A2P SMS routes to Cambodia
Request A2P SMS termination to Cambodia (country code +855): direct and high quality routes for OTP, transactional and promotional traffic. We source the route and manage it; your data stays confidential.
Destination facts
- Country code
- +855
- Main mobile operators
- Cellcard, Smart, Metfone
What to include in a request
The networks, traffic type (OTP, transactional or promotional), sender ID type, monthly volume and your target price per SMS.
Questions about Cambodia
Which SMS routes can I get to Cambodia?
Direct and high quality A2P routes to Cellcard, Smart, Metfone, for OTP, transactional and promotional traffic, with alphanumeric or numeric sender ID.
What should I send to get a rate for Cambodia?
The networks, traffic type (OTP, transactional or promotional), sender ID type, monthly volume and your target price per SMS.
Guides about Cambodia
A2P SMS
RCS vs SMS for Business Messaging
RCS vs SMS for business: features, reach on Android and iPhone as of 2026, pricing models, MMS comparison and when to keep SMS as fallback.
Fraud and security
Grey Route SMS: What It Is and the Risks for Senders
Grey route SMS explained: what makes an SMS route grey, the risks for A2P senders (blocking, lost sender ID, fake DLRs) and how to spot one.
A2P SMS
Direct SMS Routes: What They Are and How to Verify
What a direct SMS route is, why it delivers better than indirect or grey routes, when OTP traffic needs one and how to verify a supplier's direct claim.
A2P SMS
WhatsApp vs SMS for OTP and Alerts: Cost, Reach
WhatsApp vs SMS for OTP codes and alerts: reach, Meta per-message pricing as of 2026, security, and how to combine both channels by country.
Fraud and security
VoIP Security Best Practices for SIP Trunks
How to secure SIP trunks and VoIP platforms: IP authentication, firewall rules, strong credentials, TLS and SRTP, call limits and fraud alerts.
A2P SMS
Concatenated SMS: How Long Messages Are Split
How concatenated SMS works: long messages split into 153 or 67 character segments, UDH and SMPP options, maximum length, billing and delivery reports.
Need a route?
Send the destination and your target rate. We reply with what we can deliver.