Romania Phone Numbers: Format, Area Code & Validation Guide

Introduction

Romanian phone numbers use country code +40 and follow the ITU-T E.164 international standard with a 9-digit National Significant Number (NSN). This guide helps you validate Romanian phone numbers with the +40 country code, integrate with telecommunications APIs, and process mobile numbers from operators like Orange, Vodafone, Digi, and Telekom. You'll learn validation techniques, formatting best practices, ANCOM regulatory compliance, and integration considerations for 2024-2025.

We cover the basic structure of Romanian phone numbers (+40 7X XXXXXXX for mobile, +40 2X/3X XXXXXXX for fixed lines) through advanced topics like number portability, operator prefix identification, and the regulatory landscape overseen by the National Authority for Management and Regulation in Communications (ANCOM).

How Does Romania's Telephone Numbering Plan Work?

Romania's telecommunications system follows the ITU-T E.164 standard, regulated by ANCOM. This ensures global compatibility while meeting local requirements and provides a predictable, standardized structure for handling phone numbers.

Evolution and Current Structure

The Romanian numbering plan has evolved to support modern telecommunications. ANCOM adopted the current National Numbering Plan via President's Decision no. 375/2013, with amendments in Decision no. 1069/2018 and Decision no. 71/2023. These updates introduced new number formats and services while maintaining backward compatibility. Your applications may need to handle both legacy and current formats.

A Romanian phone number consists of the following components:

• Country Code: +40 (Romania's international identifier). Include this code when storing numbers in your database.
• National Significant Number (NSN): A 9-digit number that uniquely identifies a subscriber within Romania. The NSN structure varies by service type (fixed-line, mobile, toll-free).
• Area/Network Codes: Identify geographic regions (fixed lines) or network operators (mobile). Use these codes to route calls efficiently and provide location-based services.
• Subscriber Number: The unique identifier for an individual user within a specific area or network.

What Are Romanian Phone Number Types?

The Romanian numbering plan categorizes numbers based on their intended use:

• Geographic Numbers (Fixed Lines): +40 2X XXXXXXX or +40 3X XXXXXXX. These numbers tie to specific locations using domain 0Z = 02 and 0Z = 03, where A = 1 for Bucharest and Ilfov County, and AB = 30–69 for other counties. You'll encounter these when handling business addresses or landline phone numbers.
• Mobile Numbers: +40 7X XXXXXXX. The most common phone number type, associated with mobile network operators in subdomains 0ZA = 065, 066, 067, 068, 069, and the full 0Z = 07 domain.
• Toll-Free Numbers: +40 800 XXXXXX. Free for callers (freephone service in subdomain 0ZAB = 0800). Use these for customer service hotlines where you absorb call charges.
• Premium Rate Numbers: +40 90X XXXXXX. Used for value-added services with higher caller charges (subdomains 0ZAB = 0900, 0903 for information/entertainment, and 0906 for adult services). Display transparent pricing information when using these numbers.
• Shared Cost Numbers: +40 801 XXXXXX. Call costs split between caller and recipient (subdomain 0ZAB = 0801).

Non-geographic numbers for national and EU extraterritorial use exist in the +40 6X XXXXXXX range (subdomains 0ZA = 060, 061, 062, 063, and 064), as defined in ANCOM President's Decision 375/2013. These serve IoT/M2M communication where voice and SMS are prohibited or strictly limited. Understand these distinct characteristics for accurate validation and processing.

Romanian Phone Number Validation and Formatting

Learn how to validate, format, and integrate Romanian phone numbers into your applications.

How to Validate Romanian Mobile Numbers

Validate user-provided Romanian phone numbers to ensure data integrity and prevent errors. Always validate numbers with the +40 country code before storing them in your database or using them in your application logic. For comprehensive phone number validation across multiple countries, see our E.164 phone number format guide.

Here's an example validation function for Romanian mobile numbers:

// Example validation function for Romanian mobile numbers
function validateRomanianMobile(number) {
  const cleanNumber = number.replace(/\s+/g, ''); // Remove whitespace
  return /^\+407[0-9]\d{7}$/.test(cleanNumber); // Test against regex
}

// Example usage
console.log(validateRomanianMobile("+40721234567")); // true
console.log(validateRomanianMobile("0721234567")); // false (missing country code)
console.log(validateRomanianMobile("+40 21 1234567")); // false (fixed-line format)

This function removes whitespace from the input number and uses a regular expression to check if it matches Romanian mobile number format. Include the country code (+40) in your validation logic to ensure international compatibility and prevent validation errors. For comprehensive validation, check for specific operator prefixes based on 2024 allocations:

• 71: Romtelecom
• 72, 73: Vodafone Romania (formerly Connex)
• 74, 75: Orange Romania (formerly Dialog)
• 76: Telekom Romania Mobile (formerly Cosmote)
• 77: RCS&RDS (Digi)
• 78: Zapp Mobile
• 70: Mobile Virtual Network Operators (MVNOs)

Test your validation logic with valid and invalid inputs, including edge cases like numbers with extra digits or special characters.

Avoid relying solely on regular expressions for validation. While regex is powerful, it can't catch all edge cases. Use a lookup against a database of known valid number prefixes or a dedicated phone number validation library (such as Google's libphonenumber) for robust validation.

How to Format Romanian Phone Numbers

Format Romanian phone numbers consistently throughout your application – both for display and storage – to improve readability and user experience. Romanian numbers follow the E.164 format: +40 followed by 9 digits.

Here's an example formatting function:

// Example formatting function
function formatRomanianNumber(number) {
  const cleaned = number.replace(/\D/g, ''); // Remove non-digit characters
  if (cleaned.startsWith('40')) { // Check for country code
    return `+${cleaned.substring(0, 2)} ${cleaned.substring(2, 4)} ${cleaned.substring(4, 7)} ${cleaned.substring(7)}`;
  }
  return null; // Invalid format
}

// Example usage
console.log(formatRomanianNumber("+40721123456")); // +40 72 123 456
console.log(formatRomanianNumber("0721123456")); // null (missing country code)

This function removes all non-digit characters and formats the number with spaces between the country code, area code, and subscriber number. The format (+40 XX XXX XXXX) is commonly used in Romania and improves readability. Adapt this function to different formatting styles as needed.

Error Handling and Edge Cases

Anticipate and handle potential errors gracefully when processing Romanian phone numbers:

• Invalid Input: Handle invalid number formats or unrecognized categories. Provide clear error messages such as "Enter a valid Romanian mobile number in format +40 7X XXX XXXX" to guide users.
• Missing Country Code: Prepend the country code automatically if you can infer the user's location, but use this cautiously to avoid incorrect assumptions.
• Number Portability: Numbers can be ported between operators, making area code-based operator identification unreliable. Use a number portability database or API for accurate operator information. Romania's portability system has demonstrated exceptional reliability: over 1.36 million phone numbers ported in 2024 (94% mobile), with a 99.8% success rate as of 2022. Since launching in October 2008, more than 11 million phone numbers have changed operators under ANCOM regulation.

How to Store Romanian Phone Numbers in Your Database

Store Romanian phone numbers in your database with these best practices. For general guidance on international phone number storage, see our phone number lookup guide.

• Data Type: Use VARCHAR(15) to store the full international format (including the + sign and country code). This accommodates all valid formats and ensures consistency.
• Indexing: Create an index on the phone number column to speed up queries. Use partial indexing for prefix-based searches if you frequently filter by area code or operator prefix.
• Normalization: Store numbers in a consistent format (the international E.164 format) to avoid duplicates and simplify querying.

API Integration Best Practices

Use a standardized format for data exchange when integrating with APIs that handle Romanian phone numbers. A common approach uses a JSON object like this:

{
  "phoneNumber": "+40721234567",
  "type": "mobile",
  "operator": "Vodafone",
  "isValid": true,
  "formatted": "+40 72 123 4567"
}

This format provides clear, structured information about the phone number: type, operator (if known), validation status, and formatted representation.

How Does Number Portability Work in Romania?

Number portability allows users to keep their phone numbers when switching operators, making area code-based operator identification unreliable.

Integrate with a number portability database or API if your application requires accurate operator information. These services provide real-time data about the current operator for a given number. The porting process involves initial request processing, database integration, network routing updates, and service activation. Ensure your system handles these changes and maintains data accuracy.

2024 Portability Trends: In 2024, Digi Mobile (RCS&RDS) dominated number portability gains, surpassing Orange, Vodafone, and Telekom in the first seven months of the year. This trend reflects continued market competitiveness and consumer mobility in Romania's telecommunications sector.

Romania Mobile Network Operators and Market Share

Understanding the Romanian telecommunications market helps you make informed development decisions. The market remains highly competitive in 2024 with four major mobile network operators:

• Orange Romania: Market leader with the highest mobile market share (approximately 34% as of 2023-2024), recognized for best mobile internet performance including 5G in 2024
• Vodafone Romania: Second-largest operator (approximately 33% market share), with Orange and Vodafone together accounting for 66.9% of overall mobile subscriptions
• Digi (RCS&RDS): Third-largest with over 24% market share as of end-2023, showing strongest growth in number portability gains during 2024
• Telekom Romania: Fourth major operator, with ongoing market consolidation including the DIGI-Vodafone acquisition of Telekom Romania operations

The market is characterized by rapid 4G and 5G network expansion, increasing demand for OTT services, and ongoing consolidation through mergers and acquisitions.

Market trends create technical implications for developers:

• Protocol Support: Support relevant protocols like SIP (VoIP), SS7 (traditional telephony), and SMPP (SMS).
• Number Formatting: Handle various number formats, including legacy formats and formatting variations.
• Network Technology: Stay current with network technologies (4G, 5G) and their impact on data speeds and latency.

ANCOM Regulations and Future Developments

The Romanian telecommunications landscape constantly evolves with new regulations and technologies. ANCOM's 2025 Action Plan develops procedures for code allotment and assignment from international organizations, and introduces additional methods for transferring numbering resources between operators (requiring 45-day advance notification). Stay informed about these developments and adapt your applications by monitoring numbering plan changes, data privacy and security regulations, and new technology adoption like 5G and IoT.

Frequently Asked Questions About Romanian Phone Numbers

What is Romania's country code for phone numbers?

Romania's country code is +40. All Romanian phone numbers in E.164 international format begin with +40, followed by a 9-digit National Significant Number. For example: +40 721 234 567. This country code is assigned by the International Telecommunication Union (ITU) and is required for all international calls to Romania. Always include the +40 country code when storing Romanian phone numbers to ensure international compatibility and prevent validation errors.

How do you validate a Romanian mobile phone number?

Check for the +40 country code followed by a 7X prefix and 7 additional digits (format: +40 7X XXX XXXX). Use regex pattern ^\+407[0-9]\d{7}$ after removing whitespace. For comprehensive validation, verify operator prefixes: 70 (MVNOs), 71 (Romtelecom), 72–73 (Vodafone), 74–75 (Orange), 76 (Telekom), 77 (Digi), 78 (Zapp). Use a phone validation library like Google's libphonenumber or an ANCOM-compliant number portability database for production applications.

What are the Romanian mobile operator prefixes in 2024?

Romanian mobile operators use these prefixes in 2024: Orange (74, 75), Vodafone (72, 73), Digi/RCS&RDS (77), Telekom Romania (76), Romtelecom (71), Zapp Mobile (78), and MVNOs (70). Due to number portability, prefix-based operator identification is unreliable – over 1.36 million numbers were ported in 2024 with a 99.8% success rate. Use a number portability lookup API for accurate real-time operator identification.

How does Romanian number portability affect application development?

Romanian number portability lets subscribers keep their phone numbers when switching operators, making prefix-based identification unreliable. Since launching in October 2008, over 11 million numbers have been ported, with 1.36 million in 2024 alone (94% mobile). Integrate with a number portability database or API for accurate operator information. Store numbers in E.164 format (+40) and validate using ANCOM regulations (Decision 375/2013) instead of assuming the operator from the prefix.

What is the format for Romanian fixed-line phone numbers?

Romanian fixed-line phone numbers use format +40 2X XXX XXXX or +40 3X XXX XXXX, where X represents digits. Geographic numbers use domain 0Z = 02 and 0Z = 03 per ANCOM Decision 375/2013. Bucharest and Ilfov County use A = 1 (e.g., +40 21 XXX XXXX), while other counties use AB = 30 through 69 (e.g., +40 30 XXX XXXX for Suceava). Store fixed-line numbers in VARCHAR(15) with full country code for international compatibility.

How should I store Romanian phone numbers in a database?

Store Romanian phone numbers in VARCHAR(15) to accommodate the full E.164 international format including the + sign and +40 country code (e.g., +40721234567). Normalize to E.164 format before storage to prevent duplicates and simplify queries. Create an index on the phone number column for query performance. Use partial indexing for prefix-based searches when filtering by operator or geographic area. Never store numbers without the country code – this breaks international compatibility and ANCOM compliance.

What are Romanian toll-free and premium rate number formats?

Romanian toll-free numbers use format +40 800 XXXXXX (subdomain 0ZAB = 0800) where calls are free for callers. Premium rate numbers use +40 90X XXXXXX: 0900 and 0903 for information/entertainment, 0906 for adult entertainment. Shared cost numbers use +40 801 XXXXXX where costs split between caller and recipient. ANCOM President's Decision 375/2013 defines these formats. Display clear pricing information when implementing premium rate services.

What are the ANCOM regulations for Romanian phone numbers?

Romanian phone numbers are governed by ANCOM President's Decision no. 375/2013 with amendments by Decision 1069/2018 and Decision 71/2023. These establish the National Numbering Plan structure, including E.164 compliance, number categorization, and allocation rules. ANCOM's 2025 Action Plan introduces new procedures for transferring numbering resources between operators (requiring 45-day advance notification) and code assignment from international organizations. Monitor ANCOM's official website (ancom.ro) for regulatory updates affecting application development.

Conclusion

You now have a comprehensive understanding of Romanian phone numbers, from basic structure and validation to advanced topics like number portability and market analysis. Follow these best practices to ensure your applications handle Romanian phone numbers accurately, efficiently, and in compliance with current regulations. Always validate user input, format numbers consistently, and stay informed about the evolving telecommunications landscape.