How do I specify a Sender ID?

Read specifications on Sender IDs. A Sen...

Read specifications on Sender IDs. A Sender ID is the name or number that your customers will see at the top of the SMS.

What is a Sender ID?

A Sender ID is the name or number that y...

A Sender ID is the name or number that your recipients will see at the top of the SMS, also known as the “from” section. Sender IDs thus enable your recipients to easily determine who the sender of the message is, which makes them especially effective for branding purposes.

You can choose an alphanumeric Sender ID (combination of alphabetical and numerical characters), where you can use up to 11 characters. You can also choose to use a strictly numeric Sender ID, which allows up to 15 characters following the SMS standards.

Note that it is mandatory to register your Sender ID in some countries.

Alphanumeric:

An alphanumeric Sender ID can be used to...

An alphanumeric Sender ID can be used to present anything from a company name to the name of any government organisation – certain company names require us to register the Sender ID with the operators to prevent fraud. The receiver of the message cannot reply to a message sent with an alphanumeric Sender ID. We recommend you stick with characters in the range A-Z, a-z and 0-9, however if you do use Latin-1 characters i.e. (æ, ø and å), we will support it on connections where it is available.

See more information regarding Sender IDs

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Numeric Sender ID:

A numeric Sender ID consists of numbers ...

A numeric Sender ID consists of numbers only and can contain up to 15 digits. Recipients can reply to messages sent from GatewayAPI, if your virtual number is used as the Sender ID and you have assigned the number to one of your webhooks.

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Contact support if you require 2-way communication for your solution.

Can I choose my Sender ID freely?

Yes, with our service you can choose you...

Yes, with our service you can choose your Sender ID freely, but keep in mind that there may be restrictions in some countries where it is a requirement that Sender IDs are registered before they can be displayed. In some countries, you may also experience that your messages are rejected if the Sender ID is not registered beforehand. See which countries where there are special rules concerning Sender IDs below.

The reason why it is necessary to register Sender IDs in some countries is that it is part of the mobile carriers measures to prevent fraudulent SMS messages reaching their customers. When a Sender ID is registered, it also helps mobile carriers tracing abuse back to a specific sender. This is more important now than ever since the number of SMS scams is on the rise.

Across all countries, some Sender IDs may be at risk of being rejected automatically due to protective measures against phishing attacks. Sender IDs such as Apple, Google, GLS, PayPal and other well-known brands must be approved by us before taken into use. Otherwise, the messages will be rejected.

Go to country restrictions

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United States

All SMS traffic sent to the United State...

All SMS traffic sent to the United States must originate from a 10DLC number, a US toll-free number or short code.

Please contact our sales and support team, if you need a number for US traffic.

France

The French operators have implemented ru...

The French operators have implemented rules concerning Sender ID registration, which means that certain Sender IDs, e.g. related to banking and related areas, need to be registered. Otherwise, the message will likely be rejected by a Sender ID filter. 

If you are in doubt, you can contact our support for a list of Sender IDs where it is necessary to file a request before you can use them.

Italy

At the end of 2023, new regulations were...

At the end of 2023, new regulations were implemented in Italy regarding Sender IDs.

That means that alpha-numeric Sender IDs are only allowed for:

  • Companies/entities with VAT and PEC in Italy.
  • Italian companies/organizations that register their Sender ID at the Italian Authority database (AGCOM) through a licensed Italian messaging provider.

For all other companies/entities, SMS messages will be terminated with local numeric Sender IDs.

Other countries

If you wish to send SMS traffic to the c...

If you wish to send SMS traffic to the countries listed below, we recommend registering Sender IDs to ensure that the messages are delivered.

  • UAE
  • Turkey
  • Qatar
  • Indonesia
  • Thailand
  • Vietnam
  • Morocco
  • Ukraine
  • Egypt
  • India
  • Iran
  • Serbia

How do I get a Sender ID registered?

In some countries it may be a requiremen...

In some countries it may be a requirement to rent the Sender ID exactly like you when you rent a virtual numbers or keyword. 

Please contact support, after which they will inform you about the price and your options. If you want to proceed, support will help you make the application to use a specific Sender ID.

In some cases, it is also required to send an NOC form with additional information, which is passed on to the message providers in that country.

Please note that it is a long process (1-8 weeks) to fill out these applications and get them approved, and therefore there may occur a minimum requirement for the expected traffic volume to the country where the Sender ID is to be registered.

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