How to customize the CLI and SMS Sender ID?

CLI (for calls) and Sender ID (SMS) are incredibly potent tool to include your branding in your voice and text communications. The process to set them up is the same for both, but they are distinct and handled separately.

Authorization & Ownership

Claiming a new CLI or SMS Sender ID requires a proof of ownership.

Authorizations of new alphanumeric CLIs are verified by our support team to protect end-users from any possible fraud. We refuse alphanumeric CLIs that are too broad or voluntarily vague (example: "Your Bank").

You need documents to prove your ownership of the desired name, such a bill or a proof of your right to use the desired identifier.

Cost of a CLI / SMS Sender ID

There is no extra charge to use a CLI. Please read the previous section to learn more about the detail of the procedure. Both LVN (Long Virtual Numbers) and shortcodes can be used as CLIs for voice.

Any number bought using CALLR can be used as a CLI.

Claiming a new CLI / SMS Sender ID

Please visit the Limit page of your CALLR console to claim a new CLI or SMS Sender ID. You can claim several CLI/ID at once (one per line).

You need to upload a valid proof of ownership for each CLI/Sender ID your are attempting to claim.


Please note: Each claim is reviewed by our team to prevent abuses.

SMS sender ID

SMS Sender identification can be customized using CLI. SMS Sender can be a number or use any alphanumeric characters (A-Z, 0-9, space, -, _).


Example of a customized SMS sender ID (YourBrand)



Handling STOP command with an alphanumeric sender ID

If you use an alphanumeric sender ID, the SMS campaign can only be one way. Your customers can't reply to your messages. If you are operating in a country that requires STOP command compliance you need to include an option for your users to unsubscribe. 

You can do so by using the special string  %STOPNUM% - we'll replace it by a number to process the STOP commands you receive.

CLI / SMS Sender ID Availability Overview

Afghanistan No
Albania Yes
Algeria No
Andorra Yes
Angola Yes
Anguilla Yes
Antigua & Barbuda Yes
Argentina No
Armenia Yes
Aruba Yes
Australia Yes
Austria Yes
Azerbaijan No
Bahamas Yes
Bahrain Yes
Bangladesh No
Barbados Yes
Belarus Yes
Belgium No
Belize Yes
Benin Yes
Bermuda Yes
Bhutan Yes
Bolivia Yes
Bosnia & Herzegovina Yes
Botswana Yes
Brazil No
Brunei Darussalam Yes
Bulgaria Yes
Burkina Faso Yes
Burundi Yes
Cambodia Yes
Cameroon Yes
Canada No
Cape Verde Yes
Cayman Islands No
Central African Republic Yes
Chad Yes
Chile No
China* No
Colombia No
Comoros Yes
Congo No
Congo D.R. No
Cook Islands Yes
Costa Rica No
Croatia No
Cuba No
Cyprus Yes
Czech Republic Yes
Denmark Yes
Diego Garcia No
Djibouti Yes
Dominica Yes
Dominican Republic No
Ecuador No
Egypt No
El Salvador No
Equatorial Guinea Yes
Estonia Yes
Falkland Islands Yes
Faroe Islands Yes
Fiji Yes
Finland Yes
France Yes
French Guiana No
French Polynesia Yes
Gabon Yes
Gambia Yes
Georgia Yes
Germany Yes
Ghana No
Gibraltar Yes
Greece Yes
Greenland Yes
Grenada Yes
Guadeloupe Yes
Guam No
Guatemala No
Guernsey Yes
Guinea Yes
Guinea-Bissau Yes
Guyana Yes
Haiti Yes
Honduras No
Hong Kong Yes
Hungary No
Iceland Yes
India No
Indonesia No
Iran No
Iraq No
Ireland Yes
Isle of Man Yes
Israel Yes
Italy Yes
Cote dIvoire Yes
Jamaica Yes
Japan Yes
Jersey Yes
Jordan No
Kazakhstan No
Kenya No
Kuwait No
Kyrgyzstan No
Laos PDR No
Latvia Yes
Lebanon Yes
Lesotho Yes
Liberia Yes
Libya Yes
Liechtenstein Yes
Lithuania Yes
Luxembourg Yes
Macau Yes
Macedonia Yes
Madagascar Yes
Malawi Yes
Malaysia No
Maldives Yes
Mali No
Malta Yes
Martinique Yes
Mauritania Yes
Mauritius Yes
Mayotte Yes
Mexico No
Moldova Yes
Monaco No
Mongolia Yes
Montenegro Yes
Montserrat Yes
Morocco No
Mozambique No
Myanmar No
Namibia No
Nauru No
Nepal No
Netherlands Yes
Netherlands Antilles Yes
New Caledonia Yes
New Zealand No
Nicaragua No
Niger Yes
Nigeria Yes
Norfolk Island Yes
Norway Yes
Oman No
Pakistan No
Palestinian Territory Yes
Panama No
Papua New Guinea Yes
Paraguay Yes
Peru Yes
Philippines No
Poland Yes
Portugal Yes
Puerto Rico No
Qatar No
Reunion Yes
Romania No
Russia Yes
Rwanda Yes
Samoa Yes
San Marino Yes
Sao Tome & Principe Yes
Saudi Arabia No
Senegal Yes
Serbia Yes
Seychelles Yes
Sierra Leone Yes
Singapore Yes
Slovakia Yes
Slovenia Yes
Solomon Islands Yes
Somalia Yes
South Africa No
South Korea No
South Sudan Yes
Spain Yes
Sri Lanka No
St Kitts & Nevis Yes
St Lucia Yes
St Vincent & the Grenadines Yes
Sudan Yes
Suriname Yes
Swaziland Yes
Sweden Yes
Switzerland Yes
Syria No
Taiwan Yes
Tajikistan Yes
Tanzania Yes
Thailand Yes
Timor-Leste Yes
Togo Yes
Tonga Yes
Trinidad & Tobago Yes
Tunisia No
Turkey No
Turkmenistan Yes
Turks & Caicos Islands Yes
Uganda Yes
Ukraine Yes
United Arab Emirates No
United Kingdom Yes
United States No
Uruguay No
Uzbekistan Yes
Vanuatu Yes
Venezuela No
Vietnam No
Virgin Islands British Yes
Yemen Yes
Zambia Yes
Zimbabwe Yes
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