347 Prefix: Complete Guide and Detailed Information

Discover everything about the 347 prefix: which operator it belongs to, its history, curiosities, and comparison with other prefixes. Updated guide.

Published on Jan 04, 2026
Updated on Jan 04, 2026
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In Brief (TL;DR)

The 347 prefix is a mobile telephony prefix in Italy.

It is used by Vodafone.

Its widespread diffusion testifies to the importance of mobile telephony in modern society.

The devil is in the details. 👇 Keep reading to discover the critical steps and practical tips to avoid mistakes.

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Does the 347 prefix… ring a bell? You have surely seen it appear countless times on your mobile screen, associated with callsSMS, and WhatsApp messages with friends, family, and colleagues. But how much do you really know about it? In this complete guide, we will delve into the world of the 347 prefix, revealing its origins, its link with Vodafone and offering detailed information and curiosities that might surprise you. Get ready to discover everything there is to know about this telephone prefix!

Smartphone with 347 prefix and map of Italy
The 347 prefix is one of the most widespread in Italy for mobile telephony.

The 347 prefix in Italy

The 347 prefix identifies mobile phone numbers in Italy, used by Vodafone. Unlike geographic prefixes, it has no territorial link and can be used anywhere in Italy. A number with this prefix consists of 10 digits: +39 (international code), 347, and the 7 digits of the user line.   

Origins and history

The introduction of the 347 prefix dates back to the 90s, coinciding with the spread of mobile telephony in Italy. The growing demand for phone numbers led to the assignment of new prefixes, including 347, adopted by Vodafone.   

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Curiosities about the 347 prefix

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Like other mobile telephony prefixes, 347 has been the subject of chain letters or fake news associating it with scams or computer viruses. Such information is false and baseless. The 347 prefix can also be used for premium numbers, such as those dedicated to customer service or commercial information. It is always advisable to check call costs before contacting a number with the 347 prefix, especially if you do not know the service offered.

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Comparison with other mobile telephony prefixes

Smartphone displaying an incoming call with the 347 prefix
The 347 prefix identifies Vodafone mobile users and tells the history of telephony.
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In addition to Vodafone‘s 347, numerous other mobile telephony prefixes exist in Italy, each associated with a different operator:

PrefixOperator
347Vodafone Italia
330 – 339, 360, 363, 366, 368TIM
320, 323, 327, 328, 329, 380, 383, 388, 389Wind Tre
351ILIAD
390 – 393, 3973 Italia
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Technical aspects of the 347 prefix

The 347 prefix is part of the National Telephone Numbering Plan, which defines the rules for the assignment and use of telephone numbers in Italy. Prefixes, together with the rest of the telephone number, are used to route calls to the correct destination. Given the regulations on telephone number portability, it may happen that a number with the 347 prefix, originally activated by the operator Vodafone, is no longer associated with a Vodafone telephone line, but with that of another mobile telephony operator.

Socio-economic impact

The spread of mobile telephony and the availability of numbers with the 347 prefix have had a significant impact on Italian society and economy. Communication has become more immediate and accessible, fostering contacts between people and the sharing of information.  Mobile telephony has also contributed to the development of new business models and technological innovation.

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Conclusions

disegno di un ragazzo seduto a gambe incrociate con un laptop sulle gambe che trae le conclusioni di tutto quello che si è scritto finora

The 347 prefix is a fundamental element in the landscape of mobile telephony in Italy. Its history is intertwined with that of Vodafone and the widespread diffusion of mobile phones. The 347 represents a symbol of connection, of instant communication and of access to information, elements that have profoundly transformed Italian society.

The socio-economic impact of mobile telephony is undeniable. It has revolutionized the way we communicate, work, and interact with the world. The 347 prefix, together with all other mobile telephony prefixes, has contributed to creating a hyperconnected society.

The evolution of the sector does not stop here. New technologies, such as 5G and the Internet of Things, promise to bring further changes. Future scenarios await us where connectivity will be even more pervasive. In this context, the 347 prefix will continue to be a protagonist, witnessing the constant evolution of the way we communicate and live.

Frequently Asked Questions

disegno di un ragazzo seduto con nuvolette di testo con dentro la parola FAQ
Which operator does the 347 prefix belong to?

The 347 prefix belongs to Vodafone Italia.

How do I know if a 347 number is still active?

There is no public database to verify if a phone number is active. You can try calling the number or sending a message.

What to do if I receive unwanted calls from a number with the 347 prefix?

You can block the number on your phone, report the call to Vodafone, or to the competent authorities, or register the number in the public opposition registry.

Can I choose my phone number with the 347 prefix?

Number availability depends on the operator. Some operators offer the possibility to choose from a selection of available numbers.

How can I contact Vodafone customer service if I have a number with the 347 prefix?

You can contact Vodafone customer service at number 190.

Can I transfer my phone number with the 347 prefix to another operator?

Yes, it is possible to request number portability to another telephone operator.

Sources and Further Reading

disegno di un ragazzo seduto con un laptop sulle gambe che ricerca dal web le fonti per scrivere un post
  1. Wikipedia: Telephone numbers in Italy and Mobile Prefixes
  2. International Telecommunication Union (ITU): National Numbering Plans – Italy
  3. Wikipedia: History and Information about Vodafone Italy
  4. AGCOM: Italian Communications Regulatory Authority (Official English Site)
Francesco Zinghinì

Electronic Engineer with a mission to simplify digital tech. Thanks to his background in Systems Theory, he analyzes software, hardware, and network infrastructures to offer practical guides on IT and telecommunications. Transforming technological complexity into accessible solutions.

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