In this guide, we’ll walk you through how to keep your UK mobile number active while traveling abroad — without relying on expensive roaming or juggling multiple SIMs. And we’ll introduce you to Keep My Number, the smart, modern solution for staying connected effortlessly.

Why Keeping Your UK Number Matters

• Your phone number isn’t just for friends and family. It’s the key to:
• Bank logins & two-factor authentication
• Receiving important calls from the UK (clients, work, institutions)
  Staying reachable on WhatsApp and other apps tied to your number

Lose access to your number — and you risk being locked out or missing out.

Traditional Solutions Fall Short

Most UK travelers either:

1. Enable roaming with their local provider – and face huge bills
2. Buy local SIMs – and lose access to their UK number
3. Juggle two phones or dual SIMs – and deal with complex setups

Each has major downsides. But now, there’s a better way.

The Smart Way: Use Keep My Number

Keep My Number is designed specifically for UK mobile users who want to:

Stay reachable on their UK number anywhere in the world

Avoid expensive roaming fees

Use local or global eSIM data plans for internet

Keep things simple, in one app

With our service:

You keep your UK number active for incoming calls

You can make outgoing calls using your UK number via the app

You use a global eSIM for affordable data anywhere

No need to swap physical SIMs or carry two phones

How It Works

1. Download the Keep My Number app before you travel
2. Forward your UK number to our system so you can receive calls in-app
3. Start making and receiving calls using your UK number while abroad

All of this happens inside the app — no tech headaches, no SIM juggling.

Why Keep My Number Is Better Than Roaming

Feature	Traditional Roaming	Local SIM	Keep My Number
Keep UK number
Affordable data
Setup required	Complex	Hassle	Easy
Instant access
Works worldwide		Limited

Stay Secure While Abroad

Many travelers get locked out of their bank accounts and important services while abroad because they can’t receive verification calls to their UK number. Keep My Number keeps that line open — and your digital identity secure.

Final Thoughts: Travel Smart, Stay Reachable

Don’t let mobile tech ruin your trip or disconnect you from life back home. Whether you’re gone for a few days or a few months, Keep My Number ensures your UK mobile number travels with you — and your calls come with no surprises.

Stay reachable. Stay secure. Stay connected.

Download Keep My Number now and take your UK number wherever you go.

Whether you’re on a business trip, a family vacation, or exploring the world as a digital nomad — staying connected while traveling is essential. But what’s the best SIM card for calling abroad in 2025?

With dozens of options available, most people settle for roaming plans, local SIMs, or eSIM data packs — and still end up juggling between numbers, apps, and expensive fees.

Let’s explore the most popular international SIM options — and the one solution that finally puts an end to the hassle.

Popular SIM Cards for Calling Abroad

1. Vodafone International SIM
Vodafone offers international add-ons and roaming bundles. It’s a strong, well-known network, but charges can quickly add up, especially for voice calls outside of Europe.
More on Vodafone roaming

2. Three Pay As You Go SIM
Three’s “Go Roam” covers many destinations, and their prepaid SIMs are relatively affordable. However, service can be inconsistent, and countries outside the Go Roam zone come with high call charges.

3. Lebara Mobile
Lebara focuses on cheap international calling. If you’re calling one specific country often, it can be great. But for frequent travelers who change locations — it’s less practical.

4. Airalo eSIM
Airalo offers excellent eSIM data in over 200 countries — perfect for internet browsing and apps. But: no real phone number, no voice calls, and no access to your UK number for calls or SMS.
Visit Airalo

The Problem With Most SIM Options

Each option solves part of the problem:

• Local SIMs give you cheap rates — but disconnect your UK number

• Travel eSIMs give you data — but no access to SMS, banking codes, or UK calls

• UK roaming plans keep your number — but come with high daily fees and limits

So what’s the best SIM card for calling abroad in 2025 — without compromise?

Why Keep My Number Is the Best SIM Card for Calling Abroad in 2025

Keep My Number is a unique travel solution that solves all of the above — in one app.

• Receive calls to your UK number while you travel

• Make calls from your original number — no caller ID issues

• Get global data via an affordable travel eSIM

• No SIM swaps, no contracts, no roaming surprises

And yes — even those SMS codes from your bank or WhatsApp still work.

Related: How to Avoid Roaming Charges Abroad

Final Thoughts: One SIM to Rule Them All

In 2025, staying connected abroad doesn’t have to mean juggling SIM cards, missing important calls, or paying ridiculous roaming charges.

Most SIM cards do one thing well.
Keep My Number does it all — keeping you reachable on your UK number, giving you data, and letting you travel with confidence.

Try Keep My Number today — and stay connected, no matter where life takes you.

In 2025, staying connected while traveling is easier — and more essential — than ever. Whether you’re working remotely, traveling for business, or just vacationing abroad, choosing the best SIM card for international travel can save you time, money, and frustration.

One of the biggest questions travelers face today is: Should you use an eSIM or a physical SIM when traveling? In this article, we’ll compare both options, list their pros and cons, and introduce a smarter alternative for stress-free travel.

What Is a Physical SIM Card?

A physical SIM (Subscriber Identity Module) is the small plastic chip that connects your phone to a mobile network. It gives you access to calls, SMS, and data.

Pros of Physical SIMs:

• Works with nearly all phones, old and new

• Easy to swap between devices

• Widely available in local shops

Cons of Physical SIMs:

• Requires manual installation and replacement

• Easy to lose or damage

• Setup may be difficult in a foreign country or language

What Is an eSIM?

An eSIM (embedded SIM) is a digital SIM card already built into newer smartphones. You don’t insert anything — you activate it using a QR code or app.

Pros of eSIMs:

• No physical card required

• Instant activation (scan and go)

• Less chance of damage or loss

• Can store multiple profiles (e.g., work + personal numbers)

Cons of eSIMs:

• Not all phones support eSIM

• Availability varies by region

• Can be harder to transfer between devices

eSIM vs Physical SIM: Which is the best SIM for international travel?

For short-term tourists or those without eSIM-compatible phones, physical SIMs may still work well.

But for frequent travelers, remote workers, and digital nomads, the eSIM is clearly the winner in 2025. Its digital flexibility, fast setup, and seamless experience across borders make it the go-to option for global connectivity.

The Smarter Choice: Keep My Number eSIM

Not all eSIMs are the same. Most are country-specific, requiring a new setup every time you cross a border.

That’s where Keep My Number changes everything.

Why it’s the best eSIM for international travel in 2025:

One Global eSIM – Use one profile across countries
Keep Your UK Number Active – Make and receive calls.
No Roaming Fees – Save money compared to traditional roaming plans
Instant Setup – Just download, activate, and go

Unlike other eSIMs that offer data only, Keep My Number also keeps your original number working — so friends, family, and clients can always reach you.

Still using a physical SIM when traveling? You might be missing out.

The best SIM for calling abroad in 2025 is digital, flexible, and works everywhere — and Keep My Number is one of the few solutions that delivers calls, and data in one easy app.

Make your next trip simpler.
Switch to Keep My Number — the best SIM solution for global travelers.

If you’re a UK mobile user, there are a few critical tips to avoid high roaming charges, connectivity issues, and unnecessary hassle.

In this guide, we’ll cover the essential do’s and don’ts of using your phone overseas — and introduce a smarter solution: Keep My Number.

Do: Check if Your Phone Supports eSIM

Most modern smartphones — iPhones, Samsungs, and Pixels — support eSIM. It allows you to activate a mobile plan digitally without switching physical SIM cards. If your phone is compatible, you’re already a step ahead.

Don’t: Rely on Traditional Roaming

UK mobile networks like EE, O2, Three, and Vodafone often charge high roaming fees. Even “free roaming” plans usually come with speed limits, hidden costs, or country restrictions.

Do: Use eSIMs for Local Data

Instead of buying a local SIM, you can install an eSIM for data wherever you land. It’s instant, convenient, and doesn’t require physically removing your UK SIM.

Don’t: Buy a New SIM in Every Country

It might seem cheaper to buy a local SIM in each country, but the hassle of switching numbers and losing access to calls or messages from home (especially banks) isn’t worth it.

Do: Keep Your UK Number Active

Many travelers forget how important it is to stay reachable on your UK number. Whether it’s a client call, a bank verification code, or a family emergency — you don’t want to miss it.

Meet Keep My Number: The Best SIM Solution for UK Travelers

Keep My Number is not just another eSIM.  It’s the best SIM for UK travelers who want to stay connected without the hassle of switching numbers.

Here’s why it stands out:

• One Global eSIM — Works across borders, no need to reinstall

• UK Number Always Active — Receive and make calls while abroad

• Affordable Data Plans — Save money vs roaming or multiple local SIMs

• Instant Setup — No paperwork, no store visits, no physical SIM

Unlike most eSIMs that only give you data, Keep My Number lets you stay available on your UK number while using local or global data — the best of both worlds.

Final Travel Tips for UK Users

Before you fly:

• Turn off roaming on your main SIM to avoid surprise charges

• Use eSIM for mobile data in your destination country

• Download travel apps (maps, banking, translation) in advance

• Link important logins to your UK number and keep it active with Keep My Number

Conclusion: Travel Smart, Stay Connected

If you’re still juggling SIM cards or paying high roaming fees, it’s time for a change.

Keep My Number gives UK travelers a reliable, affordable, and stress-free way to stay connected — no matter where you go.

Stay online. Stay in touch. Stay stress-free.