Everything You Need to Know About the +39 Phone Number and Italy Dialing Codes

A +39 phone number belongs to Italy. If you see this country code on an incoming call, a text message, or an online registration form, it means the communication originates from or is routed through the Italian telecommunications network.

What it means / how it works

The +39 prefix identifies Italy in the international telephone numbering plan managed by the International Telecommunication Union (ITU). When you see +39 at the beginning of a phone number, it tells your carrier that the call or text message is destined for Italy.

Historically, Italy had a complex numbering system where landline area codes varied in length, and callers within Italy had to dial specific trunk codes. In 1998, Italy introduced a major numbering reform known as "chiudatura del prefisso" (closing of the prefix). This reform integrated the area code directly into the national subscriber number. As a result, you must dial the geographic area code—including the starting zero—every time you call an Italian number, whether you are calling from inside Italy, another European country, or across the globe.

For example, a Rome landline number traditionally associated with area code 06 remains dialed as +39 06 followed by the local subscriber number. Mobile numbers operate differently. Italian mobile operators use prefixes starting with the digit 3 (such as 320, 330, 340, or 393), followed by a seven-digit subscriber number. You still prepend +39 when calling these mobiles from outside Italy.

Practical scenarios

• Receiving a call from family or business partners in Italy: Your phone will display +39 followed by the local city code and the subscriber number. If you live outside Italy, this prefix confirms the call is originating from an Italian landline or mobile network.
• Registering for online services and apps: Many global platforms require phone verification via SMS. If you reside in Italy or need to use an Italian telecom identifier for a specific service, you will select Italy (+39) from the country dropdown menu before entering your mobile number.
• Booking travel accommodations: When reserving hotels, car rentals, or tours in Rome, Milan, Florence, or Venice, you will often find contact numbers listed with the +39 prefix for international travelers.
• Troubleshooting international roaming: If you are traveling through Italy with a foreign SIM card, your phone connects to local Italian partner networks like TIM, Vodafone Italy, or WindTre, and incoming callers from your home country must use +39 only if they are trying to reach an Italian-issued local SIM.
• Receiving automated verification codes (OTP): If you use online platforms that verify user identity, you might encounter systems that route one-time passwords through Italian SMS gateways tied to +39 numbers.
• Verifying suspicious missed calls: If you notice an unknown missed call starting with +39 from an unfamiliar city code, it is usually either an international business call, a misdialed number, or occasionally an automated robocall originating from European telecom routes.
• Setting up corporate contact databases: If your company manages customer relationship management (CRM) software with international clients, you must format all Italian entries with +39 and retain the leading zero for landlines to ensure click-to-dial features function correctly.

Step-by-step

Dialing an Italian phone number from another country requires a specific sequence to ensure the call connects successfully through international gateways.

First, find the international exit code for the country you are calling from. If you are calling from the United States or Canada, the exit code is 011. If you are calling from a mobile phone anywhere in the world, you can simply use the plus sign (+) key, which automatically substitutes the correct international prefix.

Second, enter the country code for Italy, which is 39. If you are using the plus sign, type +39.

Third, enter the regional area code or mobile network prefix. For landlines, remember to include the leading zero that is permanently attached to Italian geographic codes (such as 02 for Milan or 06 for Rome). For mobile phones, enter the three-digit mobile prefix (such as 340 or 389).

Fourth, enter the local subscriber number without any spaces or dashes. Double-check that you have not omitted the leading zero on a landline number, as dropping the zero is the most common reason international calls to Italy fail.

Fifth, press the call button and wait for the ring tone. Keep in mind that international calling rates will apply depending on your current telecom provider and your calling plan.

Safety/privacy/legal

Seeing a +39 phone number on your screen does not inherently mean anything dangerous, but understanding telecom security helps you avoid scams. Scammers often use international VoIP (Voice over IP) services to spoof caller IDs, making calls appear as though they originate from Italy or other European countries when the caller is located elsewhere.

If you receive an unexpected missed call from an unfamiliar +39 number, do not immediately call back, especially if it appears to be a premium-rate or unusual long-distance number. Returning unfamiliar international calls can result in unexpected carrier charges.

When providing a +39 phone number to online services, digital platforms, or verification gateways, always consider your personal data privacy. Publicly shared online number lists or free SMS reception tools expose any messages sent to those numbers to anyone viewing the public inbox. If you are registering for sensitive accounts, avoid using public or shared virtual numbers. Instead, use secure, private communication channels.

From a regulatory standpoint, Italian telecommunications operate under strict European Union data protection laws, including the General Data Protection Regulation (GDPR). This means legitimate Italian businesses, telecom operators, and service providers must handle your phone number and personal data with strict privacy safeguards, giving you the right to request data deletion or opt out of marketing communications.

Best alternatives

If you need to receive SMS messages online, test OTP verification systems, or manage temporary communications without exposing your personal mobile device, standard mobile plans are not always necessary. Many users turn to virtual phone number providers when they need temporary or secondary connectivity for digital tasks.

When evaluating options for virtual phone numbers, you can choose between free public message boards, short-term temporary numbers, and dedicated private rental numbers. Free public inboxes allow anyone to view incoming text messages, which makes them completely unsuitable for private accounts or secure logins. Temporary and rental services provide private access to incoming SMS messages for specific durations.

For users who need a paid private option instead of a public inbox, PVACodes can be considered as one SMS verification solution, depending on the country, app, and current availability. When selecting any virtual number provider, always check whether the service supports non-VoIP numbers, as many major platforms block internet-based virtual numbers during registration.

Frequently Asked Questions

Q: What country does +39 belong to?

A: The +39 international country code belongs to Italy.

Q: Do I need to dial the zero for Italian landlines when calling from abroad?

A: Yes. Unlike many other countries where the leading zero of an area code is dropped for international calls, Italy requires you to keep the zero (for example, +39 06 for Rome).

Q: How can I tell if a +39 number is a mobile phone or a landline?

A: Italian mobile numbers always start with the digit 3 after the country code (such as +39 3xx), whereas landline numbers start with a geographic area code beginning with 0 (such as +39 02 for Milan).

Q: Is it safe to answer a call from an unknown +39 number?

A: Answering a call is generally safe, but you should never share personal information, banking details, or verification codes with unknown callers. If you do not recognize the number, let it go to voicemail.

Q: Why is my verification code not arriving on a +39 virtual number?

A: Many online platforms block VoIP or virtual numbers to prevent automated sign-ups. If the platform requires a traditional mobile carrier number, virtual numbers may fail to receive the OTP message.

Q: Can I use a +39 number for WhatsApp verification?

A: Yes, WhatsApp accepts valid Italian mobile numbers (+39) for account registration, provided the number can receive SMS messages or voice calls during the verification setup.

Q: How much does it cost to call a +39 number?

A: Calling costs depend entirely on your current telephone service provider and whether you are calling a landline or a mobile phone in Italy. Check your carrier's international calling rates before placing the call.

Q: What is the international exit code to dial Italy from the US?

A: The exit code from the United States and Canada is 011. Therefore, you would dial 011-39 followed by the Italian phone number, or simply +39 if using a mobile phone.

Q: Are Italian phone numbers all the same length?

A: No. Italian subscriber numbers vary in length. Landline numbers combined with their area codes typically total 9 to 10 digits, while mobile numbers always consist of 10 digits after the country code.

Q: Can I send an SMS to a +39 landline number?

A: Generally, traditional landline numbers in Italy cannot receive standard SMS text messages unless the landline provider supports a specialized text-to-speech conversion service.

Conclusion

Understanding a +39 phone number is straightforward once you know that it represents Italy and follows specific formatting rules that retain geographic area codes. Whether you are contacting family abroad, verifying an online account, or evaluating virtual number options for privacy, paying attention to landline zeros and mobile prefixes ensures your communications connect without interruption.