If you're looking for an eSIM with a Spanish number to use abroad, it's worth clarifying something from the outset: a travel eSIM gives you data, not a line with a +34 prefix. What you can do is keep your Spanish number while browsing with cheap local data. Here's exactly what you can and cannot do.
Can I have an eSIM with a Spanish number?
A travel eSIM does not assign a Spanish phone number: it only provides mobile data in the destination country. To keep your +34, the key is to leave your main SIM (or its eSIM version) active and use the data eSIM as a second line. This way you keep your number and save money.
The confusion is common. Many people search for "eSIM with Spanish number" thinking they will receive a new line with a Spanish prefix. In reality, data profiles for travelers work with local networks in the country you visit and do not include a phone number. It's the same as with any tourist plan: you pay for gigabytes, not for a voice line. If you truly need an operational Spanish number while traveling, what you need is not to buy a number, but to not lose the one you already have. And that is solved with the phone's dual configuration, something that almost all modern mobile phones allow.
Data vs. number: the key difference
Understanding this distinction saves you money and trouble. A phone number is your identity for calls and SMS; mobile data is the internet connection. A travel eSIM focuses on the latter.
- Your Spanish number (+34): travels with you if you leave your line active. It's for receiving bank SMS, verification codes, and calls.
- The data eSIM: connects to a local network in the destination country and gives you internet at local prices, well below traditional roaming, which can cost 10-20 EUR per day.
The ideal combination for most: Spanish number for receiving codes and important calls, and eSIM for everything else (WhatsApp, maps, social media, email). If you're wondering if you can continue using WhatsApp with your usual number, the answer is yes: WhatsApp is associated with your number, not with the SIM that carries the data. We explain this in depth in our guide on how to use WhatsApp with eSIM.
How to keep your +34 number abroad
This is the scenario almost everyone wants. Your Spanish number still works for receiving calls and SMS, while you browse with the eSIM. The trick is managing both lines.
Tip: activate your Spanish number only for incoming calls and SMS and deactivate its data roaming. This way you receive the bank code without being charged roaming for browsing.
The process, in summary: you keep your Spanish SIM with data roaming off, install the destination data eSIM, and choose the eSIM as the default data line. With this, your +34 receives SMS and calls without incurring expensive data consumption. Receiving an SMS is usually free with most plans; answering a call may have a cost depending on your operator, so confirm before you leave. To avoid unpleasant surprises with your bill, review how to avoid roaming before your trip.
When a virtual Spanish number makes sense
There's a different case: wanting a new, virtual Spanish number, for example if you live abroad and need a +34 for administrative procedures, or if you don't want to give out your personal number. This is not covered by a travel eSIM; it's the territory of VoIP services or virtual numbers.
These services give you a Spanish cloud-based line that works over the internet, useful for receiving verification SMS from Spanish services or for presenting a local image. But beware: they are a different product, with their own subscription, and do not replace mobile data. If your real goal is to browse cheaply in the country you are visiting, you don't need a virtual number: you need a data eSIM. Mixing both concepts is the most common mistake. First, think about why you want the number: if it's to receive codes, your usual +34 will do; if it's to have a permanent local presence outside Spain, that's where virtual numbers come in.
Setting up a dual line on your phone
Almost all recent mobile phones are Dual SIM: one physical or primary eSIM (your Spanish number) and a second eSIM (travel data). The setup is simple and done in Settings.
| Setting | What to set | Why |
|---|---|---|
| Data Line | Travel eSIM | Browse at local prices |
| Data Roaming (SIM +34) | Deactivated | Avoid expensive roaming |
| Calls / SMS | Spanish Number | Receive codes and calls |
| Data Roaming (eSIM) | Activated | The eSIM needs local roaming |
The general idea works the same on iPhone and Android, although the menus differ in name. If you use an iPhone, you can find the step-by-step instructions in how to install and activate eSIM on iPhone. The full activation takes about 1 minute once you scan the QR code, and you can prepare it from home with Wi-Fi before flying.
Common mistakes when looking for a Spanish number
When searching for "eSIM Spanish number," people often fall into a couple of traps that should be avoided to prevent overpaying or being cut off.
- Believing the eSIM provides a new number: it doesn't; it provides data. The number is separate.
- Completely turning off the Spanish SIM: if you deactivate it completely, you stop receiving bank SMS. It's better to only turn off its data.
- Paying for a virtual number when not needed: if you're just traveling, it's an extra expense.
- Forgetting to check compatibility: confirm your phone supports eSIM in this compatibility guide.
With these points clear, the decision is easy: keep your +34, disable roaming, and let a local eSIM handle your data.
Frequently Asked Questions
Does a travel eSIM give me a Spanish phone number?
No. Travel eSIMs offer mobile data in the destination country, not a line with a +34 prefix. To keep your Spanish number, you keep your usual SIM active as a second line for calls and SMS while browsing with the eSIM.
Can I receive SMS on my Spanish number while using the eSIM?
Yes. If you leave your Spanish SIM active for calls and SMS and only turn off its data roaming, you will continue to receive messages, such as bank codes, without paying roaming for browsing. The data will be provided by the local eSIM.
Can I keep my usual WhatsApp number?
Yes. WhatsApp is linked to your number, not to the card that carries the data. Even if you browse with the destination eSIM, your WhatsApp chats and calls remain associated with your usual Spanish number without needing to reconfigure anything.
Do I need a virtual Spanish number if I'm traveling for holidays?
Normally not. A virtual number makes sense if you live abroad or need a permanent Spanish line. For a tourist trip, it is enough to keep your +34 and use a data eSIM to connect to the internet at local prices.
What phone do I need to use two lines at once?
Any mobile phone with eSIM and Dual SIM support, which is common in models from recent years. You will be able to have your Spanish number on one line and the data eSIM on another. Check your model's compatibility before purchasing the eSIM.
Conclusion
In summary: a travel eSIM doesn't give you a new Spanish number, but it allows you to do something even better: keep your usual +34 number and browse cheaply with local data. Configure the dual line, turn off roaming on your Spanish SIM, and let the eSIM handle your data. With PuraSim's eSIM, you keep your number and stay connected from the first minute without any bill surprises.
