of legitimate cases — warning a neighbour, passing on service information, reaching someone without handing over your line — it's the first row that interests you. You want to hide the number, not vanish.
For a recipient who can't make phone calls, this distinction is vital. Sign your message. In the body of the text, in plain words:
"Hello, this is Camille, your neighbour on the third floor. The Chronopost parcel addressed to you is at my place, I'm in until 7 pm. You can reply to this message, I'll receive it."
This text is sent from a number the recipient doesn't know. Yet it is perfectly readable. Technical anonymity is preserved, human opacity has gone. That is almost always the right setting.
Conversely, a strictly anonymous message — a report, an alert, sensitive information — remains possible, but it must then be self-sufficient and expect nothing in return. We devoted an article to the art of sending a single anonymous SMS without pushing: the principle applies here with even greater force.
How do you hide your number in practice?
Let's restate the point half of readers discover here: the #31# prefix only hides voice calls. It has no effect on a text message. If you dial #31# and then send a text, your number goes out in the clear. That's a technical limit of the SMS service as standardised, not an oversight by your operator.
The options genuinely available in France:
- An online sending gateway. The message arrives from a short code or an alphanumeric sender ID. Your line never appears. This is the method described on the page send an SMS without giving your number.
- A second number on the same SIM card or as an eSIM. Technically this is no longer anonymity but compartmentalisation: the recipient sees a number, it just isn't yours. See our guide on dual SIM and secondary numbers.
- A messaging app whose identifier is separate from the number. Only works if the recipient uses the same app — an assumption to verify beforehand, not afterwards.
For anyone who types a great deal because voice isn't an option, ergonomics matter as much as technology: a compact Bluetooth keyboard transforms typing comfort on a tablet or smartphone, and a note-taking tablet saves you from pulling out a phone in face-to-face situations. These aren't gadgets: they're the everyday prosthetics of written communication.
What official relay services exist in France?
This is the part many people are unaware of, and it's worth knowing before improvising a solution.
- The universal telephone access service. Since the Act of 11 February 2005 on equal rights and opportunities, supplemented by the Act of 7 October 2016 for a Digital Republic, French operators must offer a simultaneous written translation service, in French Sign Language (LSF) or Cued Speech French (LfPC) for deaf and hard-of-hearing people. Each operator — Orange, SFR, Bouygues Telecom, Free Mobile — provides its own access, usually through a dedicated app. The conditions are set out on each operator's official support pages and on service-public.fr.
- 114, the accessible emergency number. To reach the emergency services (SAMU, police, fire brigade) without speaking, 114 is the free national number accessible by SMS, fax and total conversation. It is reserved for emergencies: it is not a general messaging channel. The official 114 website sets out the details.
- Accessible administrative front desks. Many public services now offer a video interpreting facility. The list is maintained by the administrations themselves.
These schemes are not anonymous — nor do they claim to be. They serve another purpose: guaranteeing access. They must be clearly distinguished from anonymity, which is a choice made by the sender. Confusing the two leads to nasty surprises — for instance, believing that an operator relay will hide your identity. It won't.
What if the person receives an anonymous message that worries them?
The situation reverses. A deaf or hard-of-hearing person who receives a hostile anonymous text is objectively in a harder position: they can't dispel the doubt with a call, and the text stays in front of their eyes.
The right reflexes, in order:
- Don't reply. Any reply confirms the number is active.
- Capture it. A full screenshot, with the timestamp visible and the number or sender ID displayed. Our guide on how to build solid evidence explains what gives a screenshot weight in court.
- Report it to 33700. This number, run by the AF2M association together with the operators, handles unwanted texts and calls. Forward the message to 33700, then send the sender's number when prompted. The whole process is written — which is precisely its value here.
- Block. On iPhone: open the conversation → tap the number at the top → Info → Block this Caller. On Android with Google Messages: long-press the conversation → Block and report spam.
- File a complaint if necessary. Harassment by electronic means of communication is punishable under Article 222-33-2-2 of the French Criminal Code. A complaint can be filed online or in writing with the public prosecutor; the procedure is described on service-public.fr and on cybermalveillance.gouv.fr. Only the courts can order an operator to lift anonymity.
For written steps of this kind, keeping an incident log book at home in which you note the date, time and content of each message saves you from reconstructing a timeline from memory three months later. Investigators appreciate chronologies kept day by day, and a simple spiral notebook does the job.
How should you write the message, sentence by sentence?
An anonymous text aimed at someone who can't make calls follows a particular writing discipline. Four blocks, in this order, in under 160 characters if possible — beyond that, the message is split and may arrive out of order, as we explain in our article on the 160-character SMS limit.
| Block | Role | Example |
|---|---|---|
| Identification | Remove the unknown | "This is Camille, your third-floor neighbour" |
| Purpose | Say why, straight away | "your parcel is at my place" |
| Constraint | Give the time frame | "I'm in until 7 pm" |
| Reply | Open the way back | "reply to this number" |
What to avoid:
- Abbreviations and textspeak. For someone whose French is a second language after LSF — the case for many native signers — "luv u lots sry bout yday" is unreadable. Write in standard language, short sentences, one conjugated verb per sentence.
- Irony and implication. Without intonation, an innuendo becomes an attack.
- Emojis replacing words. As a complement, yes. In place of information, never.
- Heavy attachments. An MMS may not arrive depending on the plan; stick to text.
If the exchange is to continue, plan for it from the very first message. A reply service lets the recipient write back to you without your line being revealed: how it works is explained on the page receiving a reply to an anonymous SMS. In this particular context, that's less a convenience than a matter of basic courtesy.
What the law covers
Three points, with sources.
Sender anonymity is not prohibited. No French provision forbids sending a message without revealing your number. What is punishable is the content and the persistence: harassment (Article 222-33-2-2 of the Criminal Code), threats (Articles 222-17 et seq.), identity theft (Article 226-4-1). We set out this framework in the article is it legal to send an anonymous SMS in France?.
Anonymity is never absolute. Connection data is retained by operators under the conditions laid down by the French Postal and Electronic Communications Code, and can be requisitioned by the judicial authorities. A French gateway also keeps technical logs.
Disability is not a neutral circumstance. The Criminal Code provides for heavier penalties where the offence is committed against a person whose particular vulnerability, due notably to an infirmity or a disability, is apparent or known to the perpetrator. In other words: a malicious message sent to someone you know to be deaf carries a stiffer sanction. The texts can be consulted on Légifrance.
Three typical situations, three good responses
You need to warn a deaf neighbour about an incident in the building. Hide your number via a gateway, sign the message in plain words, give the fact, the time and what they should do. Don't expect a reply: treat the message as a notification.
You're a professional and need to confirm an appointment. Use an alphanumeric sender ID in the organisation's name rather than an unknown number: the recipient identifies the sender at a glance. Our guide on writing to a client without giving your personal number covers this setup.
You want to re-establish a delicate contact. A single message, signed, with no pressing request, and an open route for a reply. If nothing comes back, nothing comes back. No answer is itself an answer, and it deserves all the more respect given that the person can't call you back to say no.
Updated on 30 October 2026. Official sources: Légifrance (Criminal Code, Postal and Electronic Communications Code), service-public.fr, Arcep, CNIL, cybermalveillance.gouv.fr, 33700 (AF2M), the official 114 website, Apple's and Google's accessibility documentation.
Frequently asked questions
Does #31# hide my number on a text message? No. The #31# prefix only affects voice calls. For a text message, you need a sending gateway, a secondary number, or an app whose identifier is separate from your line.
Does a deaf person receive anonymous texts differently? Technically no: the message arrives in the same way. In practice, accessibility settings (flash, vibrations, full preview on the lock screen) often make it more visible, and the absence of a voice fallback makes doubt harder to dispel.
Can 114 be used to send an anonymous message? No. 114 is the emergency number accessible to deaf, hard-of-hearing, aphasic or dysphonic people. It is reserved for emergencies and is not intended as an anonymous channel.
What should I do if I receive repeated anonymous messages and can't make phone calls? Don't reply, capture each message with its timestamp, report it to 33700 by text, block the sender, and file a written complaint if the messages continue. All of these steps can be taken without a voice call.
Can I sign a text message while keeping my number hidden? Yes, and it's usually the best option. Hiding the line while signing the text protects your privacy without confronting the recipient with a complete unknown.
