France (FR)

Locale name

France

ISO code
The International Organization for Standardization two character representation for the given locale.

FR

Region

Europe

Mobile country code
A three digit code associated with the given locale and used in conjunction with a Mobile Network Code to uniquely identify mobile networks.

208

Dialing code
The dialing prefix used to establish a call or send an SMS from one locale to the given locale.

+33

Two-way SMS supported
Whether Twilio supports two-way SMS in the given locale.

Yes

Number portability available
Whether number portability is available in the given locale.

Yes

Twilio concatenated message support
Concatenation refers to the capability of splitting a message that is too long to be sent in one SMS into smaller pieces and then joining the pieces at the receiving end so that the receiver sees the message as one. 

Yes*
For certain sender ID types this may not be supported. Where messages are split and rejoined may vary based on character encoding.

Message length
How many characters can be sent given a particular message encoding before the message will be split into concatenated segments.

Inbound: GSM 3.38=160, Unicode=70 Outbound: GSM 3.38=160, Unicode=70

Twilio MMS support
Multimedia Messaging Service (MMS) provides a standards-based means to send pictures and video to mobile phones.

Converted to SMS with embedded URL

Sending SMS to landline numbers
How Twilio handles an SMS message destined for landline telephone number.

You cannot send SMS to a landline destination number: the Twilio REST API will throw a 400 response with error code 21614, the message will not appear in the logs, and the account will not be charged.

Compliance considerations
Twilio strongly encourages customers to review proposed use cases with qualified legal counsel to make sure that they comply with all applicable laws. This table lists some general best practices.

Message delivery to M2M numbers is on best effort basis only.

Marketing SMS traffic can be sent between 08:00 and 21:30 local French time, Monday through Saturday. Traffic sent outside of these hours, on Sundays, or on public holidays, is subject to heavy filtering or carrier blocking. Transactional messages (delivery updates, OTPs, account notifications) are exempt and can be sent around the clock.

URLs and branded domains are far more deliverable than generic URL shorteners, which can trigger filtering by French aggregators.

Sending adult content, controlled substance, and cannabis related content is strictly prohibited.

As part of the new Telemarketing law in France, from July 1, 2025, organizations are prohibited from contacting customers by SMS for the aim of offering services, selling equipment or carrying out work relating to housing with a view to achieving energy savings, producing renewable energy or adapting them to aging or disability.

Twilio strongly encourages customers to review proposed use cases with qualified legal counsel to ensure compliance with all applicable laws and the requirements of AF2M's Code of Conduct (https://af2m.org/charte-business-messaging/). The table below provides some general best practices:

1. Get opt-in consent from each end-user before sending any communication to them, particularly for marketing or other non-essential communications.
2. SMS marketing campaigns must support HELP/STOP messages and similar keywords in the end-user’s local language. In France, including a web link in the message is also an acceptable method for OPT-OUT. The use of a mobile phone number as an opt-out mechanism is strictly forbidden and may result in fines from operators for non-compliance.
3. Do not contact end-users on do-not-call or do-not-disturb registries.

Operator network capability
Whether mobile operators in the given country support the feature.

Not Required

Supported

Twilio supported
Whether Twilio supports the feature for the given country.

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Supported
Learn more

Sender ID preserved
In some countries sender IDs for certain sender types are not preserved and are changed for compliance and/or deliverability reasons. In these countries mobile subscribers will see a different ‘from sender ID’ than the one sent by you.

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Yes

Provisioning time
Provisioning is the process of getting the sender ID approved and registered with mobile networks (depending on country requirements). Provisioning time is how long this process takes in the given country.

N/A

N/A

UCS-2 support

N/A

Supported

Use case restrictions

N/A

Alphanumeric sender IDs containing special characters are  strictly forbidden and may result in non delivery and fines from operators for non-compliance.

Generic Sender IDs must be avoided. Do not use vague terms such as SMS, Info,Verify, or assistance-related terms such as Assistance, Help, or Support, as these are highly susceptible to carrier blocking. Always use a clear, brand-specific Sender ID instead.

For some sensitive Sender IDs, French mobile operators may ask for Letter Of Authorization to prove the legitimacy of traffic coming in from Twilio.

Messages submitted to the NRJ Mobile and Truphone networks will be overwritten with random shortcodes outside the Twilio platform.

Best practices

N/A

You must use Alphanumeric Sender IDs to send A2P messages.

Operator network capability
Whether mobile operators in the given country support the feature.

Supported

Not Supported

Supported

Twilio supported
Whether Twilio supports the feature for the given country.

Supported

Supported

Supported

Sender ID preserved
In some countries sender IDs for certain sender types are not preserved and are changed for compliance and/or deliverability reasons. In these countries mobile subscribers will see a different ‘from sender ID’ than the one sent by you.

Yes

No

Yes

Provisioning time
Provisioning is the process of getting the sender ID approved and registered with mobile networks (depending on country requirements). Provisioning time is how long this process takes in the given country.

N/A

N/A

8-10

UCS-2 support

Supported

Supported

Supported

Use case restrictions

Refer to our Regulatory Guidelines for Prescribed/Prohibited use cases.

French mobile operators do not support message delivery via international Numeric Sender ID. Submission by International Long Codes will be attempted on a best-effort basis. The Long Code will be overwritten with a generic Alphanumeric Sender ID or Short Code outside the Twilio platform.

Refer to our FAQs for short code best practices.

Best practices

N/A

You must use Alphanumeric Sender IDs to send A2P messages

Refer to our FAQs for short code best practices.