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Abusive telephone solicitation, voice or SMS spam: what to do?
Verified 09 January 2026 - Public Service / Directorate of Legal and Administrative Information (Prime Minister)
Soliciting by telephone for energy renovation work or for the adaptation of housing for the elderly or disabled
Since 1er July 2025, the law provides for specific rules for better protect consumers when they are approached by telephone for energy renovation work or for the adaptation of housing for elderly people or people with disabilities.
The professional must have the necessary qualifications or authorizations. Otherwise, these calls are prohibited.
These rules apply in addition to other obligations : respect of schedules, limitation of the number of calls, clear information on the identity and commercial character of the call.
In case of non-compliance, enhanced criminal and administrative sanctions may be pronounced: up to 2 years in prison and €300,000 of a fine.
If you receive unwanted commercial phone calls (we are talking about abusive telephone solicitation), Voice Spam or SMS Spam (unknown correspondent prompting you to call back a premium number), solutions exist to stop these disorders. We present them to you.
What applies to you ?
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Abusive telephone solicitation
Abusive telephone canvassing is characterized by the receipt ofunsolicited commercial calls. This includes, for example, companies who contact you to offer products or services, such as a telephone subscription, without your prior consent.
Warning
A malicious call containing insults or threats falls under the telephone harassment that is an offense (a separate criminal offense). Similarly, if you are prompted to call back a premium number, then it is voice spam, which is a different fraudulent practice.
If you do not wish to receive commercial telephone calls, you can register one or more of your landline and/or mobile phone numbers (up to 8 numbers) on an official list against abusive telephone solicitation Bloctel :
Subscribe to the opposition list Bloctel
This registration is free of charge for all consumers.
Signing up on Bloctel also allows you to report calls that you deem abusive.
This registration does not allow to technically block abusive calls, but professionals will no longer have the right to call you to approach you, except in certain cases.
If you change one or more phone numbers, you must unsubscribe the number(s) and register the new number(s) if you do not wish to be solicited.
There are 4 cases where the law allows certain professionals to call you despite your registration on Bloctel. These are calls from:
- institutes of study or polling,
- non-profit associations,
- professionals for the sale of newspapers, periodicals or magazines,
- companies with whom you have an ongoing contractual relationship. These companies can call you if you are a customer at home and only if the commercial offer is related to your contract. This includes offers of products or services related to your contract or that are complementary to the subject of your contract or likely to improve its performance or quality.
These professionals must nevertheless respect certain days and times to call you. Indeed, telephone canvassing is only allowed monday to friday, 10 a.m. to 1 p.m. and 2 p.m. to 8 p.m. It is, however, forbidden on Saturdays, Sundays and public holidays.
Moreover, it is forbidden for the same professional or a person acting on his behalf to approach you or to try to approach you by phone more than 4 times during a period of 30 calendar days.
If you refuse to canvass during the 1er call, the professional or the person acting on his behalf has the obligation to no longer contact you for a period of at least 60 days from your refusal.
The trader or the person acting on his behalf shall be liable to an administrative fine in the amount of €75,000(if it is a natural person) or €375,000(if it is a legal person).
FYI
Any contract concluded as a result of a telephone solicitation made by not respecting the registration on Bloctel is considered invalid and can be canceled in court.
At the beginning of each phone call, the professional must also give you the following information:
- His identity or the identity of the person on whose behalf he is calling
- The commercial nature of his appeal.
This information must be given to you in a clear, precise and understandable manner.
Without this information, the trader may be liable to a fine of up to €15,000.
The professional's telephone number must also be displayed or face a fine of up to €375,000. So he cannot don't reach you on a hidden number.
The telephone canvassing in insurance is governed by strict rules. Insurers must first obtain your consent to continue the call and stop the conversation if you are not interested. There must be a 24-hour delay before signing a contract. Sales cannot be made on the first call. Calls must be recorded and kept for 2 years.
Commercial canvassing platforms can no longer call you from numbers starting with 06 or 07 because they are associated in everyone's mind with mobile phones. They must use numbers starting with one of the following prefixes:
- For the city:
01 62, 01 63, 02 70, 02 71, 03 77, 03 78, 04 24, 04 25, 05 68,05 69, 09 48, 09 49
- For the overseas departments and regions (DROM) :
09,475 to 09,479
These numbers are referred to as “ versatile checked ». They are reserved for uses such as telephone canvassing or automated calls. This allows for greater transparency and helps you identify and filter sales calls.
Please note
Since the ᵉ 1ʳ January 2026, French telephone operators must display the ‘hidden number’ for calls made from the foreigner with a french mobile number that could not be authenticated by the network.
When this statement appears, it can mean either that the person calling you has voluntarily chosen to hide their number, or that the number could not be authenticated by the operators for technical reasons, without this automatically meaning that the call is fraudulent.
This measure aims to facilitate the identification of potentially questionable calls and to increase vigilance against scam attempts involving the spoofing of mobile numbers.
Any contract concluded with an operator of electronic communications services (telephony, internet, television) must include information on the possibility of registering for free on Bloctel.
Without this information, the operator may be liable to a fine of up to €75,000(if it is a natural person) or €375,000(if it is a legal person).
You must report it on the Bloctel website by filling out a declaration form accessible from your personal area.
This registration is free of charge for all consumers.
Your declaration is sent to the departmental services of the DGCCRF: titleContent who shall carry out such investigations as they deem necessary.
If you continue to receive abusive calls despite the steps you have taken to block them and unsubscribe from them, you may consider reporting them to the DGCCRF: titleContent or Cnil: titleContent.
To do this, you can use Signal Conso:
Voice Spam
Voice spam refers to a fraudulent practice of receiving suspicious calls, often from numbers beginning with 089, 081 or 082.
These calls hang up immediately after you pick up or stay online for a few seconds without interaction. If you don't answer, the number appears as an absent call, prompting you to call back.
The main goal is to push you to compose a overtaxed number, resulting in high costs. These actions can be considered as an attempt of scam.
Voice spam can also manifest via a classic number (for example, beginning with 01 40...). In this case, even if you pick up the phone, you are asked to call back an overtaxed number, which is also a fraudulent practice to extract money from you.
Warning
If your correspondent picks up and offers you a commercial offer, it is a telephone solicitation not voice spam.
You can block the number of the correspondent by sending by SMS to 33,700 a message containing the mention Voice Spam followed by the number of your correspondent who prompts you to call him back.
The 33700 is the official platform to fight against voice and SMS spam.
An SMS message will be sent to you by 33,700 to confirm that you have received your report.
Sending an SMS to 33,700 is free if you are a customer with one of the following operators:
- Auchan Telecom
- Bouygues Telecom
- CIC Mobile
- Cofidis Mobile
- Crédit Mutuel Mobile
- Free
- NRJ Mobile
- Orange.
For other operators, the service can cost the price of a normal SMS.
In addition, some applications offer to block voice spam themselves. Your operator can offer such an application.
You can identify and report voice spam online, even if you received a call on your landline phone:
When you report spam to 33700, the effect is not immediate. Processing spam requires the operator to have received several reports and to take measures that may take time to implement.
If you continue to receive abusive calls despite the steps you have taken to block them and unsubscribe from them, you may consider reporting them to the DGCCRF: titleContent or Cnil: titleContent :
Spam by SMS
SMS Spam is an unwanted SMS. This SMS prompts you to call back a type overcharged number 089..., 081... or 082--to pretend a lottery win, for example. Such practices may fall under a scam attempt.
You can also receive commercial offers by SMS without wanting to defraud you.
The company usually offers to send the message STOP by SMS to stop these SMS.
To block an unwanted message received by SMS, you must forward that message to the number 33700.
To facilitate the processing of this message, do not add any comments.
Who shall I contact
When you report an SMS spam to 33700, it is transmitted to the mobile phone operator issuing the number used for the spam and to your mobile operator (if it is not the same). They can then lead various actions :
- Cut the premium SMS number that SMS SPAM prompts you to send a message to
- Cut the premium phone number that SMS SPAM prompts you to call (number starting with 08, or 4-digit number starting with 3)
- Cut the number sending SMS SPAM (number starting with 06, 07, or +336, or +337)
- In the most serious cases, a complaint can be lodged with the police services concerned.
Sending an SMS to 33,700 is free if you are a customer with one of the following operators:
- Auchan Telecom
- Bouygues Telecom
- CIC Mobile
- Cofidis Mobile
- Crédit Mutuel Mobile
- NRJ Mobile
- Orange
- SFR.
For other operators, the service can cost the price of a normal SMS.
In addition, some phones offer to block spam by SMS. Your operator can offer such an application.
Once you have forwarded the message to 33700, you will receive the following message from 33700: “To complete your report, return to 33700 the number that sent you the unwanted message”. A final message from 33700 informs you that the report is complete.
To make this message easier to process, do not add any comments to your message.
When you report spam to 33700, the effect is not immediate. Processing spam requires the operator to have received several reports and to take measures that may take time to implement.
Who can help me?
Find who can answer your questions in your region
0809 540 550 DGCCRF - ConsoResponse
Are you having a problem following a purchase? Do you have a question about a point of law before buying or ordering?
You can get an answer from an agent of the DGCCRF: titleContent by calling the 0809,540,550.
Opening hours of the service:
Number not overtaxed
- Monday and Tuesday: from 8.30am to 12.30pm and from 1.15pm to 5.15pm
- Wednesday: from 1:15 pm to 5:15 pm
- Thursday: from 8.30 am to 12.30 pm
- Friday: from 8:30 am to 4 pm
Opposition to telephone solicitation
Opposition to telephone canvassing: sanctions
Telephone canvassing and commercial prospecting
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Service-Public.fr
Ministry of Economy
French Association of Mobile Multimedia (AFMM)
Ministry of Economy
Ministry of Economy