Phone Numbers in Lithuania: A Complete Guide

Quick Reference

• Country: Lithuania
• Country Code: +370
• International Prefix: 00
• National Prefix: 0
• Number Format: 9 digits (including area code)
• Regulatory Authority: Communications Regulatory Authority (CRA)

Overview

This guide offers an in-depth look at Lithuania's telephone numbering plan, detailing phone number structures, dialing procedures, and regulatory insights. Essential for telecommunications experts and developers, it provides clarity on implementing Lithuanian phone number formats.

Number Formats

General Structure

Lithuania follows a closed telephone numbering plan, where each phone number comprises 9 digits:

• Country Code: +370
• National Prefix: 0
• Area Code: 1-3 digits
• Subscriber Number: 5-7 digits

Number Format Table

Type	Format	Example	Description
Landline	0[3-5]XXXXXXXX	0371234567	Landline numbers with 1-3 digit area codes, followed by 6-7 digit subscriber numbers.
Mobile	06XXXXXXXX	0678123456	Mobile numbers with the prefix '6' followed by 7 digits.
Toll-Free	0800XXXXXX	0800123456	Toll-free numbers starting with '800' followed by 6 digits.
Premium Rate	0900XXXXXX	0900123456	Premium-rate services starting with '900' followed by 6 digits.
Shared Cost	0808XXXXXX	0808123456	Shared cost numbers starting with '808' followed by 6 digits.
Emergency Services	1XX	112	Short codes for emergency services.

Regular Expressions

For developers, these regular expressions validate Lithuanian phone numbers:

• Landline:
  ^0[3-5]\d{7}$
  

• Mobile:
  ^06\d{7}$
  

• Toll-Free:
  ^0800\d{6}$
  

• Premium Rate:
  ^0900\d{6}$
  

• Shared Cost:
  ^0808\d{6}$
  

• Emergency Services:
  ^1\d{2}$
  

Dialing Procedures

Domestic Calls

• Landline to Landline: Dial 0 + area code + subscriber number.
  • Example: 0312345678
• Landline to Mobile: Dial 06 + mobile number.
  • Example: 0678123456
• Mobile to Mobile: Dial 06 + mobile number.
  • Example: 0678123456

International Calls

• Outgoing: Dial 00 + country code + area code + subscriber number.
  • Example: 00 44 20 71234567 (for a UK number)
• Incoming: Dial +370 + Lithuanian number (omit leading 0).
  • Example: +370 31234567

Number Portability

Lithuania supports mobile number portability (MNP), allowing users to keep their numbers when switching providers. This is regulated by the Communications Regulatory Authority.

Major Telecom Operators and Number Ranges

Operator	Number Ranges
Telia	+370 612XXXXX, +370 698XXXXX
Bitė	+370 682XXXXX, +370 699XXXXX
Tele2	+370 670XXXXX, +370 684XXXXX

Regulatory Information

Regulatory Body

The Communications Regulatory Authority oversees Lithuania's telecommunications sector, ensuring compliance with international standards and managing the numbering plan.

Number Allocation and Management

The CRA allocates and manages phone numbers, ensuring adherence to ITU-T recommendations and overseeing changes to the numbering plan.

Recent and Upcoming Changes

• National Prefix Transition: Lithuania is moving from '8' to '0' as the national prefix for intercity calls, effective by 1 December 2025.

Technical Considerations

For Developers

• Systems must support the 9-digit format, including the national prefix.
• Implement validation using provided regex patterns.
• Adapt to the transition to '0' as the national prefix.

Special Cases

• Golden Numbers: Premium numbers may incur higher fees or have special rules.
• Number Blocking: Certain ranges may be restricted due to regulatory policies.