---
title: "SMS pricing and sender ID rules in Hong Kong SAR China"
description: "Business SMS in Hong Kong SAR China from $0.0460: operator rates, volume tiers, sender ID registration and OFCA rules. Indicative list rates."
canonical: "https://omnichannels.ai/sms-pricing/hong-kong/"
language: "en"
updated: "2026-10-01"
publisher: "BroadNet Technologies"
brand: "OmniChannels.ai"
---

# SMS pricing and sender ID rules in Hong Kong SAR China

Canonical: https://omnichannels.ai/sms-pricing/hong-kong/
Language: en
Publisher: OmniChannels.ai by BroadNet Technologies

Indicative rates by operator and volume, sender ID registration, consent rules and quiet hours for business SMS to Hong Kong SAR China, from BroadNet's published rate card and regulatory research.

**Short answer:** Business SMS to Hong Kong SAR China starts at $0.0460 per message segment on BroadNet's published rate card, with lower rates from 100,000 messages a month. 4 mobile operators are covered, all on direct routes. Sender ID registration with OFCA typically takes Free-form (OFCA scheme voluntary).

## Rates by operator and volume tier

| Operator | Route | Up to 100,000 | 100,000 to 1 million | 1 to 5 million | 5 million and more |
|---|---|---|---|---|---|
| CSL Mobile | Direct | $0.0516 | $0.0454 | $0.0382 | $0.0310 |
| China Mobile HK | Direct | $0.0494 | $0.0435 | $0.0366 | $0.0296 |
| 3HK | Direct | $0.0471 | $0.0415 | $0.0348 | $0.0283 |
| SmarTone | Direct | $0.0460 | $0.0405 | $0.0340 | $0.0276 |

USD per SMS segment, before taxes and sender ID fees. Rate card reviewed 24 September 2026.

## SMS rules in Hong Kong SAR China

Summary of Office of the Communications Authority (OFCA) and operator requirements. Last reviewed 1 October 2026; rules change, so we confirm them for your traffic during onboarding.

- **Sender ID formats:** OFCA · CSL Mobile and China Mobile HK: Alphanumeric; registered IDs carry a # prefix
- **Sender ID registration:** OFCA · CSL Mobile and China Mobile HK: Voluntary — organisations apply to OFCA's SMS Sender Registration Scheme directly; unregistered IDs are delivered without the # Typical lead time: Free-form (OFCA scheme voluntary).
- **Consent (opt-in):** Verifiable opt-in required, with traffic categorised by use case at the time of registration. DLT-style template approval applies in several markets.
- **Opt-out:** STOP keyword and DND-registry suppression applied automatically. Records retained per regulator requirements.
- **Quiet hours and send window:** We have not found a regulator-published time-of-day window for promotional SMS in this market. Agree sending hours with the operator and schedule promotional sends for the recipient's local daytime; transactional traffic runs 24/7.
- **Regulator:** Office of the Communications Authority (OFCA). Country code +852.

## Sources

- List rates: BroadNet's published SMS rate card, reviewed 24 September 2026. Indicative, excluding taxes; your quote confirms the final price. Cost estimator: https://omnichannels.ai/pricing/estimator/
- [Office of the Communications Authority (OFCA)](https://www.ofca.gov.hk/)
- [OFCA SSRS](https://www.ofca.gov.hk/en/consumer_focus/guide/hot_topics/ssrs/index.html)

## SMS to Hong Kong SAR China: questions

### How much does it cost to send an SMS to Hong Kong SAR China?

Indicative list rates start at $0.0460 per SMS segment, falling to about $0.0291 at 5 million messages a month. Prices exclude taxes and sender ID fees; your quote confirms the final rate.

### Do I need to register a sender ID in Hong Kong SAR China?

No, registration is voluntary in Hong Kong. Organisations apply to OFCA's SMS Sender Registration Scheme directly; unregistered IDs are delivered without the "#". We confirm the current requirements during onboarding.

### How long does sender ID registration take in Hong Kong SAR China?

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

### When can I send promotional SMS in Hong Kong SAR China?

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

### Which mobile operators can I reach in Hong Kong SAR China?

CSL Mobile (direct route), China Mobile HK (direct route), 3HK (direct route), SmarTone (direct route).

### What opt-out wording is required in Hong Kong SAR China?

STOP keyword and DND-registry suppression applied automatically. Records retained per regulator requirements.

Data: BroadNet published rate card and regulatory research, reviewed 1 October 2026. URL: https://omnichannels.ai/sms-pricing/hong-kong/