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Bulk SMS in Mauritania: ARE, Sender ID and Consent Guide

Bulk SMS Mauritania guide: the ARE regulator, Mauritel, Mattel and Chinguitel routes, sender ID registration, consent, Arabic and French text and GSM-7 limits.

Updated 9 min read

By OmniChannels.ai Editorial Team · Reviewed by BroadNet Messaging Solutions Team

SMS & OTP

Short answer

To send bulk SMS in Mauritania, use a provider with routes to Mauritel, Mattel and Chinguitel, register an alphanumeric sender ID of up to 11 characters (Latin or Arabic) before launch, and message only people with verifiable opt-in. Include an opt-out keyword in every promotion, keep OTPs separate, and remember that Arabic text is Unicode at 70 characters while plain French fits 160 in GSM-7.

On this page
  1. What rules apply to bulk SMS in Mauritania?
  2. Which operators carry SMS in Mauritania?
  3. How does sender ID registration work in Mauritania?
  4. What consent do you need before sending?
  5. How should you separate OTP and promotional traffic?
  6. How do Arabic and French affect SMS length?
  7. When should you send?
  8. What does a launch checklist for Mauritania look like?
  9. Can WhatsApp complement SMS in Mauritania?
  10. A worked example: a Nouakchott online shop
  11. What are the common mistakes?
  12. How OmniChannels.ai helps

Key takeaways

  • Our regulation data lists the Autorité de Régulation (ARE) as the regulator and records alphanumeric sender IDs, Latin or Arabic, up to 11 characters, with a typical lead time of 10 to 14 business days.
  • Three mobile networks appear in our coverage data, all with direct routes: Mauritel (609-01), Mattel (609-02) and Chinguitel (609-10).
  • Our regulation data calls for verifiable opt-in (logged source, timestamp, IP and channel) and an opt-out keyword, STOP or its Arabic form, in every marketing message.
  • Arabic messages are Unicode and hold 70 characters (67 per part); French fits GSM-7 at 160 (153 per part) until a character such as ê or ô appears, which forces Unicode.
  • We have not found a regulator-published time-of-day window for promotional SMS in Mauritania; schedule promotions for local daytime and keep OTPs and alerts on a transactional route.

This guide is for e-commerce, banking, telecom-adjacent and operations teams that want to send business SMS to mobile numbers in Mauritania: OTPs, delivery alerts, reminders and promotions. It explains who regulates what, how sender IDs work, what consent evidence to keep and how Arabic and French text affect message length. It is a practical overview, not legal advice; confirm requirements with Mauritanian counsel and the operators before launch.

What rules apply to bulk SMS in Mauritania?

Three layers apply: the telecom regulator and operator policy, data protection law, and your own consent records. No single statute is called a bulk SMS law.

Layer What it covers Where to check
ARE and the operators (Mauritel, Mattel, Chinguitel) Telecom regulation, sender ID set-up, routes, filtering are.mr
Law No. 2017-020 of 22 July 2017 Protection of personal data, including phone numbers used for messaging ILO NATLEX record
Your consent log Proof that each recipient agreed to marketing Your own records

Our regulation data lists the Autorité de Régulation (ARE) as the regulator. The status of enforcement under the 2017 law has been described differently in public sources, so ask counsel what applies to you today instead of relying on a summary.

Which operators carry SMS in Mauritania?

Three mobile networks appear in our coverage data, each with a direct route.

Operator MCC-MNC
Mauritel 609-01
Mattel 609-02
Chinguitel 609-10

Send a test message to a handset on each network before any campaign and read delivery reports per operator. Our guide to improving SMS delivery rates shows how to diagnose a weak route, and a delivery receipt tells you what each status means.

How does sender ID registration work in Mauritania?

Business SMS uses an alphanumeric sender ID of up to 11 characters, in Latin or Arabic letters, so recipients see your brand instead of a number. Our data says the requirements are set by the operators and confirmed at onboarding, and records a typical lead time of 10 to 14 business days. Treat that as a range, not a promise.

Step What to do
1. Classify Decide which traffic is transactional (OTP, alerts) and which is promotional
2. Choose names Use your registered brand name; avoid names that imitate banks, operators or government bodies
3. Prepare documents Company registration papers and an authorisation letter naming the sender IDs and your provider
4. Submit Your provider files with the operators and tracks each approval
5. Test Send an OTP and a promotion to Mauritel, Mattel and Chinguitel handsets

Public guides disagree on whether registration is mandatory on every network so use an alphanumeric ID and test on every network. Our sender ID letter generator drafts the authorisation letter, the sender ID checker shows the current position, and the Mauritania sender ID page has the country summary. If you want us to prepare and file the registration with you, see registrations; approval decisions stay with the operators and regulators. For background on formats, read sender ID types explained and the alphanumeric sender ID definition.

Collect verifiable opt-in before any promotional SMS. Our regulation data calls for a logged source, timestamp, IP and channel for each opt-in, kept for the life of the marketing relationship, and an opt-out keyword in every marketing message.

A safe routine:

  1. Capture consent with a record: the exact wording shown, date and time, channel and number.
  2. Say who is sending and why at sign-up, in the language the customer uses.
  3. Offer a reply keyword. Our data lists STOP and its Arabic form, so support both.
  4. Honour opt-outs immediately and keep one suppression list across campaigns and channels.
  5. Do not buy lists. Purchased numbers have no consent trail.

Our opt-in consent generator drafts the wording and the guide to opt-in consent across channels shows how to store it.

How should you separate OTP and promotional traffic?

Keep OTPs and service alerts on a transactional sender ID and route, and promotions on their own. A promotion inside a login code puts your OTPs at risk if the route is filtered.

Traffic Example Practice
Transactional OTP, payment confirmation, delivery alert No promotion inside; own sender ID; any hour
Promotional Sale, new product, loyalty offer Consented numbers only; opt-out in the message; daytime schedule
Mixed "Your parcel shipped. Get 20% off your next order" Avoid; the offer makes it promotional

For OTP content, expiry and security, read the OTP authentication messages guide.

How do Arabic and French affect SMS length?

A message in GSM-7 holds 160 characters (153 per part when split); anything in Unicode holds 70 (67 per part). Arabic is always Unicode. French mostly fits GSM-7, which includes é, è, à, ù and ç, but not ê, ô, î or ï. See GSM-7 and concatenated SMS.

Encoding Single message Per part when concatenated
GSM 7-bit 160 characters 153
Unicode (UCS-2) 70 characters 67

These examples were counted against the limits ("Sahel Shop" is synthetic):

Message Encoding Characters Parts
Votre code Sahel Shop : 482913. Ne le partagez avec personne. GSM-7 61 1
Sahel Shop : -20 % sur les boubous jusqu'au dimanche. Stop : sahelshop.example/stop GSM-7 83 1
رمز التحقق الخاص بك من متجر الساحل: 482913 Unicode 42 1
Sahel Shop : votre colis est prêt à être récupéré demain. Unicode 57 1

The last row shows the trap: the ê in "prêt" and "être" moves a short French message to Unicode, so its limit drops from 160 to 70. Check final copy in the SMS character counter, and read SMS character limits and Unicode for the details.

When should you send?

We have not found a regulator-published time-of-day window for promotional SMS in Mauritania, and our regulation data records none. Agree sending hours with your provider and the operators, schedule promotions for local daytime and avoid late evenings and prayer times where your audience would find them intrusive. OTPs and alerts can go at any hour. The send time planner helps with scheduling, and SMS marketing rules by country compares markets.

What does a launch checklist for Mauritania look like?

A good launch plan covers registration, consent, content and monitoring before the first send. Use this order:

  1. Confirm the traffic types. List every message you will send and mark each as transactional or promotional.
  2. Start sender ID filing early. Our published lead time is 10 to 14 business days; add buffer for missing documents.
  3. Check your consent records. Every promotional number needs a logged source, timestamp and channel.
  4. Write in Arabic and French. Arabic is the official language and French is widely used in business, so have a native speaker review each template.
  5. Count characters. Run every template through the SMS character counter and note which ones split.
  6. Test on Mauritel, Mattel and Chinguitel. Send each template to a real handset on every network and compare delivery reports.
  7. Set up the suppression list. Opt-outs from replies, links and other channels must reach one list.
  8. Schedule sensibly. Put promotions in local daytime and keep OTPs on their own route.
  9. Review after week one. Compare delivery by operator and by sender ID, then fix the weakest route first.

Can WhatsApp complement SMS in Mauritania?

Yes, many teams use SMS for OTPs and reach, and WhatsApp for richer conversations with customers who opted in. WhatsApp messages use Meta-approved templates in marketing, utility and authentication categories, and customers must have opted in. SMS remains the fallback for people who are not on WhatsApp or have no data connection. Our platform can send both from one place and fall back from one channel to the other; see WhatsApp pricing for how the channel is charged and read two-way SMS if you need replies.

A worked example: a Nouakchott online shop

"Sahel Shop" (synthetic) sells clothing online and wants OTPs for account login, delivery alerts and a monthly promotion in French and Arabic.

  • It registers two sender IDs, one transactional and one promotional, and tests both on Mauritel, Mattel and Chinguitel.
  • It collects consent at checkout with a tick box, storing the wording, timestamp, IP and number.
  • OTPs go in the customer's language: Arabic in Unicode within 70 characters, French in plain GSM-7.
  • The monthly offer avoids ê and ô so French copy stays at one part, and carries a STOP line.
  • Opt-outs feed one suppression list that also covers WhatsApp and email.

What are the common mistakes?

  • No consent evidence. Without a timestamp and source you cannot answer a complaint.
  • Look-alike sender names. Names that imitate banks or operators risk blocking.
  • Skipping per-network tests. Public guidance differs, so test all three.
  • Circumflex accents. One ê turns a 160-character message into a 70-character one.
  • Mixing OTP and promotion on one sender ID.
  • Treating lead times as promises. Add buffer beyond 10 to 14 business days.

How OmniChannels.ai helps

OmniChannels.ai is powered by BroadNet, which has direct routes to Mauritel, Mattel and Chinguitel in our coverage data. We prepare and file sender ID registration with you, support Arabic and French content, and give you per-operator delivery reports, with SMPP 3.4 for high volume. For indicative list prices, see the Mauritania SMS pricing page, then book a demo. WhatsApp can complement SMS for customers who prefer it; see WhatsApp pricing.

Frequently asked questions

Is bulk SMS legal in Mauritania?

Yes, companies send bulk SMS for OTPs, alerts and marketing through licensed operator routes, provided they have a lawful basis for contacting each number and honour opt-outs. There is no single law called a bulk SMS law, so the rules come from the regulator (ARE), the operators and data protection legislation. Confirm current requirements with local counsel and your provider.

Do I need to register a sender ID for Mauritania?

Plan on it. Our regulation data says alphanumeric sender ID requirements are set by the operators and that BroadNet confirms the current requirements during onboarding, with a typical lead time of 10 to 14 business days. Public vendor guidance differs, so test delivery on all three networks before you launch a campaign.

Which operators carry SMS in Mauritania?

Our coverage data lists Mauritel (MCC-MNC 609-01), Mattel (609-02) and Chinguitel (609-10), each with a direct route. Read delivery reports per operator rather than as one blended figure, because a weak network can hide behind a healthy average.

Can I send SMS in Arabic and French to Mauritania?

Yes. Arabic is the official language and French is widely used in business. Arabic text is sent as Unicode, so one message holds 70 characters. Plain French fits the GSM 7-bit alphabet at 160 characters, but characters such as ê or ô are not in it and switch the message to Unicode.

Do I need consent to send promotional SMS in Mauritania?

Treat consent as required. Our regulation data calls for verifiable opt-in with a logged source, timestamp, IP and channel, retained for the life of the marketing relationship. Mauritania also has a personal data law (Law No. 2017-020), so keep consent records and take legal advice on edge cases.

How do I handle opt-outs?

Put an opt-out keyword in every marketing message, STOP or the Arabic equivalent, and honour it across all your campaigns. Our regulation data says opt-outs are honoured network-wide and audited by the regulator. Keep one suppression list shared with other channels such as WhatsApp and email.

Sources

  1. Autorité de Régulation (ARE), Mauritania
  2. Loi n° 2017-020 du 22 juillet 2017 relative à la protection des données à caractère personnel, ILO NATLEX
  3. 3GPP TS 23.038: Alphabets and language-specific information

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