What is the country code for Cuba?

The country code for Cuba is +53.

How are mobile numbers structured in Cuba?

Mobile numbers in Cuba start with the digit '5' followed by 7 digits, resulting in a format like '5XXXXXXX'. For example, a typical mobile number would be 51234567.

What are the dialing procedures for international calls to Cuba?

To dial a Cuban number from abroad, use the format: +53 followed by the area code or prefix and the subscriber number. For example, to call a landline in Havana, you would dial +53 7 2345678.

Is number portability available in Cuba?

No, Cuba does not currently support number portability for either mobile or fixed-line numbers. Subscribers cannot retain their phone numbers when switching between service providers.

Who is the main telecom operator in Cuba, and what are the number ranges?

Etecsa (Empresa de Telecomunicaciones de Cuba S.A.) is the sole telecom operator in Cuba. Specific number ranges are centrally managed and not publicly disclosed.

What is the country code for Cuba?

The country code for Cuba is +53.

How do I dial a landline number in Cuba from abroad?

To call a Cuban landline from abroad, dial +53 followed by the area code and the subscriber number. For example, +53 7 2345678 for a Havana landline.

What is the format for Cuban mobile phone numbers?

Cuban mobile phone numbers are formatted as 5 followed by seven digits, e.g., 51234567.

How do I make an international call from Cuba?

To make an international call from Cuba, use the format: 119 + [Country Code] + [National Number]. For example, to call the United States, dial 119 1 2123456789.

What is the national prefix for dialing within Cuba?

The national prefix for dialing within Cuba is 0.

Who regulates telephone numbers in Cuba?

The Ministerio de Comunicaciones de Cuba regulates telephone numbers in Cuba.

What are the emergency numbers in Cuba?

The emergency numbers in Cuba are 106 for police, 105 for fire, and 104 for ambulance services.

What is the dialing format for a domestic landline to mobile call in Cuba?

To call a mobile number from a landline in Cuba, dial 0 followed by the mobile prefix 5 and the subscriber number, e.g., 0 5 1234567.

Which organization is the sole telecom operator in Cuba?

Etecsa (Empresa de Telecomunicaciones de Cuba S.A.) is the sole telecom operator in Cuba.

What are the toll-free number formats in Cuba?

Toll-free numbers in Cuba are formatted as 800 followed by four digits, e.g., 8001234.

How are shared cost numbers formatted in Cuba?

Shared cost numbers in Cuba are formatted as 807 followed by four digits, e.g., 8074567.

What is the international prefix for dialing out of Cuba?

The international prefix for dialing out of Cuba is 119.

How are premium rate numbers formatted in Cuba?

Premium rate numbers in Cuba are formatted as 809 followed by four digits, e.g., 8097890.

What is the format for a landline number in Cuba?

A landline number in Cuba is formatted with an area code (2-7) followed by six or seven digits, e.g., 72345678 or 3123456.

Does Cuba have golden numbers?

There is no public information on golden numbers in Cuba, such as numbers with repeating digits.

What are the ITU-T standards followed by Cuba for numbering plans?

Cuba follows ITU-T Recommendations E.123 for telephone number notation and E.164 for the international public telecommunication numbering plan.

Can I block specific numbers in Cuba?

Specific rules for number blocking in Cuba are not publicly available.

What is the dialing format for a mobile to mobile call within Cuba?

For a mobile to mobile call within Cuba, dial the mobile prefix 5 followed by the subscriber number, e.g., 5 1234567.

Understanding Cuba's Phone Number Formats and Dialing Rules

Q: Is number portability available in Cuba?

No, Cuba currently does not support number portability for mobile or fixed-line numbers.

Quick Reference Guide

Country: Cuba
Country Code: +53
International Prefix: 119
National Prefix: 0
Regulatory Authority: Ministerio de Comunicaciones de Cuba

Overview

This comprehensive guide offers a detailed analysis of Cuba's telephone numbering system, including number formats, dialing procedures, and telecom regulations. It is an essential resource for telecom professionals, developers, and system administrators seeking precise information on Cuba's phone number structures and technical considerations.

Number Formats

General Number Structure

Cuba's telephone numbers follow a fixed-length format, which varies by service type (landline, mobile, toll-free). The standard format includes:

Country Code: +53
National Number: 6 to 8 digits
- Area Code/Prefix: 1 to 2 digits (indicating region or service type)
- Subscriber Number: 4 to 7 digits

Number Format Table by Type

Type	Format	Example Numbers
Landline	`[2-7]XXXXXXX`	72345678, 3123456
Mobile	`5XXXXXXX`	51234567
Toll-Free	`800XXXX`	8001234
Shared Cost	`807XXXX`	8074567
Premium Rate	`809XXXX`	8097890

Regular Expressions for Validation

For developers, use these regular expressions to validate Cuban phone numbers:

Landline: ^[2-7][0-9]{6,7}$
Mobile: ^5[0-9]{7}$
Toll-Free: ^800[0-9]{4}$
Shared Cost: ^807[0-9]{4}$
Premium Rate: ^809[0-9]{4}$

Dialing Procedures

Domestic Calls

Landline to Landline

Dial Format: 0 + [Area Code] + [Subscriber Number]
Example: To call a landline in Havana from another city: 0 7 2345678

Landline to Mobile

Dial Format: 0 + 5 + [Subscriber Number]
Example: To call a mobile number from a landline: 0 5 1234567

Mobile to Mobile

Dial Format: 5 + [Subscriber Number]
Example: To call another mobile number: 5 1234567

International Calls

Outgoing International Calls

Dial Format: 119 + [Country Code] + [National Number]
Example: To call the United States: 119 1 2123456789

Incoming International Calls

Dial Format: +53 + [Area Code/Prefix] + [Subscriber Number]
Example: To call a Cuban landline from abroad: +53 7 2345678

Number Allocation and Management

The Ministerio de Comunicaciones de Cuba oversees the allocation and management of telephone numbers, adhering to ITU-T Recommendations E.123 and E.164 for international compliance.

Major Telecom Operators

Cuba's telecom industry is state-controlled, with Etecsa (Empresa de Telecomunicaciones de Cuba S.A.) as the sole operator. Specific number ranges are not publicly disclosed.

Technical Considerations

Number Portability

Cuba currently does not support number portability for mobile or fixed-line numbers, meaning subscribers cannot retain their numbers when changing service providers.

ITU-T Standards

Cuba follows ITU-T Recommendations for numbering plans, including:

E.123: Notation for telephone numbers.
E.164: The international public telecommunication numbering plan.

Special Cases and Restrictions

Golden Numbers: No public information on golden numbers (e.g., numbers with repeating digits).
Number Blocking: Specific rules for number blocking are not publicly available.

Recent and Upcoming Changes

There have been no recent changes to Cuba's numbering plan, and no upcoming changes have been announced, ensuring stability in the system.

Emergency Numbers

Cuba uses a three-digit emergency number system:

Police: 106
Fire: 105
Ambulance: 104

For the latest telecommunications regulations in Cuba, visit the Ministerio de Comunicaciones de Cuba.

Conclusion

Cuba's telephone numbering plan is straightforward yet centralized, with standard formats for both landline and mobile numbers. Professionals should note the lack of number portability and centralized control of number ranges. Adhering to ITU-T standards ensures compatibility with international systems, facilitating the integration of Cuban numbers into global networks.

For further technical details or regulatory updates, always refer to official communications from the Ministerio de Comunicaciones de Cuba.

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