---
title: "Bulk SMS in Comoros: ANRTIC, Sender ID and Language Guide"
description: "Bulk SMS Comoros guide: ANRTIC regulator, Comores Telecom and Yas routes, Latin or Arabic sender IDs, opt-in and STOP rules, and French and Arabic text length."
canonical: "https://omnichannels.ai/blog/bulk-sms-comoros-guide/"
language: "en"
updated: "2026-11-06"
publisher: "BroadNet Technologies"
brand: "OmniChannels.ai"
category: "sms"
primaryQuery: "bulk sms comoros"
keywords: ["bulk sms comoros", "sms comores", "sender id comoros", "anrtic sms", "comores telecom yas sms", "sms marketing comoros", "otp sms comoros"]
published: "2026-11-06"
author: "OmniChannels.ai Editorial Team"
reviewer: "BroadNet Messaging Solutions Team"
readingMinutes: 9
answer: "To send bulk SMS in the Comoros, use a provider with routes to Comores Telecom and Yas Comoros, register a Latin or Arabic alphanumeric sender ID of up to 11 characters (typical lead time 10 to 14 business days), and message only people who opted in. The regulator is ANRTIC. Keep proof of each opt-in, put an opt-out keyword in every marketing message and write in French or Arabic as your audience prefers."
takeaways: ["The regulator is ANRTIC (Autorité Nationale de Régulation des TIC). Our regulation data says sender ID requirements are set by the operators and confirmed by BroadNet during onboarding, with a typical lead time of 10 to 14 business days.", "Two mobile networks appear in our coverage data: Comores Telecom (654-01) and Yas Comoros (654-02), both reached through aggregator routes rather than direct connections.", "Our regulation data lists alphanumeric sender IDs in Latin or Arabic script, up to 11 characters.", "Opt-in must be verifiable (logged source, timestamp, IP and channel) and retained for the life of the marketing relationship; every marketing message must carry an opt-out keyword such as STOP or its Arabic equivalent.", "French without circumflex or other non-GSM accents fits 160 characters; Arabic is always Unicode at 70 characters (67 per part)."]
faq: 
  - q: "Is bulk SMS legal in the Comoros?"
    a: "Yes. Businesses send OTPs, alerts and promotions through operator routes. We found no standalone bulk SMS statute, so the rules come from ANRTIC, operator policy and our regulation data, which calls for verifiable opt-in and an opt-out keyword in marketing messages. Take local legal advice for your use case."
  - q: "Do I need to register a sender ID in the Comoros?"
    a: "Plan on it. Our regulation data lists alphanumeric sender IDs in Latin or Arabic script of up to 11 characters, set up through the operators, with BroadNet confirming current requirements at onboarding and a typical lead time of 10 to 14 business days. Timing is a range, not a promise."
  - q: "Which operators carry SMS in the Comoros?"
    a: "Our coverage data lists Comores Telecom (654-01) and Yas Comoros (654-02), both on aggregator routes. Press and operator branding has changed over time, so you may see Comores Telecom also called Huri. Confirm current names and delivery behaviour with your provider before launch."
  - q: "Do I need opt-in consent to send marketing SMS in the Comoros?"
    a: "Treat it as required. Our regulation data calls for verifiable opt-in with a logged source, timestamp, IP address and channel, kept for the life of the marketing relationship. Keep that evidence in a system you can search, and do not use purchased lists."
  - q: "What opt-out keyword should I use?"
    a: "Our regulation data says every marketing message must carry an opt-out keyword such as STOP or the Arabic equivalent, honoured network-wide and audited by the regulator. Offer the keyword in the language of the message, keep a single suppression list and apply opt-outs immediately."
  - q: "Do French accents change SMS length?"
    a: "Some do. The GSM 7-bit alphabet includes é, è, à, ù and ç, but not ê, â, î, ô, û or ï. One of those letters switches the whole message to Unicode, where a single message holds 70 characters instead of 160. Arabic text is always Unicode."
sources: 
  - title: "Autorité Nationale de Régulation des TIC (ANRTIC), Comoros"
    url: "https://www.anrtic.km/"
  - title: "3GPP TS 23.038: Alphabets and language-specific information"
    url: "https://www.3gpp.org/dynareport/23038.htm"
---

# Bulk SMS in Comoros: ANRTIC, Sender ID and Language Guide

Canonical: https://omnichannels.ai/blog/bulk-sms-comoros-guide/
Language: en
Publisher: OmniChannels.ai by BroadNet Technologies

This guide is for hotels, banks, retailers, NGOs and operations teams that want to send business SMS to mobile numbers in the Comoros: OTPs, booking confirmations, reminders and promotions. It explains who regulates what, how sender IDs work, what opt-in and opt-out evidence to keep and how French and Arabic text affect message length. It is a practical overview, not legal advice; confirm requirements with Comorian counsel and the operators before launch.

## What rules apply to bulk SMS in the Comoros?

Two layers apply: ANRTIC with operator policy, and the consent and opt-out standards recorded in our regulation data. We did not find a standalone bulk SMS statute or a data protection law we could verify from a primary source, so we leave those out rather than guess.

| Layer | What it covers | Where to check |
|---|---|---|
| ANRTIC and the operators (Comores Telecom, Yas) | Telecom regulation, sender ID set-up, routes, filtering | [anrtic.km](https://www.anrtic.km/) |
| Our regulation data for the Comoros | Verifiable opt-in, opt-out keyword, evidence retention | Confirmed with you at onboarding |

Our regulation data lists ANRTIC as the regulator and records that sender ID requirements are set by the operators. The rule that matters on launch day is the one your operator route enforces. The market is small, and delivery behaviour can differ between the two networks, which is another reason to test early.

## What consent do you need before sending marketing SMS?

Treat documented opt-in as required. Our regulation data says opt-in must be verifiable, with a logged source, timestamp, IP address and channel, and that the evidence must be kept for the life of the marketing relationship. Opt-out is covered below.

A safe routine follows:

1. **Capture consent with a record:** the exact wording shown, the date and time, the channel, the IP address where relevant and the number.
2. **Say who is sending and why** at sign-up, for example "Offres de Hotel Moroni par SMS".
3. **Honour opt-outs immediately** and keep one suppression list across campaigns and channels.
4. **Keep the evidence** for as long as you market to that person.
5. **Do not buy lists.** Purchased numbers have no consent trail.

For wording, our [opt-in consent generator](/tools/opt-in-consent-generator/) drafts a consent text and the guide to [opt-in consent across channels](/blog/opt-in-consent-multichannel-campaigns/) shows how to record it.

## How do opt-outs work?

Every marketing message must carry an opt-out keyword. Our regulation data gives STOP and its Arabic equivalent, says opt-outs are honoured network-wide and states that they are audited by the regulator. Put the keyword in the message in the language of the message, for example "STOP" in French copy and the Arabic word in Arabic copy, and apply the request to every campaign, not only the one that triggered it.

## How do sender IDs work in the Comoros?

Business SMS to the Comoros uses an alphanumeric sender ID of up to 11 characters in Latin or Arabic script, which shows your brand instead of a number. Requirements are set by the operators and confirmed at onboarding. Our published lead time is 10 to 14 business days. Treat it as typical, not guaranteed.

| Step | What to do |
|---|---|
| 1. Classify | Decide which traffic is transactional (OTP, bookings) and which is promotional |
| 2. Choose names | Use your registered business or brand name; avoid names that imitate banks, operators or public bodies |
| 3. Prepare documents | Business registration papers and an authorisation letter naming the sender IDs and your provider |
| 4. Submit | Your provider files with the operators; track each approval |
| 5. Test | Send an OTP and a promotion to Comores Telecom and Yas handsets |

Our [sender ID letter generator](/tools/sender-id-letter-generator/) drafts the authorisation letter, and the [sender ID checker](/tools/sender-id-checker/) or the [Comoros sender ID page](/sender-id/comoros/) show the current position. If you want us to prepare and file the registration with you, see [registrations](/services/registrations/); approval decisions stay with the operators and regulators. For formats, read our guide to [sender ID types](/blog/sms-sender-id-types-explained/).

## Which operators carry SMS in the Comoros?

Two mobile networks appear in our coverage data, both on aggregator routes:

| Operator | MCC-MNC | Route |
|---|---|---|
| Comores Telecom | 654-01 | Aggregator |
| Yas Comoros | 654-02 | Aggregator |

Operator branding has changed in recent years, and you may see Comores Telecom referred to as Huri. Aggregator routes mean delivery reports and sender ID display can differ from a direct route, so test both networks and read results per operator. Our guide to [improving SMS delivery rates](/blog/sms-not-delivered-improve-delivery-rate/) shows how to diagnose a weak network.

## How should you separate OTP and promotional traffic?

Keep OTPs, booking confirmations and other service messages on a transactional sender ID and route, and promotions on their own. A promotion inside an OTP puts your login codes at risk if the promotional route is filtered.

| Traffic | Example | Practice |
|---|---|---|
| Transactional | OTP, payment confirmation, booking | No offer inside; own sender ID; any hour |
| Promotional | Seasonal offer, new service, loyalty | Consented numbers only; opt-out keyword in the message; daytime |
| Mixed | "Reservation confirmee. Obtenez -10% au retour" | Avoid; the offer makes it promotional |

For OTP content and security, read our [OTP authentication messages guide](/blog/otp-authentication-messages-guide/).

## How do French, Arabic and Comorian text affect SMS length?

French without circumflexes fits the default GSM 7-bit alphabet at 160 characters (153 per part), while Arabic is always Unicode at 70 characters (67 per part). The GSM alphabet includes é, è, à, ù and ç but not ê, â, î, ô, û or ï, so one such letter switches a French message to Unicode. Comorian (Shikomori) is commonly written in Latin letters, which is a plain GSM-7 matter unless it uses characters outside the alphabet; confirm spelling conventions with a native writer. See [GSM-7](/glossary/gsm-7/), [UCS-2](/glossary/ucs-2/) and [concatenated SMS](/glossary/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:

| Message | Encoding | Characters | Parts |
|---|---|---|---|
| `Hotel Moroni: Votre code est 482913. Ne le partagez avec personne.` | GSM-7 | 66 | 1 |
| `Hotel Moroni: Offre -20% sur les sejours ce week-end. Details: moroni.example/s. Stop: moroni.example/stop` | GSM-7 | 106 | 1 |
| `Hôtel Moroni : offre -20% sur les séjours ce week-end. Détails : moroni.example/s. STOP : moroni.example/stop` | Unicode | 109 | 2 |
| `Hotel Moroni: رمزك 482913. لا تشاركه مع أحد.` | Unicode | 44 | 1 |
| `Hotel Moroni: عرض خاص ٢٠٪ على الإقامة هذا الأسبوع. إيقاف: moroni.example/stop` | Unicode | 77 | 2 |

The third row shows the cost of the circumflex in "Hôtel": the same offer moves from one part to two. Check final copy in the [SMS character counter](/tools/sms-character-counter/). For Arabic specifics see [SMS character limits and Unicode](/blog/sms-character-limits-unicode-arabic/). Have Arabic and Comorian copy reviewed by a native speaker.

## When should you send?

We have not found a regulator-published time-of-day window for promotional SMS in the Comoros, and our regulation data records none. Agree sending hours with your provider and the operators, send promotions in local daytime (East Africa Time, UTC+3) and avoid late evenings and prayer times where relevant. OTPs and alerts can go at any hour. The [send time planner](/tools/send-time-planner/) helps schedule campaigns, and our [SMS marketing rules by country](/blog/sms-marketing-rules-by-country/) article compares markets.

## What is a launch checklist for the Comoros?

1. Split traffic into transactional and promotional and plan one sender ID for each.
2. File sender ID registration through your provider, allowing 10 to 14 business days.
3. Store each opt-in with source, timestamp, IP, channel and number.
4. Add an opt-out keyword to every marketing message and feed one suppression list.
5. Decide per audience: French without circumflexes, or Arabic as Unicode.
6. Test on Comores Telecom and Yas handsets and compare delivery time.
7. Schedule promotions for local daytime; keep OTPs on their own route.
8. Review per-operator delivery reports after the first send.

WhatsApp can complement SMS for customers who opted in and use the app, and SMS stays the fallback for OTPs and for people without data; see [how to send WhatsApp marketing messages](/blog/how-to-send-whatsapp-marketing-messages/).

## A worked example: a Moroni hotel

"Hotel Moroni" (synthetic) wants booking confirmations, a guest code for its portal and a seasonal offer to past guests.

- It registers a transactional and a promotional sender ID, in Latin script, and tests both on the two networks.
- It collects consent at booking and check-in, logging source, timestamp, channel and number.
- Confirmations and codes use accent-safe French at 160 characters or fewer; Arabic-speaking guests get an Arabic version as Unicode.
- The offer carries STOP and is sent in daytime after checking the suppression list.
- Opt-outs feed one suppression list shared with WhatsApp and email.

## What are the common mistakes?

- **No consent evidence.** Our regulation data expects source, timestamp, IP and channel.
- **Missing opt-out keyword.** Marketing messages must carry one.
- **Assuming a direct route.** Both networks are aggregator routes in our data; test delivery.
- **One circumflex in every message.** It turns a 160-character message into a 70-character one.
- **Mixing OTP and promotion on one sender ID.**
- **Treating lead times as promises.** Plan buffer beyond 10 to 14 business days.

## How OmniChannels.ai helps

OmniChannels.ai is powered by BroadNet. For the Comoros, our coverage data shows aggregator routes to Comores Telecom and Yas Comoros. We prepare and file sender ID registration with you, support French, Arabic and English content, and give you per-operator delivery reports, with SMPP 3.4 for high volume. For indicative list prices, see the [Comoros SMS pricing page](/sms-pricing/comoros/), then [book a demo](/demo/). Small team? Our [SMS marketing guide for small businesses](/blog/sms-marketing-small-business-guide/) covers the basics.