Cuba
Name

Cuba

ISO Code

CU

Region

North America

Mobile Country Code

368

Dialing code

+53

Major carriers

Cubacel

Guidelines for Cuba
Two-way SMS supported

No

Twilio MMS support

Converted to SMS with embedded URL

Sending SMS to landline numbers

SMS cannot be sent to landline destination number. The Twilio REST API will throw a 400 response with error code 21614, the message will not appear in the logs and the account will not be charged.

Best practices

All A2P traffic to Cuba must have the Sender ID pre registered before the traffic is sent. Twilio strongly encourages customers to review proposed use cases with qualified legal counsel to make sure that they comply with all applicable laws. The following are some general best practices:

  1. Get opt-in consent from each end user before sending any communication to them, particular for marketing or other non-essential communications.
  2. Only communicate during an end user's daytime hours unless it is urgent.
  3. SMS campaigns should support HELP/STOP messages, and similar messages, in the end user's local language.
  4. Do not contact end users on do-not-call or do-not-disturb registries.
Phone Numbers and Sender ID
Preregistered
Operator network capability
--
Twilio supported
--
Sender ID format

--

Sender ID preserved

--

Two-way support
--
Provisioning time
--
Cost
--
Throughput (messages per second)
--
Use case restrictions
--
Best practices
--
Alphanumeric
Operator network capability

All A2P traffic to Cuba must have the Sender ID pre registered before the traffic is sent.

Twilio supported
--
Sender ID format
--
Sender ID preserved
--
Two-way support
--
Provisioning time
--
Cost
--
Throughput (messages per second)
--
Use case restrictions
--
Best practices

All A2P traffic to Cuba must have the Sender ID pre registered before the traffic is sent.

Long Code
Operator network capability
--
Twilio supported

Not Supported

Sender ID format
--
Sender ID preserved
--
Two-way support
--
Provisioning time
--
Cost
--
Throughput (messages per second)
--
Use case restrictions
--
Best practices
--
Short Code
Operator network capability
--
Twilio supported
--
Sender ID format
--
Sender ID preserved
--
Two-way support
--
Provisioning time
--
Cost
--
Throughput (messages per second)
--
Use case restrictions
--
Best practices
--
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