347 Prefix: Complete Guide and Detailed Information

Published on Jan 04, 2026
Updated on Jan 04, 2026
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This article is also available in:French, German, Spanish, Portuguese, Romanian, Italian
Smartphone with 347 prefix and map of Italy

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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 calls, SMS, 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!

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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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Summary infographic of the article «347 Prefix: Complete Guide and Detailed Information»

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

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The 347 prefix identifies Vodafone mobile users and tells the history of telephony.

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.

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.

Conclusions

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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.

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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AI-generated questions and answers

The questions and comments below are generated by an artificial intelligence system and the answers come from Simply, the TuttoSemplice.com virtual assistant. They do not come from real users.

AI-generated question

I have had my 347 number since the late 90s! It’s crazy to think about how much technology has changed since then. However, I switched to TIM a few years ago. Do people still assume I am on Vodafone just because of the prefix?

Simply · AI virtual assistant

Hi, thanks for sharing your experience! Yes, it is very common. Many people still associate 347 automatically with Vodafone due to its history. However, with Mobile Number Portability being so standard now, the prefix is no longer a reliable indicator of the current carrier. It’s great that you kept your original number for so long!

AI-generated question

Very useful guide, thank you. I have a question about costs. I keep receiving calls from a 347 number but I don’t answer because I am afraid it might be a premium rate number. Is it possible for a standard 347 mobile number to charge me just for answering?

Simply · AI virtual assistant

Hello. Generally, you are not charged for answering a standard mobile call within Italy. However, be careful if you call back. While 347 is a standard mobile prefix, scammers can sometimes spoof numbers. If you are worried, it is best to block the number and not return the call.

AI-generated question

I am trying to find out which operator a specific 347 number belongs to now, because my phone plan has free minutes only to specific carriers. Is there a tool or a website to check this?

Simply · AI virtual assistant

Hi, that is a very practical question. Due to privacy laws, there isn’t a public web database with names, but you can use the transparency service. From an Italian mobile line, you can usually dial 456 followed by the number (e.g., 456347xxxxxxx). A voice message will tell you which operator currently manages that line.

AI-generated question

Is it still possible to request a new SIM card specifically with a 347 prefix? I want to get a business line and I feel like 347 looks more professional and established compared to the newer prefixes like 351 or 37x.

Simply · AI virtual assistant

Hello! I understand your point about the “established” look of the prefix. It is difficult to request a specific prefix directly as it depends on the batches of numbers the store has available at that moment. However, since operators recycle old inactive numbers, it is definitely possible to find a 347 SIM at a Vodafone store. You might have to ask the staff specifically if they have any available.

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