Once you settle abroad, you'll probably ask yourself at some point: "Can I cancel my phone number back home?" Banks, brokerages, credit cards and government services back home may still send verification codes by SMS or check your identity with your home-country number, even when you live overseas. This article is the big-picture map to read before the step-by-step guides. It helps you decide what to sort out and in what order, and points you to detailed articles on each topic. It's for expats, long-stay residents and anyone planning trips back home who wants to keep mobile costs low and still be able to log in to their accounts at home.
- Banks, brokerages and government services at home often send SMS codes to your home-country number
- Keep your number on a low-cost plan and add data with an eSIM only when you need it
- Splitting fixed costs (keeping the number) from variable costs (data) cuts waste
- Only think about cancelling after you've moved verification to an authenticator app, email or another method
- Bloomy is a data-only eSIM: no phone number, SMS or regular calls, but app-based calls such as WhatsApp can work
- In most cases, the practical setup is to keep your home-country number on a low-cost plan from your carrier and add data with an eSIM only when you need it.
- SMS from home doesn't always arrive reliably abroad. Test it on your own phone before you leave, and set up backup options beyond SMS (authenticator apps, email, backup codes).
- Treat "keeping the number" as a fixed monthly cost (insurance) and "data" as a variable cost you pay only when needed. That way you don't pay for a large data plan you hardly use.
This article is based on official information available as of June 2026. Pricing, plans, international SMS reception and each service's verification methods can change, so check each provider's official website before you make any changes.
How to use this guide (start here if you're unsure)
Keeping your number, SMS verification, bank logins and staying connected on trips home are really separate decisions. If you jump straight into the detailed articles, it's easy to lose track of which ones apply to you. This guide gives you the overview first, so you only need to read up on the topics that fit your situation. Follow the steps below and you'll get a clear picture of what to prepare.
- Decide whether you should keep your home-country number (→ Why you shouldn't cancel right away)
- Find out when you'll need it (→ When you're likely to need your home-country number)
- Split fixed and variable costs to keep the number as cheaply as possible (→ Keep the number cheap, buy data only as needed)
- Plan backup verification in case SMS doesn't arrive (→ Don't rely on SMS alone)
- Review all your accounts before you leave (→ Pre-departure checklist)
Key terms
- Number-keeping plan: A low-cost mobile plan used mainly to hold on to your phone number for SMS verification and calls.
- Data-only eSIM: An eSIM for internet data only. It has no phone number and no SMS.
- Number plan + data eSIM: Keeping your number on a low-cost plan and adding only the data you need with a separate eSIM.
- SMS verification backup: Setting up your phone number and alternative verification methods in advance, so you can still log in to services while abroad or on a trip home.
- TOTP (authenticator app): An app that generates 6-digit codes that change over time. It works without a mobile signal, so it's a useful backup when SMS doesn't arrive.
Why you shouldn't cancel right away
If you cancel your home-country number, you may stop receiving SMS codes, be unable to update the number on file, or get stuck during identity checks. The most common trap is that changing your registered number often requires the number you currently have. Cancel first and you may not be able to pass the verification needed to change your settings, and you end up going in circles. A number you've given up can also be hard or impossible to get back.
Not everyone needs to keep their number. If you rarely use financial services, government services or major apps from home, cancelling may be a reasonable choice. But if you plan to keep using accounts and services back home, the safe order is to cancel only after you've moved every verification to another method. We cover this in more detail in Is it safe to cancel your home-country phone number?
When you're likely to need your home-country number
| Service | Why the number is often needed |
|---|---|
| Banks and online banking | SMS codes / one-time passwords for logins and transfers |
| Brokerage accounts | Two-factor authentication and identity checks |
| Credit cards | Cardholder authentication for online payments (e.g. 3-D Secure) |
| Government, tax and pension portals | Logins and official procedures |
| Payment apps, WhatsApp, online marketplaces | Phone number verification and account transfers to a new device |
| Trips back home | Staying reachable on the same number and passing identity checks |
You may need SMS verification from home more often than you expect while abroad, and people usually find out only when they actually need to log in. Verification methods, and whether non-residents can use a service at all, vary by provider and can change, so check each provider's official information for the latest. For practical steps, see How to receive SMS verification codes from home while abroad and How to log in to your bank and brokerage accounts back home. To see more of your options around phone numbers, browse all Phone Number & SMS articles.
Split it into fixed and variable costs
The biggest reason mobile bills grow is paying for your number and your data on the same plan. If you move abroad and keep a large data plan at home, you end up paying every month for data you barely use.
A better approach is to split them by what each one does:
- Fixed cost (insurance) = keeping your number: You pay this every month, but it keeps the minimum you need for SMS verification and identity checks. The cheaper, the better.
- Variable cost (as needed) = data: While abroad, use a local SIM or a data-only eSIM and add only what you use. In months you don't need it, you pay nothing.
This fits what most people living abroad want: keep the number, but skip the big monthly data plan. Keep the fixed cost as low as possible and adjust your data to your trips and stays. That's the core idea behind lower mobile costs.
Keep the number cheap, buy data only as needed
Keeping your home-country number doesn't mean keeping a large monthly plan. Hold the number on a low-cost plan and add data only when you need it. That's the basic setup. We explain how to choose a number-keeping plan in How to keep your home-country phone number cheaply. Many carriers offer basic or low-cost plans that are mainly for keeping a number active. The best fit depends on two things: whether you need to receive SMS abroad, and whether you'll also use the line on trips home. Decide what you need first, and comparing plans becomes much easier.
Four situations and how to set things up
| Situation | Phone number | Data | Suggested approach |
|---|---|---|---|
| Living abroad | Keep on a low-cost plan | Local SIM + eSIM when needed | Save the number for verification |
| Short trip back home | Use as usual | Data eSIM for what you need | Set up beforehand so you're online when you land |
| Long stay back home | Return to normal use | Consider a regular plan | If you'll use a lot of data, a regular plan may make sense |
| Moving back for good | Switch to a regular plan | Regular plan | Review based on how you use it |
The best setup for the same person changes over time. If you plan to switch your number and data setup with each phase ("abroad now, trip home next month"), you'll waste less. We compare data options for trips home in How to stay connected on a trip back home.
Don't rely on SMS alone (do things in the right order before cancelling)
SMS from home doesn't always arrive reliably abroad, so set up backup verification methods too. While your number still works, set up authenticator apps (TOTP), email verification, backup codes and in-app approval prompts.
The order matters. Changing settings often requires the number you currently have, so we recommend this sequence:
- Check how each service you use verifies you (SMS only, or an authenticator app as well)
- While your number still works, register non-SMS options (authenticator app, email, backup codes)
- For every service that allows it, switch verification away from SMS
- Only then decide whether to keep or cancel the number
Switch first, then decide on cancelling. Cancelling first and switching later is the risky order.
Keeping your number is insurance for peace of mind. Don't rely on that insurance alone, though. Combine it with authenticator apps and email verification and you're much less likely to get locked out in countries where SMS doesn't come through. Before you go abroad, take one pass through how each service you use verifies you, and things will be much easier later. You don't need to cover everything perfectly. Securing just three things first (your bank, your brokerage and your main payment apps) makes a big difference when something goes wrong.
Pre-departure checklist
| Category | What to do |
|---|---|
| Phone | Choose a number-keeping plan, confirm you can receive SMS abroad, and check that your phone supports eSIM |
| Banks and brokerages | Check the registered number, verification methods and whether non-residents can keep using the account |
| Government services | Check how you log in to tax, pension and other government portals |
| Payment and messaging apps | Check the registered number and set up account transfer/backup (e.g. payment apps, WhatsApp) |
| Backup verification | Set up an authenticator app, email verification and backup codes |
To check whether your phone is compatible, see eSIM-compatible devices.
Who this approach suits (and who it doesn't)
Good fit
- You want to keep logging in to your bank, brokerage or credit card accounts back home while abroad
- You want to keep your home-country number for SMS verification
- You want to use the same number on trips home
- You don't need a large monthly data plan
Not a good fit
- You want your phone number, SMS, calls and data all from one provider
- You use a large, steady amount of data every month
- You rarely use financial or government services back home and don't need your home-country number
Your data options
Even if you keep your number, you can add only the data you need. If all you want is extra data, a data-only eSIM is one option. With Bloomy you choose a data plan by size and add it to match how long you're staying and how you use your phone. Check the comparison page for coverage and current plan details, and confirm the price when you buy. Please note: Bloomy is a data-only eSIM and does not include a phone number, SMS or regular calls. Keep your number and SMS verification on your number-keeping plan. App-based calls and messages such as WhatsApp may work wherever you have a data connection. Plans are subject to a fair usage policy, and speed and connection quality vary depending on the local network, your device and your location.
Next steps
- Check how your bank, brokerage, credit cards and payment apps verify you
- Confirm the phone number registered with each one is a number you can still use
- Check on your carrier's official site whether your plan can receive SMS abroad
- Set up an authenticator app, email verification and backup codes
- Treat your number plan and your data eSIM as two separate things
- If you have trips home or another move abroad coming up, estimate how much data you'll need
Summary
The key to keeping access to services back home while you live abroad isn't just deciding whether to keep your number. It's making sure you can still log in even if SMS doesn't arrive, and setting that up before you leave. Keep the number on a low-cost plan and add only the data you need. When you split fixed and variable costs, you're prepared without paying for a data plan you don't use. Start by checking how your bank, brokerage and main payment apps verify you, and register non-SMS options while your number still works. For more on each topic, see the related articles below.
This article provides general information only and is not financial, investment, tax or legal advice. Pricing, plan terms, international SMS reception, each service's verification methods and the terms for non-residents vary over time, by usage and by each provider's policies. Before you make any changes, check each provider's official website or consult a qualified professional. We don't guarantee that you'll be able to receive SMS from your home-country number while abroad. Bloomy is a data-only eSIM and does not provide a phone number or SMS. Plans are subject to a fair usage policy, and speed and connection quality vary depending on the local network, your device and your location.
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