---
title: A2P SMS Messaging · US Matrix
description: One-time passwords, alerts and campaigns over direct routes, through API, SMPP or web portal.
image: https://usmatrix.com/hubfs/usmatrix-new/hd-earth.jpg
---

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[Home](https://usmatrix.com/?hsLang=en) / Communications

# **SMS** to 190+ countries

One-time passwords, alerts and campaigns over direct routes, through API, SMPP or web portal.

[Access the portal](https://usmatrix.com/portal?hsLang=en)[Talk to an expert](https://usmatrix.com/contact?hsLang=en)

**190*+***Countries

**815*M***Messages per year

**100*%***Mobile reach

Overview

Messages that arrive on time, in any language, on **every mobile phone**.

Retail, enterprise and wholesale customers use our platform for OTP, transactional and marketing traffic.

Dedicated routes, route optimization and active fraud monitoring keep delivery high and costs predictable.

## Key capabilities

01

### Routes for OTP and marketing

Dedicated routes for one-time passwords and alerts, kept separate from promotional traffic.

02

### Smart routing

Our algorithms choose the best route for each destination based on delivery and cost.

03

### Every language

Unicode support for every alphabet, so messages read correctly in Arabic, Thai or Portuguese.

04

### Real-time reports

Track delivery as it happens and adjust campaigns while they run.

Who uses it

OTP and two-factor codes

Transaction alerts

Appointment reminders

Marketing campaigns

Two-way conversations

Technical details

| Integration | REST API, SMPP, web portal |
| --- | --- |
| Traffic | A2P: OTP, transactional, marketing, two-way |
| Encoding | GSM-7 and Unicode |
| Coverage | 190+ countries |
| Monitoring | 24x7 NOC, active fraud monitoring |

Compare

## Voice, SMS and DIDs side by side

|  | [Voice](https://usmatrix.com/voice?hsLang=en) | [SMS](https://usmatrix.com/sms?hsLang=en) | [DIDs](https://usmatrix.com/did?hsLang=en) |
| --- | --- | --- | --- |
| What it is | International voice termination over direct and premium routes | A2P messaging for one-time passwords, alerts and campaigns | Local, mobile and toll-free phone numbers |
| Coverage | Strategic and hard-to-reach international destinations | 190+ countries | 150+ countries |
| How you connect | SIP and TDM interconnection | REST API, SMPP or web portal | Self-service portal or account team |
| Best for | Carriers, ISPs, calling-card and prepaid providers, contact centers | OTP and two-factor codes, transaction alerts, reminders, campaigns | Contact centers, cloud PBX and UCaaS, companies entering new markets |
| Protection | Real-time fraud limits and blocking during the call | Dedicated OTP routes and active fraud monitoring | Numbers only from licensed providers |
| Support | 24x7 NOC | 24x7 NOC | 24x7 NOC |

FAQ

## Frequently asked questions

How many countries can I reach with US Matrix SMS?

More than 190 countries, over direct routes.

How do I send messages?

Through a REST API, SMPP or the web portal.

Are one-time passwords kept separate from marketing traffic?

Yes. OTP and alerts travel on dedicated routes, separate from promotional traffic, and smart routing picks the best route per destination based on delivery and cost.

Does it support every language?

Yes. GSM-7 and Unicode encoding cover every alphabet, so messages read correctly in Arabic, Thai or Portuguese.

How is SMS fraud handled?

Our 24x7 NOC runs active fraud monitoring, and real-time reports let you track delivery and adjust campaigns while they run.

Works well with

[![](https://usmatrix.com/hs-fs/hubfs/usmatrix-new/hd-nyc.jpg?width=1600) Communications**DIDs**Local, mobile and toll-free numbers in 150+ countries.](https://usmatrix.com/did?hsLang=en)[![](https://usmatrix.com/hs-fs/hubfs/usmatrix-new/hd-city2.jpg?width=1600) Communications**Voice**International wholesale termination with real-time fraud control.](https://usmatrix.com/voice?hsLang=en)

## Let's connect **everywhere**

Tell us what you need to connect and where. An expert will reply within one business day.

[Talk to an expert](https://usmatrix.com/contact?hsLang=en)

![US Matrix](https://usmatrix.com/hubfs/logo-horizontal-white.png)

Telecom and data center solutions, everywhere.

Communications[Voice](https://usmatrix.com/voice?hsLang=en)[SMS](https://usmatrix.com/sms?hsLang=en)[DIDs](https://usmatrix.com/did?hsLang=en)

Mobility[eSIM](https://usmatrix.com/esim?hsLang=en)[US Matrix Mobile](https://usmatrix.com/mobile?hsLang=en)[Roaming Hub](https://usmatrix.com/roaming-hub?hsLang=en)

Data Center[Colocation](https://usmatrix.com/colocation?hsLang=en)[Dedicated Hosting](https://usmatrix.com/hosting?hsLang=en)

Company[Company](https://usmatrix.com/about?hsLang=en)[Insights](https://usmatrix.com/blog?hsLang=en)[Contact](https://usmatrix.com/contact?hsLang=en)[LinkedIn](https://www.linkedin.com/company/usmatrix/)

© 2026 US Matrix Telecommunications, Inc. · 591 E Sample Rd., Pompano Beach, FL 33064, USA[Privacy policy](https://usmatrix.com/privacy?hsLang=en)

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