BroadNet
cambodia
Cambodia · TRC-KH

A2P SMS regulations in Cambodia.
Compliance with TRC-KH rules and sender-ID registration.

A2P SMS to Cambodia is regulated by the Telecommunications Regulator of Cambodia (TRC-KH). TRC-KH + operator sender ID registration. Khmer (UCS-2) and English supported, with approval typically taking 7-14 business days. Quiet hours 21:00-08:00 promotional. BroadNet carries this traffic over direct operator connections.

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By the numbers
TRC-KH
Telecommunications Regulator of Cambodia regulates A2P messaging
7-14 days
Typical sender-ID approval time
99.99%
Platform uptime SLA
Carrier-grade infrastructure, operating since 2003.

Who regulates A2P SMS in Cambodia?

Application-to-person messaging to Cambodia is overseen by the Telecommunications Regulator of Cambodia (TRC-KH), which licenses the operators that terminate A2P traffic and sets the conditions those routes run under. BroadNet delivers into Cambodia over direct operator connections — Cellcard, Smart Axiata and Metfone — rather than through resold or grey routes, so the sender ID, the delivery receipt and the audit trail all come back from the licensed path.

  • Telecoms regulator: Telecommunications Regulator of Cambodia (TRC-KH).
  • Direct operator routes: Cellcard, Smart Axiata and Metfone.
  • Sender-ID registration: TRC-KH + operator sender ID registration. Khmer (UCS-2) and English supported.
  • Typical lead time: 7-14 business days.

Sender ID registration in Cambodia

TRC-KH + operator sender ID registration. Khmer (UCS-2) and English supported. Registration is not a formality — an unregistered or mismatched sender ID is the most common reason otherwise-valid traffic is filtered, and the failure is usually silent rather than a hard rejection. Plan 7-14 business days for approval and register before you need the route, not during a launch.

  • Lead time: 7-14 business days.
  • BroadNet files sender IDs on your behalf through the TRC-KH-licensed operators.
  • Khmer (UCS-2): Khmer script supported.
  • Time to production: Live in 8–19 business days from test-access request to production (set by the sender-ID lead time).

Consent, content and timing rules

TRC allows advertising SMS only between 08:00 and 21:00. Government framework on PII handling. Timing is enforced rather than advisory: a promotional send that lands outside the permitted window is a compliance event regardless of how the list was built. Transactional messages — one-time passcodes, delivery and account alerts — are treated differently from marketing, but the distinction is decided by the content of the message rather than by how the campaign is labelled.

  • TRC-KH sender ID: Sender IDs registered via operator route.
  • Khmer (UCS-2): Khmer script supported.
  • Government framework: PII handling per government rules.
  • Advertising SMS only 08:00-21:00 (TRC, May 2026).

What this means for your integration

Practically, three things decide whether traffic to Cambodia performs: a registered sender ID on a TRC-KH-licensed route, a consent and opt-out record you can evidence, and message content that matches the category it was registered under. BroadNet's compliance engine checks each submission against the Cambodia ruleset before it reaches the operator, so a non-compliant send is rejected back to you rather than filtered silently downstream — which is the difference between a fixable error and traffic that quietly disappears.

  • Every message returns a delivery receipt (DLR); BroadNet does not publish per-country delivery percentages.
  • Indicative list pricing: USD 0.03 – 0.055 per message.
  • Addressable mobile base: 23M subscribers.
  • Data handling follows the applicable Cambodia privacy regime.
DiagramSender ID registration, step by step
  1. Submit your KYC packTrade licence, authorisation letter and sample messages
  2. BroadNet files the applicationWith the operators or the regulator, as the market requires
  3. Review and approvalTypical lead time7-14 business days
  4. Send under your brandYour approved sender ID on every message
Cambodia
CambodiaOther BroadNet marketsBroadNet HQ, Dubai
Technical facts

Technical facts for Cambodia

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

Technical facts for Cambodia
Mobile country code (MCC)456
Dialling code+855
Operators (MCC-MNC)
  • Cellcard · 456-01
  • Smart Axiata · 456-04
  • Metfone · 456-08
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
RegulatorTRC-KH (Telecommunications Regulator of Cambodia)
Sender-ID rulesTRC-KH + operator sender ID registration. Khmer (UCS-2) and English supported.
Sender-ID lead time7-14 business days

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Cambodia rules: promotional vs. transactional SMS

CapabilityPromotional / marketingTransactional / service (OTP, alerts)
Registered sender ID required
Prior consent required—
Opt-out instruction required—
Restricted to a permitted sending window—
Delivery receipts available
FAQ

Common questions

Who regulates SMS in Cambodia?
the Telecommunications Regulator of Cambodia (TRC-KH). It licenses the operators that terminate A2P traffic and sets the conditions those routes operate under. BroadNet delivers into Cambodia over direct connections to Cellcard, Smart Axiata and Metfone.
Do I need to register a sender ID for Cambodia?
Yes. TRC-KH + operator sender ID registration. Khmer (UCS-2) and English supported. Allow 7-14 business days for approval. An unregistered sender ID is the most common cause of silently filtered traffic, so register before the campaign rather than during it.
How long does it take to start sending to Cambodia?
Live in 8–19 business days from test-access request to production (set by the sender-ID lead time). The sender-ID registration is usually the long pole at 7-14 business days; the technical integration itself is the same REST or SMPP interface you would use for any other market.
Is there a permitted window for promotional SMS in Cambodia?
Yes. TRC allows advertising SMS only between 8:00 AM and 9:00 PM. Transactional messages such as one-time passcodes are treated separately from marketing, but the category is judged on the content of the message, not on how the campaign was labelled.
What does A2P SMS cost in Cambodia?
Indicative list pricing is USD 0.03 – 0.055 per message, with volume tiers below that. The rate depends on the operator, the message category and committed volume — see the Cambodia coverage page for the per-operator breakdown.
What delivery rate should I expect in Cambodia?
BroadNet does not publish per-country delivery percentages. Every message on these direct operator routes returns a delivery receipt (DLR), so you can measure delivery on your own traffic, and the platform carries a 99.99% uptime SLA. Grey routes deliver until they do not, and give you no receipt when they fail.

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