Understanding Mauritania's Phone Number System

Mauritania's phone numbering plan is essential for telecom professionals, developers, and system administrators. This guide provides a comprehensive overview of phone number formats, dialing procedures, and regulatory aspects in Mauritania.

Quick Reference Guide

• Country: Mauritania
• Country Code: +222
• International Prefix: 00
• National Prefix: None

Overview of Mauritania's Phone Number Formats

Mauritania uses a 7-digit national numbering plan without area codes. Phone numbers are categorized into landline, mobile, and special services. Below is a detailed breakdown of these formats.

General Number Structure

• Country Code: +222
• National Significant Number (NSN): 7 digits

Landline Numbers

• Format: 25[08]XXXXXX | 35X[1-7]XXXXX | 45[1-7]XXXXX
• Examples:
  • 2508083XXXX
  • 3508179XXXX
  • 4517654XXXX

Mobile Numbers

• Format: [2-4][0-46-9]XXXXXX
• Examples:
  • 2244046XXXX
  • 3245953XXXX
  • 4246995XXXX

Toll-Free Numbers

• Format: 800XXXXX
• Examples:
  • 8001234XXXX
  • 8005678XXXX

Special Services Numbers

• Format: 1XX
• Examples:
  • 117 (Emergency Services)
  • 118 (Directory Assistance)

Number Format Summary Table

Type	Format	Example
Landline	25[08]XXXXXX	2508083XXXX
Landline	35X[1-7]XXXXX	3508179XXXX
Landline	45[1-7]XXXXX	4517654XXXX
Mobile	[2-4][0-46-9]XXXXXX	3245953XXXX
Toll-Free	800XXXXX	8001234XXXX
Special	1XX	117

Regular Expressions for Number Validation

To validate Mauritanian phone numbers, use the following regular expressions:

• Landline Numbers:
  ^(?:25[08]|35[0-9]|45[1-7])\d{5}$
  

• Mobile Numbers:
  ^[2-4][0-46-9]\d{6}$
  

• Toll-Free Numbers:
  ^800\d{5}$
  

• Special Services:
  ^1\d{2}$
  

Dialing Procedures in Mauritania

Domestic Calls

• Landline to Landline: Dial the 7-digit subscriber number directly.
• Landline to Mobile: Dial the 7-digit subscriber number directly.
• Mobile to Mobile: Dial the 7-digit subscriber number directly.

International Calls

• Outgoing: Dial 00 followed by the country code and the subscriber number.
• Incoming: Dial +222 followed by the 7-digit subscriber number.

Telecom Operators and Number Ranges

Mauritania's major telecom operators and their number ranges include:

Operator	Type	Number Range
Chinguitel	Mobile	+222 2XXXXXX
Chinguitel	Landline	+222 50XXXXX
Mauritel	Mobile	+222 3XXXXXX
Mauritel	Landline	+222 51XXXXX to 58XXXXX
Mattel	Mobile	+222 61XXXXX to 62XXXXX

Number Portability in Mauritania

Number portability allows users to retain their phone numbers when switching operators. This feature is available for both mobile and fixed-line numbers.

Regulatory Body

The Mauritanian Telecommunications Regulatory Authority (ARTP) manages the numbering plan and oversees telecommunications in Mauritania.

Compliance with ITU-T Recommendations

Mauritania adheres to the ITU-T E.164 standard, ensuring global telecommunications interoperability.

Number Allocation and Management

The ARTP is responsible for the allocation and management of phone numbers, ensuring fair distribution among operators.

Technical Considerations for Developers

• Validation: Use the provided regex for number validation.
• Formatting: Include the +222 country code in international formats.
• Number Portability: Systems should accommodate number portability.
• Special Cases: Route special service numbers correctly.