Cellco Watermark
Direct Carrier Connections

Scale Your Global
A2P Communications

Connect with billions of users instantly. Deliver SMS, automated Voice notifications, OTP authentications, and WhatsApp messages globally via our low-latency, highly secure API infrastructure.

99.99% API Uptime
< 2.5s Global Delivery
190+ Countries Covered
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OMNICHANNEL INFRASTRUCTURE

Connecting the world all in one just for you

Click any channel node on the orbital hub to view live operator routing telemetry, delivery benchmarks, and omnichannel enterprise solutions.

Cellco Core

WhatsApp Business API

Verified Business Messaging & Automated Customer Care

100% End-to-End Encrypted

2B+

Active Global Users

Official

Meta Tech Partner

AI Bot

Chatbot Automation

Automate notifications, shipping updates, and customer support chats.
Official WhatsApp Green Tick verification badge application support.
Rich media templates with dynamic CTA buttons and catalog embeds.
WhatsApp Session Telemetry Meta Tech Verified

Our Services

Six products, one platform, built to work together.

Enterprise-grade messaging infrastructure engineered for global reach, instant delivery, and maximum reliability.

A2P SMS

High-throughput global SMS delivery with direct carrier routes

Reach billions instantly. Priority routing, real-time delivery receipts, and unicode support across 190+ countries.

Direct RoutesReal-time DLR190+ Countries
Cellco SMS now
✓✓
TranzAlert 2s
✓✓
PromoBlast 5s
99.9%Uptime
<2.5sDelivery
OTP SMS

98% read rate in under 3 seconds with global fraud filtering

Secure authentication at every touchpoint with ultra-low-latency one-time passwords.

Priority QueueAuto-ExpiryFraud Shield
Verification Code
8 4 7 2 9 1
Expires in 29s
RCS Messaging

Rich cards, carousels & verified brand messages

Upgrade SMS with interactive buttons, high-res media, and verified sender identity to maximise engagement.

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Verified Brand
Voice OTP

Neural TTS voice fallback for SMS-unreachable users

Auto voice calls with multi-language neural speech ensure zero user is left behind when SMS encounters delays.

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WhatsApp API

Official WhatsApp Business API for rich, verified conversations

Send media-rich messages, order updates, and intelligent chatbot flows through the world's most-used messaging platform.

Official APIRich MediaChatbots
Telegram API

Mass broadcasts & bots via secure encrypted Telegram channels

Automate alerts, engage communities at scale, and deploy intelligent bots using Telegram's fast, secure Bot API.


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The Only eSIM You'll Ever Need

No more swapping plastic SIM cards or buying new plans for every trip. Cellco installs once and lives on your phone permanently, ready to connect in 165+ countries the moment you touch down.

Download once.
Never again.

Install Cellco in 3 minutes. It stays on your phone permanently. No reinstalling, no rebuying, no starting over.

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3 Days Global Unlimited

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Travelers using Cellco eSIM

Seamless Global Coverage

Travel the world with zero connectivity stress.

165+ countries, one flat rate

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One quick activation, and your eSIM stays active on your phone permanently. Just top up whenever you travel.

Only pay when you travel

No subscriptions or standby fees. Simply pick your destination plan, use it, and extend in one tap from the app.


RCS Business Messaging

Engage Customers with Verified Rich Messaging

Enhance standard SMS by adding your company branding, verified logo, high-resolution media, and interactive response buttons. Click the features below to preview them on the device.

800M+ Active Users
7x Click-Through Rate
98% Open Rate
3.8B Compatible Devices

Verified Sender Profile

Show your brand name and verification badge to establish instant trust and protect against spam.

Rich Media Carousels

Deliver high-resolution catalog images, products, videos, and PDFs directly in the inbox.

Interactive Action Buttons

Add clear click-to-action buttons for websites, phone calls, maps, or instant custom replies.

Delivery & Read Receipts

Track exact message delivery and customer read status to measure campaign engagement.

Smart SMS Fallback

Auto-falls back to standard SMS if the recipient's device does not support RCS, ensuring 100% reach.

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Perfect for every industry

🛍️
Retail & E-Commerce
Order status, catalog browsing, abandoned cart recovery
🏦
Banking & Finance
Secure transaction alerts, security keys, KYC verification
✈️
Travel & Transport
Boarding passes, booking alerts, real-time schedule updates
Features
SMS
RCS
Branded Layout
Verified Logo
Receipts
Action Buttons
Transparent Pricing

A2P Volume Cost Estimator

Calculate your estimated monthly spend. Choose your target destination, messaging channel, and project your scale.

Rates are shown in EUR (€) and are highly dynamic. Prices are subject to change day by day based on carrier updates.

100,000
1K 250K 500K 750K 1M

Estimated Cost

Calculated at volume tier rates

2,800.00 /mo
Selected Channel: A2P SMS
Rate per Message: €0.0280 EUR
Monthly Volume: 100,000 messages
Get API Key & Start Testing


Ready to scale your A2P communications?

Sign up today and get free test SMS credits. No credit card required, instant setup and active routes.

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