SMSCarrier provides a highly reliable SMS gateway service enabling aggregators and businesses to send high volumes of SMS messages to mobiles all around the world.  We specialise in providing Mobile Terminated (MT) outbound bulk SMS messaging services with coverage to approximately 900 mobile network operators worldwide. We've been providing wholesale SMS gateway services to large and small organisations since 1999.

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Enterprise/business customers only

HSL Mobile® operates the SMSCarrier service and also operates other messaging services. If you require inbound SMS services / MO SMS (i.e. Virtual Mobile Numbers or Virtual SIM Hosting), SMS-based solutions or wish to use other APIs such as HTTP, SMTP or Web Service (SOAP/XML) then please visit
Sending SMS through an SMS gateway using SMPP (Short Message Peer-to-Peer Protocol) allows your application, whether it's sending SMS text messages to your customers, notifying staff of important information or updating a remote device, to quickly send a message and know when it's been delivered. Secure SMPP sessions are support using TLS.