Start a conversation

Let customers respond to your messages, and use personal content in campaigns. You can even automate the process!

Build trust on a local level

Use a virtual long number specific to each country, to build customer trust from the phone’s first buzz!

Get up and running fast

Minimal paperwork. No waiting time. No drama. Get your number fast and cheap, and get started immediately!

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Flexible. Convenient. Recognizable. 

Long numbers are cost-effective, easy to use, and can be set up quickly - sometimes even the same day! They also make your business appear local, even if you're actually on the other side of the world. 

+1 470 300 8394

Hi Sara!

This is Dr. Thompson's office. Remember your appointment tomorrow, October 3rd, at 11am.

If you can't make it, give us a call at +1 470 300 8394 to reschedule.

See you soon!

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Start two-way conversations, build deeper connections

Be available anytime, build local recognition, and make it easy for customers to text and call you back. Use a specific number for every country or even an area code in the U.S. to become a familiar face in local markets.

Start building with confidence with the Sinch Numbers API

Get unique numbers to represent your business, and protect people’s sensitive information with number masking. Sign up and learn how to get a virtual number in our portal. 

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Dedicated numbers

Get unique numbers to represent your business. Returning customers will quickly drop their suspicions as they know you’re the sender.

Number masking

Protect people’s sensitive information with an anonymous number - and help prevent fraud and revenue loss. Win-win!

International messaging

Don’t worry about national borders. Stay available to anyone with reception, whatever country they’re in.

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Virtual local long numbers

Use a number specific for every country and even area specific codes in the U.S. to become a familiar face in local markets all around the world.

Free customer messages

Use virtual long numbers to receive messages from your customers without paying a single penny - it's completely free of charge.

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Got questions? We've got answers!

  • What is the difference between virtual long numbers and short codes?

    The main difference between these two numbers is how they’re intended to be used. Long numbers were designed to support person-to-person (P2P) messages with a relatively low throughput of messages. Short codes (SC) were designed to support application-to-person (A2P) bulk, higher throughput messaging – this a preapproved route, which eliminates filtering. 
    Over time, demand for and use of messaging channels has changed. A2P messages are being sent on long codes, and some short code-based campaigns support P2P-like experiences with the application only hosting the consent and communication experience. The carriers have stepped in to get better control of the traffic on their networks in an effort to increase security and deliverability.

  • Do I need a virtual long number or short code?

    For most countries, you will only need a virtual long number or a short code if you wish to engage in two-way interactions with your customers. If you do not wish to engage in a two-way dialogue, then in most countries you can simply set the Sender ID (Originator) to something alphanumeric using your brand name, e.g. ‘Sinch’. 
    In some countries, however, like the U.S. and Canada, a short code or toll-free number is required regardless of whether you want to engage in a two-way dialogue, as alphanumeric Sender IDs are not supported. For more information about which countries require a short code or virtual long number, please contact your Account Manager. 

  • What is a 10DLC?

    10DLC is a channel sanctioned by carriers for transporting A2P messaging using dedicated 10-digit telephone numbers allocated within the North American Numbering Plan (NANP). 

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Short Codes

In a messaging campaign your number represents your brand, so why not make it recognizable? Short and sweet!


Set up quickly, build trust, and get high delivery rates? You can do it all with 10DLC!


Send and receive text messages at scale through a single connection.

Toll-Free Numbers

A toll-free SMS number inspires trust & confidence on the receiving end. Sinch toll-free texting makes it easy to engage with more customers!

Number Masking

Masking numbers to anonymize voice calls can protect you and your customers while keeping personal numbers safe.
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Talk to our experts

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