Understanding Phone Numbers in Georgia

Quick Reference Guide

• Country: Georgia
• Country Code: +995
• International Prefix: 00
• National Prefix: 0
• ITU-T Standard: E.164
• Regulatory Authority: Georgian National Communications Commission (GNCC)

Overview

This guide offers a comprehensive analysis of Georgia's telephone numbering plan, essential for telecom professionals, developers, and system administrators. It details the structure of phone numbers, dialing procedures, and regulations, providing accurate information for managing Georgian phone numbers.

Number Formats

General Number Structure

Georgian phone numbers follow the E.164 international standard:

• Country Code: +995
• National (Significant) Number: 8 to 9 digits
• National Prefix: 0 (for domestic dialing)

Geographic Numbers (Landline)

Format: 0[32-57]XXXXXXX

• Area Codes: 2-5 digits
• Subscriber Number: 6 digits

Examples:

• Tbilisi: 032XXXXXXX
• Kutaisi: 043XXXXXXX
• Batumi: 042XXXXXXX

Regular Expression:

^0[32-57]\d{6}$

Mobile Numbers

Format: 5[0-9]XXXXXXX

• Prefix: 5 (indicates mobile)
• Subscriber Number: 7 digits

Examples:

• Example Mobile Number: 5951234567
• Example Mobile Number: 5779876543

Regular Expression:

^5\d{8}$

Toll-Free Numbers

Format: 800XXXXXX

• Prefix: 800
• Subscriber Number: 6 digits

Examples:

• Example Toll-Free Number: 800123456

Regular Expression:

^800\d{6}$

Premium Rate Numbers

Format: 900XXXXXX

• Prefix: 900
• Subscriber Number: 6 digits

Examples:

• Example Premium Rate Number: 900654321

Regular Expression:

^900\d{6}$

Dialing Procedures

Domestic Calls

• Landline to Landline: Dial 0 + Area Code + Subscriber Number.
• Landline to Mobile: Dial 0 + Mobile Prefix (5) + Subscriber Number.
• Mobile to Mobile: Dial Mobile Prefix (5) + Subscriber Number.

Example:

• Landline to Landline: 0321234567
• Landline to Mobile: 05951234567
• Mobile to Mobile: 5951234567

International Calls

• Outgoing: Dial 00 + Country Code + National Number.

  Example: To call a number in the USA: 00 1 2125550123

• Incoming: Dial +995 + National Number (omit the leading 0).

  Example: Calling from abroad to Tbilisi: +995 321234567

Number Portability

• Mobile Number Portability (MNP): Available in Georgia since 2011, allowing subscribers to retain their numbers when switching operators.
• Regulatory Body: Managed by the Georgian National Communications Commission (GNCC).

Major Telecom Operators and Number Ranges

Number Allocation and Management

• Regulatory Authority: The Georgian National Communications Commission (GNCC) oversees the allocation and management of phone numbers in Georgia, ensuring compliance with ITU-T E.164 standards.

• Special Number Allocations: Certain ranges are reserved for services like toll-free (800) and premium-rate (900) numbers.

Technical Considerations for Developers

1. Validation: Use regular expressions to validate Georgian phone numbers.
2. Number Formatting: Store and display numbers in the E.164 format.
3. Portability Handling: Implement logic to manage number portability, especially for mobile numbers.
4. Dialing Automation: Ensure correct prefix handling for domestic and international calls.