351 Country Code: Everything You Need to Know About Portugal’s Phone Prefix

The number 351 is the international country calling code for Portugal. If you see a phone number starting with +351 or 00351, it originates from Portugal, including mainland Portugal, the Azores, and Madeira. This code is required when calling or texting Portuguese numbers from abroad, and it often appears on your phone screen when you receive communications from companies, services, or individuals based in that country.

What it means / how it works

International country codes are part of the World Numbering Plan managed by the International Telecommunication Union (ITU). Portugal is assigned the zone 3 prefix, and 351 specifically designates the nation of Portugal.

When someone inside Portugal calls another local number, they generally just dial the 9-digit local subscriber number. However, if you are outside Portugal and want to reach that same person or business, your phone needs to know the call is leaving your current country. That is where the 351 code comes in.

Dialing format from abroad typically looks like this:

• Plus sign (+): Represents your country's international prefix (you can often hold down the "0" key on a mobile phone to type the plus sign).
• Country code (351): Directs the call or message to Portugal.
• Local number: The 9-digit Portuguese phone number (mobile numbers usually start with 9, while landlines start with 2).

For example, a complete international dialing string looks like +351 912 345 678.

Practical scenarios

You might encounter the 351 country code in several everyday situations:

• Receiving international business calls: If you work with European vendors, travel agencies, or tech companies based in Lisbon or Porto, their calls will display the +351 prefix on your caller ID.
• Calling family or friends: When you need to contact relatives living in Portugal from North America, Asia, or another European nation, you must prepend 351 to their local numbers.
• Online account verification: Many digital platforms, social networks, and streaming services send one-time passwords (OTP) or verification texts through gateways that route via international numbers, sometimes involving Portuguese carrier nodes.
• Booking travel and accommodations: If you reserve a hotel, rental car, or tour in Lisbon, the confirmation text or customer service callback may originate from a +351 number.
• Customer support inquiries: International companies with European support centers in Portugal may use local lines that require you to dial +351 if you are calling back.
• WhatsApp and messaging apps: When adding international contacts to your phonebook for messaging apps, including the +351 code ensures the app recognizes the Portuguese mobile account instantly.
• SMS marketing and alerts: Global e-commerce platforms sometimes utilize European telecommunication routes, causing notification texts to display international routing headers.
• Shipping and logistics: Package tracking updates from European couriers operating in the Iberian Peninsula often send text alerts with international formatting.

Step-by-step

If you need to dial a Portuguese phone number from another country, follow these simple steps:

1. Check the local phone number to ensure you have all 9 digits. Make sure you know whether it is a mobile number (typically starting with 9) or a landline (starting with 2).
2. Open your phone's dialer app.
3. Press and hold the "0" key until a plus sign (+) appears on the screen. The plus sign acts as a universal shortcut for international dialing.
4. Type the country code for Portugal, which is 351.
5. Enter the local 9-digit phone number without any leading zeros. (In some countries, local numbers start with a zero for domestic use, but this leading zero must be dropped when dialing internationally).
6. Press the call button or send your message.

Safety/privacy/legal

Seeing an unfamiliar country code on your phone can sometimes raise privacy or security questions. Here is what you should keep in mind:

International scam calls and text messages (sometimes called wangiri scams or spoofed messages) can originate from anywhere in the world, and bad actors can occasionally manipulate caller IDs to display various country codes. If you receive a missed call from +351 and you do not know anyone in Portugal, think twice before calling back.

Calling back an unknown international number can result in high premium-rate charges billed by your carrier. If the communication is legitimate—such as a delivery update or a hotel booking confirmation—the sender will usually leave a voicemail or follow up via email.

When dealing with online account verification or receiving verification codes via SMS, always ensure you are using trusted platforms. For users who need to manage online verifications securely without exposing their primary personal phone number, options range from temporary web-based inboxes to dedicated private solutions. For example, if you need to receive SMS online for application testing or account creation, PVACodes provides virtual phone number options across multiple global regions. Always review the privacy policies and terms of any verification service you choose to use.

Best alternatives

Depending on why you are searching for the 351 country code, you might be looking for ways to communicate with Portugal or handle international verification without using a standard personal mobile plan. Here are the most common alternatives:

• VoIP and calling apps: Services like Skype, WhatsApp, Viber, and Google Voice let you make voice calls to Portuguese landlines and mobiles over the internet at reduced rates compared to traditional carrier plans.
• Local European SIM cards or eSIMs: If you are traveling to Portugal, purchasing a local prepaid SIM card or a digital eSIM profile avoids international roaming fees entirely.
• Virtual phone numbers and SMS services: If your goal is to receive text messages, OTP codes, or handle online account activations connected to specific regions, virtual number providers offer temporary or rental numbers. For instance, platforms like PVACodes specialize in virtual numbers for SMS verification, helping users manage digital accounts across different countries.

Frequently Asked Questions

What country is 351?

The 351 country code belongs to Portugal. It covers the entire Portuguese territory, including the mainland, Madeira, and the Azores.

How do I call a Portugal phone number from the US?

To call Portugal from the United States, dial your international exit code (011), then the Portugal country code (351), followed by the local 9-digit phone number. On a mobile phone, you can simply type +351 followed by the local number.

Is 351 a mobile code or a landline code?

351 is the country code for the entire nation, not a specific mobile or landline network. However, Portuguese mobile phone numbers typically start with the digit 9 after the country code.

What should I do if I get a missed call from a +351 number?

If you do not know anyone in Portugal and are not expecting an international shipment or service call, it is usually best not to call back. Returning unknown international calls can result in unexpected premium charges on your phone bill.

Can I use VoIP to call Portugal cheaply?

Yes. Applications like Skype, WhatsApp, FaceTime Audio, and various VoIP service providers allow you to call Portuguese numbers over an internet connection at much lower rates than traditional carrier networks.

How is the 351 number formatted for WhatsApp?

To add a Portuguese contact to WhatsApp, enter the plus sign, followed by 351, and then the 9-digit local number (e.g., +351 912 345 678). Do not include any leading zeros that might be used for domestic dialing inside Portugal.

Are text messages to +351 numbers expensive?

Sending international text messages through your standard mobile carrier can incur per-message fees depending on your mobile plan. Using internet-based messaging apps like WhatsApp or Telegram is usually free over Wi-Fi or mobile data.

Does 351 cover Madeira and the Azores?

Yes. Both the Autonomous Region of Madeira and the Autonomous Region of the Azores fall under the +351 international dialing zone alongside mainland Portugal.

Why did I receive an SMS verification code from a +351 number?

You likely received a text because an online service, website, or mobile application you are interacting with uses a European telecom gateway routed through Portugal to deliver authentication codes.

How can I receive SMS online without sharing my real number?

You can use virtual phone number services that allow you to receive SMS online through temporary web inboxes or rented private numbers. This keeps your personal phone number private during online registrations and platform verifications.

Conclusion

Understanding the 351 country code helps you communicate effectively with Portugal, recognize international calls, and format phone numbers correctly for global messaging apps. Whether you are placing a voice call to Lisbon, planning a trip to Porto, or managing digital account verifications, always remember to include the +351 prefix when dialing from abroad.