# A2P SMS, OTP, and sender ID rules in Vietnam

> BroadNet delivers A2P SMS and OTP in Vietnam over direct connections to Viettel, Vinaphone, and Mobifone, with AIS sender ID registration in 7-14 business days.

- Canonical URL: https://www.broadnet.me/coverage/vietnam
- Language: en
- Last updated: 2026-10-21
- Publisher: BroadNet (https://www.broadnet.me)

Direct termination into Viettel, Vinaphone, and Mobifone with government-aligned sender ID registration handled in-house.

## Key facts

- Regulator: AIS (Authority of Information Security)
- Dialling code: +84
- MCC: 452
- Mobile subscribers: 127M
- Sender-ID lead time: 7-14 business days
- Time to launch: Live in 8–19 business days from test-access request to production (set by the sender-ID lead time)
- Typical OTP latency: 3.2 s
- Typical delivery rate, operator-direct: 99.0%
- SMS price band: USD 0.025 – 0.05 (indicative list rates, reviewed 2026-09-24)
- Billing currencies: USD, VND

## Operators

| Operator | MNC | Route | Grade | A2P rate |
|---|---|---|---|---|
| Viettel | 452-04 | Direct | A+ | USD 0.0405 |
| Vinaphone | 452-02 | Direct | A+ | USD 0.0383 |
| Mobifone | 452-01 | Direct | A | USD 0.036 |

## Technical facts for Vietnam

Network codes, message lengths and sender-ID rules in one table. Segment lengths are the GSM standard values (3GPP TS 23.038).

| Technical facts | |
|---|---|
| Mobile country code (MCC) | 452 |
| Dialling code | +84 |
| Operators (MCC-MNC) | Viettel · 452-04; Vinaphone · 452-02; Mobifone · 452-01 |
| SMS length, GSM-7 (Latin alphabet) | 160 characters in a single SMS; 153 per part when concatenated |
| SMS length, UCS-2 (Arabic, Cyrillic and other scripts) | 70 characters in a single SMS; 67 per part when concatenated |
| Regulator | AIS (Authority of Information Security) |
| Sender-ID rules | Brand names (sender IDs) for advertising SMS are issued through the national brand-name system run by the Authority of Information Security under Decree 91/2020/ND-CP; operators block names it has not issued. Vietnamese diacritics supported in UCS-2. |
| Sender-ID lead time | 7-14 business days |

## Pricing

| Band | Transactional | Promotional | Note |
|---|---|---|---|
| Pay-as-you-go | USD 0.0360 | USD 0.0439 | List rate up to 100K messages/month |
| Growth · 100K+ | USD 0.0317 | USD 0.0386 | Auto-tier discount |
| Volume · 1M+ | USD 0.0266 | USD 0.0325 | Includes quarterly route review |
| Enterprise | Custom | Custom | Direct operator pricing + signed SLA |

## Sender ID

Brand names (sender IDs) for advertising SMS are issued through the national brand-name system run by the Authority of Information Security under Decree 91/2020/ND-CP; operators block names it has not issued. Vietnamese diacritics supported in UCS-2.

Government + operator sender ID registration: 7-14 business days.

## Rules

- **Government sender ID**: Brand names issued through the national brand-name system (Decree 91/2020/ND-CP), valid for 3 years.
- **Decree 13/2023**: Personal Data Protection Decree enforced.
- **Vietnamese UCS-2**: Vietnamese diacritics supported.
- **Quiet hours 22-07**: Promotional A2P restricted overnight.

## Compliance

Cybersecurity Law 2018 + Decree 13/2023 (Personal Data Protection) enforced. Data residency rules for some categories.

## Sample A2P template

```text
Your code is 528914.
```

Vietnamese:

```text
Mã xác minh của bạn là 528914.
```

## Related

- https://www.broadnet.me/regulations/vietnam
- https://www.broadnet.me/pricing/sms/vietnam