How are mobile numbers structured in Italy?

Mobile numbers in Italy start with a '3' followed by 7-8 digits. The mobile prefix is typically in the format 3X, where X can be any digit from 1 to 9. For example, a valid mobile number could be 3929878314.

What are the dialing procedures for international calls to Italy?

To call Italy from abroad, dial the international access code (e.g., 00 or +), followed by Italy's country code (+39), and then the full Italian number including the area code if applicable. For example, to call a number in Rome, you would dial +39 0669790793.

Is number portability supported in Italy?

Yes, Italy supports mobile number portability (MNP), allowing users to retain their mobile numbers when switching between service providers. This process is regulated by AGCOM, the national telecommunications authority.

Which major telecom operators are active in Italy, and what are their number ranges?

The major telecom operators in Italy include TIM, Vodafone Italy, Wind Tre, and Iliad. TIM's mobile prefixes include 331, 335, and 339, and they also manage landline numbers in areas like Rome (06) and Milan (02). Vodafone Italy uses mobile prefixes like 340, 347, and 348, and landline prefixes in cities like Turin (011) and Naples (081). Wind Tre operates with mobile prefixes such as 320, 328, and 388, and landline prefixes in Venice (041) and Florence (055). Iliad, a newer entrant, primarily uses mobile prefixes 351 and 377.

How do I dial a landline number within Italy?

To dial a landline number within Italy, you need to dial the area code followed by the subscriber number. For example, 0669790793 for a number in Rome.

How can I call a mobile number in Italy from abroad?

To call a mobile number in Italy from abroad, dial the international prefix of your country, followed by +39, and then the mobile number. For example, +393929878314.

What is the format for Italian mobile numbers?

Italian mobile numbers start with a 3 followed by 7 to 8 digits. For example, 3929878314.

Are there any national prefixes for dialing in Italy?

No, there are no national prefixes required for dialing within Italy.

How do I make an international call from Italy?

To make an international call from Italy, dial 00 followed by the country code, area code, and subscriber number.

What is mobile number portability in Italy?

Mobile number portability (MNP) in Italy allows users to keep their mobile numbers when changing service providers.

Which authority regulates telecommunications in Italy?

Telecommunications in Italy are regulated by the Autorità per le Garanzie nelle Comunicazioni (AGCOM).

What are some major telecom operators in Italy?

Major telecom operators in Italy include TIM, Vodafone Italy, Wind Tre, and Iliad.

What is the prefix for toll-free numbers in Italy?

Toll-free numbers in Italy start with the prefix 800.

How are premium rate numbers formatted in Italy?

Premium rate numbers in Italy start with 89 followed by 5 to 6 digits.

Can I block premium service numbers in Italy?

Yes, premium service numbers may be blocked by default on some networks to prevent unauthorized charges.

What is the role of AGCOM in number allocation?

AGCOM manages the distribution of number ranges to telecom operators and oversees the National Numbering Plan in Italy.

What are shared cost numbers in Italy?

Shared cost numbers in Italy start with 840 or 848 followed by 6 digits.

What are 'golden numbers' in Italy?

Golden numbers are easy-to-remember sequences that may incur higher fees or special allocation procedures.

How should developers validate Italian phone numbers?

Developers should use regular expressions to validate Italian phone numbers, such as `^0\d{6,10}$` for landlines.

What is the international prefix for dialing out of Italy?

The international prefix for dialing out of Italy is 00.

How should Italian phone numbers be stored for consistency?

Italian phone numbers should be stored in E.164 format for consistency, such as +393929878314.

What mobile prefixes are used by TIM in Italy?

TIM uses mobile prefixes such as 331, 335, and 339 in Italy.

Understanding Phone Numbers in Italy

Q: What is the country code for Italy?

The country code for Italy is +39.

Q: What is the country code for Italy?

The country code for Italy is +39.

Quick Reference Guide

Country: Italy
Country Code: +39
International Prefix: 00
National Prefix: None

Comprehensive Overview

Gain insights into Italy's telephone numbering plan, including its structure, formats, and dialing procedures. This guide is essential for telecom professionals, developers, and system administrators seeking detailed information on Italy's phone number system.

Number Formats Explained

General Number Structure

Italian phone numbers vary based on type, such as landline, mobile, or special service numbers. Here's the general structure:

Country Code: +39
Area Code: 2-4 digits (geographic numbers start with 0)
Subscriber Number: 5-10 digits
Mobile Prefix: 3X (X is 1-9)
Special Services: Prefixes like 800 (toll-free), 89X (premium rate)

Detailed Number Structure Breakdown

Number Type	Format Example	Regular Expression	Description
Landline	`0669790793`	`^0\d{6,10}$`	Landline numbers start with a 0 followed by a 6-10 digit subscriber number.
Mobile	`3929878314`	`^3[1-9]\d{7,8}$`	Mobile numbers start with a 3 followed by 7-8 digits.
Toll-Free	`80093383`	`^800\d{5,6}$`	Toll-free numbers start with 800 followed by 5-6 digits.
Premium Rate	`892830404`	`^89[2-9]\d{5,6}$`	Premium rate numbers start with 89 followed by 5-6 digits.
Shared Cost	`840808030`	`^84[08]\d{6}$`	Shared cost numbers start with 840 or 848 followed by 6 digits.

Dialing Procedures in Italy

Domestic Calls

Landline to Landline: Dial the area code and subscriber number. Example: 0669790793.
Landline to Mobile: Dial the mobile number directly. Example: 3929878314.
Mobile to Mobile: Dial the mobile number directly. Example: 3929878314.
Mobile to Landline: Dial the area code and subscriber number. Example: 0669790793.

International Calls

Outgoing: Dial 00, followed by the country code, area code, and subscriber number. Example: 00 44 20 7946 0958 (calling the UK from Italy).
Incoming: From abroad, dial +39 followed by the full Italian number, including the area code. Example: +39 0669790793.

Number Portability in Italy

Italy supports mobile number portability (MNP), allowing users to keep their mobile numbers when changing providers. This is regulated by the Autorità per le Garanzie nelle Comunicazioni (AGCOM), Italy's telecom authority.

Major Telecom Operators and Number Ranges

Operator	Mobile Prefixes	Landline Prefixes	Notes
TIM	331, 335, 339	06 (Rome), 02 (Milan)	Formerly Telecom Italia, TIM is Italy's largest telecom operator.
Vodafone Italy	340, 347, 348	011 (Turin), 081 (Naples)	Vodafone offers extensive coverage across Italy.
Wind Tre	320, 328, 388	041 (Venice), 055 (Florence)	Wind Tre is a major player in both mobile and fixed-line services.
Iliad	351, 377	N/A	A recent entrant in the Italian market, known for competitive pricing.

ITU Standards and Recommendations

Italy adheres to the ITU-T E.164 standard, defining the international public telecommunication numbering plan. The country code for Italy is +39, and all numbers must conform to this standard.

Number Allocation and Management

Number allocation in Italy is managed by AGCOM, overseeing the distribution of number ranges to telecom operators. This ensures efficient use and prevents hoarding. AGCOM also manages the National Numbering Plan, including rules for number portability, special services, and toll-free numbers.

Technical Restrictions and Special Cases

Golden Numbers: Certain easy-to-remember sequences may incur higher fees or special allocation procedures.
Number Blocking: Premium service numbers may be blocked by default on some networks to prevent unauthorized charges.

Technical Considerations for Developers

When developing systems that interact with Italian phone numbers, consider the following:

Validation: Use regular expressions to validate number formats, e.g., ^0\d{6,10}$ for landlines.
Normalization: Store numbers in E.164 format for consistency, e.g., +393929878314.
Portability Checks: Implement checks for mobile number portability to ensure accurate routing.
Internationalization: Consider international dialing rules and time zones in your application logic.

Info: For the latest telecommunications regulations in Italy, visit the AGCOM official website.

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