Trusted by the world's leading companies


We have the largest owned and operated facilities-based footprint covering 95% of the U.S.


phone numbers powered by our network


more local number coverage compared to the next largest provider


minutes of use on our network annually

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Communication platform as a service provider

Great can always be better — get unmatched quality

Ready to expand your customer base and grow revenue? Use our APIs to build new functionality into your already-awesome solution. We make it easy to set up your phone numbers, enhance voice services, add enhanced 911 calling, and create an omnichannel experience with mobility and messaging solutions.

Contact center as a service provider

Scale that gets them talking

Contact center under pressure? We know. But don't worry; Sinch can help! We can support your need to quickly add toll-free and long-distance voice services — reliably and affordably.

Cloud collaboration platform provider

Connect your customers with confidence

Your customers trust you to always be available. Lean on us to get it done! Attract more users with new features powered by our flexible APIs, expansive number inventory, and white-label mobility clients. Plus, our super network will help you scale to meet high-volume needs.

Managed service provider

Hold on to happy customers while adding new ones

You've built strong customer ties — we'll be the partner who helps keep your brand front and center. Our super network has the largest footprint, extensive coverage, and direct connections to let your services shine with the highest quality, reliability, and security.

Over-the-top provider

Keep it simple: one provider, countless solutions

Imagine one API automation for all your voice, messaging, and emergency service communication needs. Well, you've found it!

Value-added reseller

Raise the bar on existing offers or add new ones in a snap

Customers are looking for new, simple-to-use, and time-saving services — you need to deliver to stay ahead of your competition. We make it easy to launch; and elevate your branded voice service, so increasing revenue is a breeze!

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Phone numbers

Turbo-charge your growth with a customer-obsessed partner

It only takes a minute to build or expand a local presence for your business in any market. Easily access our vast phone number inventory and order millions or just a few on the largest, on-net phone number footprint available. And porting is always stress-free! 


Connect your customers to a complete voice solution and next-level experience

A single connection for scale, reach, and unrivaled quality. Our local, long-distance, international, and toll-free calling services offer flexible solutions for all business and customer needs. Coverage extends across the United States, including rural communities.

illustration hand with mobile phone and icons

Get your message across

Expand your messaging capabilities and improve the experience with channels customers know and love. Sinch offers the richest choice of channels, and they're all available instantly.

Mobility clients and SDKs

Build an omnichannel mobility solution customers will love - it's easy!

Create a fully branded and customized mobility solution with 300+ options in just 24 hours with no coding required! Our cloud softphone platform and SDKs offer all the functionality needed to integrate your solution with other applications and take it to the next level.

illustration voice channels


End-to-end peace of mind

We are ISO 27001 certified and compliant across multiple data privacy regulations, including HIPAA. Our next-generation 911 service is ISO9001/TL9000 compliant. We take security seriously and have sophisticated measures in place to ensure your traffic is protected.

Customer support

Exceptional service and support tools

Rely on our experts to help you. Our powerful APIs and easy-to-use portal supports all your self-service needs, and our network operations center (NOC) team is available 24x7 to handle any issues. We're with you every step of the way — from onboarding and implementation to support.

Fraud protection

We're serious about mitigating fraud

Fraud protection like proactive blocking, reactive ANI monitoring and blocking, timebound spend thresholds, randomizer, whitelisting, and CNAM dips are just a few of the precautions we take to keep fraud at bay. We're also STIR/SHAKEN compliant to ease robocalling and help stop scam calls and spoofing.

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Phone numbers

Numbers you can use for everything — so you can focus on your business.


voice termination

Voice termination

Connect directly to the largest and highest-quality tier 1 independent network.


stir shaken


No one like robocalls. Mitigate spoofs and add call treatment for inbound.




Enhance your customer engagement with media-rich texts.



Fax platform

Send and receive secure faxes at scale with our app or API


Mobility clients

Go to market quickly with your own unified communications app.


toll free


Give customers and prospects an easy, reliable way to reach you. Yes please!



Connect callers to emergency services with fast, reliable, and accurate delivery of 911 calls.


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Let's help you get started with the best solution for your business

Sinch Cloud Connect