Comprehensive Guide to Guadeloupe Phone Numbers

Quick Reference

Country: Guadeloupe
Country Code: +590
International Prefix: 00
National Prefix: 0

Overview

Understand the intricacies of Guadeloupe's telephone numbering system with this detailed guide. Learn about number formats, dialing procedures, and regulatory frameworks essential for telecom professionals, developers, and system administrators.

Number Formats

Guadeloupe utilizes the French numbering plan with specific adaptations for its landline and mobile numbers. Below is a detailed breakdown:

General Number Structure

Country Code: +590
National Number: 9 digits
Format: +590 XXXXXXXXX

Geographic (Landline) Numbers

Number Type	Format	Example	Description
Landline	`+590 0X XX XX XX`	+590 0590 27 12 34	Landline numbers start with `0590` followed by 6 digits.
Mobile	`+590 690 XX XX XX`	+590 690 12 34 56	Mobile numbers start with `0690` followed by 6 digits.

Special Numbers

Number Type	Format	Example	Description
Toll-Free	`+590 800 XXX XXX`	+590 800 123 456	Toll-free numbers start with `0800` followed by 6 digits.
Premium Rate	`+590 89X XXX XXX`	+590 892 123 456	Premium-rate numbers start with `089X` followed by 6 digits.

Regular Expressions for Validation

Landline: /^$\+590|0$590\d{6}$/
Mobile: /^$\+590|0$690\d{6}$/
Toll-Free: /^$\+590|0$800\d{6}$/
Premium Rate: /^$\+590|0$89\d{7}$/

Dialing Procedures

Domestic Calls

Landline to Landline: Dial 0 followed by the landline number (e.g., 0590 XX XX XX).
Landline to Mobile: Dial 0 followed by the mobile number (e.g., 0690 XX XX XX).
Mobile to Mobile: Dial 0 followed by the mobile number (e.g., 0690 XX XX XX).

International Calls

Outgoing: Dial 00 followed by the country code, area code, and subscriber number (e.g., 00 1 212 555 1234 for a call to the USA).
Incoming: International callers should dial +590 followed by the local number without the leading 0 (e.g., +590 590 XX XX XX).

Number Portability

Guadeloupe supports mobile number portability, allowing users to retain their phone numbers when switching between mobile operators. This service is regulated by the French telecommunications authority, ARCEP.

Telecom Operators and Number Ranges

Operator	Number Range	Description
Orange	`0590 XX XX XX`, `0690 XX XX XX`	Major operator offering both landline and mobile services.
SFR Caraïbe	`0690 XX XX XX`	Mobile services provider.
Digicel	`0690 XX XX XX`	Mobile services provider.

ITU Standards

Guadeloupe adheres to ITU-T recommendations, particularly:

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

Number Allocation and Management

The allocation and management of phone numbers in Guadeloupe are overseen by ARCEP. Number blocks are assigned to operators based on demand and regulatory policies.

Technical Restrictions and Special Cases

Golden Numbers: Certain numbers may be reserved as "golden numbers" and are often sold at a premium.
Number Blocking: Specific ranges may be blocked or reserved for special services, such as emergency or government use.

Technical Considerations for Developers

When developing systems that handle Guadeloupe phone numbers, consider the following:

Validation: Implement regex patterns to validate phone numbers based on the provided formats.
Portability: Ensure systems can handle number portability, especially for mobile numbers.
Internationalization: Support for both national and international dialing formats is crucial.
Prefix Handling: Properly handle the national prefix (0) when processing domestic numbers.

Note: For the latest updates on Guadeloupe's telecommunications regulations, please visit ARCEP's official website.