---
title: "Sender ID registration in Switzerland"
description: "SMS sender ID rules and registration in Switzerland: OFCOM-CH rules, no pre-registration, opt-out wording, alphanumeric formats and rejection reasons."
canonical: "https://omnichannels.ai/sender-id/switzerland/"
language: "en"
updated: "2026-09-29"
publisher: "BroadNet Technologies"
brand: "OmniChannels.ai"
---

# Sender ID registration in Switzerland

Canonical: https://omnichannels.ai/sender-id/switzerland/
Language: en
Publisher: OmniChannels.ai by BroadNet Technologies

**Short answer:** In Switzerland, sender ID requirements are set by the mobile operators (Swisscom and Sunrise), with OFCOM-CH as regulator. There is no pre-registration lead time. Alphanumeric IDs of up to 11 characters are accepted. OmniChannels.ai handles the filing across 3 operators and confirms current rules during onboarding.

## Sender ID rules at a glance

| Item | Details |
|---|---|
| Regulator | Federal Office of Communications (OFCOM-CH) |
| Registration required | Set by the operators (BroadNet confirms the current requirements during onboarding) |
| Typical lead time | No pre-registration |
| Alphanumeric sender ID | Yes (Latin letters, up to 11 characters) |
| Numeric long code / short code | Supported alongside alphanumeric sender IDs |
| Accepted formats | Alphanumeric, up to 11 chars (numeric long-code also supported) |
| Promotional sending hours | No regulator-published window found (Agree sending hours with the operator and schedule promotional sends for the recipient's local daytime; transactional traffic runs 24/7.) |
| Opt-in | GDPR-compliant opt-in required. Double opt-in is the operator-preferred standard for marketing. |
| Opt-out | STOP keyword honoured network-wide. Opt-out is one-step and irreversible until the recipient re-consents. |
| Operators we reach | Swisscom, Sunrise and Salt |
| Last reviewed | 29 September 2026 (Sources: OFCOM) |

Official sources: [OFCOM](https://www.bakom.admin.ch/)

## How to register your sender ID in Switzerland through OmniChannels.ai

1. **Choose and check your sender ID:** Pick a sender ID that matches your brand: Latin letters, up to 11 characters. Test it in the free sender ID checker first.
2. **Send us your company details and use case:** Tell us the legal entity, brand and what each sender ID will send (OTP, transactional or promotional). We confirm which supporting documents are currently needed.
3. **We file with the operators:** We prepare and submit the application. Current process in Switzerland: BroadNet confirms the current requirements during onboarding.
4. **Approval and test messages:** There is no pre-registration step. Before launch we send test messages on Swisscom, Sunrise and Salt and check the sender ID displays correctly.
5. **Go live:** Send through the REST API, SMPP or campaigns. Schedule promotional sends for the recipient's local daytime. Opt-out handling is applied to every promotional message.

## Common reasons a sender ID is rejected in Switzerland

- Too long: sender IDs here are up to 11 characters.
- Generic words instead of a brand, such as INFO, SMS, OTP, ALERT: regulators usually refuse them.
- Arabic, accented or other non-Latin letters: this market lists Latin letters only.
- Spaces or symbols such as _ & ! ( ): many operators strip or refuse them; use a hyphen or nothing.

## Sender ID in Switzerland: questions

### Do I need to register a sender ID in Switzerland?

Yes, in practice: the mobile operators in Switzerland set the sender ID requirements rather than a central registry. BroadNet confirms the current requirements during onboarding.

### How long does sender ID registration take in Switzerland?

There is no pre-registration step in Switzerland, so there is no registration lead time. We confirm the current timeline for your sender ID during onboarding.

### Can I use an alphanumeric sender ID in Switzerland?

Yes. Alphanumeric sender IDs are accepted: Latin letters, up to 11 characters. Accepted formats: Alphanumeric, up to 11 chars (numeric long-code also supported).

### When can I send promotional SMS in Switzerland?

There is no regulator-published window that we know of in Switzerland. Agree sending hours with the operator and schedule promotional sends for the recipient's local daytime; transactional traffic runs 24/7.

### What consent and opt-out rules apply in Switzerland?

GDPR-compliant opt-in required. Double opt-in is the operator-preferred standard for marketing. STOP keyword honoured network-wide. Opt-out is one-step and irreversible until the recipient re-consents.

### Who regulates SMS sender IDs in Switzerland?

Federal Office of Communications (OFCOM-CH), together with the mobile operators (Swisscom, Sunrise and Salt). Official sources: OFCOM.

### Can I send from a numeric number or short code in Switzerland?

Yes. Supported alongside alphanumeric sender IDs. Alphanumeric, up to 11 chars (numeric long-code also supported).

## Related

- [Sender ID checker for Switzerland](https://omnichannels.ai/tools/sender-id-checker/?country=CH)
- [SMS pricing in Switzerland](https://omnichannels.ai/sms-pricing/switzerland/)
- [Register your sender ID](https://omnichannels.ai/contact/)

Last reviewed 2026-09-29. Rules are confirmed during onboarding.